Let's keep this on the list since it could be generally useful.
In order to get to the next step, you should try to isolate the
problem, to see where the crash is actually happening. Otherwise,
there are far too many possibilities for me to try guessing.
Ideally, you could make a simple patch that reproduces the crash.
.hc
On Apr 11, 2008, at 3:01 AM, nick burge wrote:
Firmata, Pduino and xbees. are all set to communicate at 19200 baud. Nick From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 10 April 2008 23:57 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRs
What baud are you running each at? IIRC, the XBee needs a strange
value..hc On Apr 10, 2008, at 5:52 PM, nick burge wrote:
I wish I knew. I'm loading the arduino-test patch with no other
objects or abstractions so as to eliminate other suspects. Still
PD crashes when I enable more than 2 analogIns. Would it help to speed up or slow down the xbee connection?From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 10 April 2008 23:12 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRs
The code and the electrics are quite separate. If the electrics
work with one firmware, then they'll work with another. The
question is, what is the "it" that grinds to a halt..hc
On Apr 10, 2008, at 4:17 PM, nick burge wrote:
Yes, I've got the latest version....maybe a silly question...but
could it be that Pduino is optimised for sensors working on a
supply of 5v. because the phidget voltage dividers i've got my
FSRs attached to come with a potentiometer that alters the
resistance of the circuit...with pduino i can only activate 2 at
a time before it all grinds to a halt...on arduino2PD i can
activate all six without any problem. Strange. Nick.From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 10 April 2008 21:51 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRs
I've never run on Vista before, so I can't say much about that. I
have run on Debian, Ubuntu, and Mac OS X. It shouldn't matter
what is generating the data on the arduino, the messages coming
to Pd via the serial port should be all the same.Are you using the latest version: http://at.or.at/hans/pd/Pduino-0.3.1.zip
.hc
On Apr 10, 2008, at 12:57 PM, nick burge wrote:
Hello Hans-Christoph, I am using PD 0.39.3 extended. on a
windows vista system. Its PD that crashes, or "stops working" as
Vista so nicely puts it, when I connect the FSRs. I have arduino connecting via wireless xbees at 19200 baud. I also use an infra red distance sensor that gives no problem. I've been routing the data from the FSRs through the autoscale
object. Maybe I should find a way to reduce the amount of data being
sampled...every 40ms for example? How would I do that? Nick. From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 10 April 2008 17:25 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRsWhich program crashes? Which version are you using? You will get
a lot of data, from 6 sensors, Pduino/Firmata will read them all
every 20ms. I have never seen a crash using [arduino], except
when I unplug the arduino when Pd is connected to it, so I
suspect the problem lies elsewhere..hc
On Apr 10, 2008, at 11:16 AM, nick burge wrote:
I have a little problem using Pduino and some force sensing
resistors that I am using in conjunction with phidget voltage
dividers....they seem to crash the program as soon as I
activate more than 1 at a time..... Should I be applying some sort of filter to the data stream? Arduino2PD seems more robust, allowing me to activate all 6
analog inputs at once. Nick Burge. _______________________________________________ PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http:// lists.puredata.info/listinfo/pd-list
Looking at things from a more basic level, you can come up with
a more direct solution... It may sound small in theory, but it
in practice, it can change entire economies. - Amy Smith
There is no way to peace, peace is the way. -A.J. Muste
There is no way to peace, peace is the way. -A.J. Muste
Mistrust authority - promote decentralization. - the hacker ethic
All mankind is of one author, and is one volume; when one man dies,
one chapter is not torn out of the book, but translated into a better
language; and every chapter must be so translated.... -John Donne
Thank you Hans, am I being unrealistic in trying to have six analog inputs active all at once? I know you said that was a lot of data, but I run a fairly powerful laptop with a dual core Centrino processor, and Windows task manager reports only a modest demand on the cpu of around 30% when I have the patch running and all inputs active, so it seems to be an error in timing or syncronisation rather than simply overstressing the system that causes this....I've taken the patch right down to the basic arduino-test patch, but still the crashes occur when I activate more than 2 analog inputs. I'll experiment with different baud rates, go back to a usb connection rather than the xbee wireless system and keep trying to identify the source of the problem. I'll get back to you if I learn anything new. Below is the data produced by the event viewer in Windows in case it means anything to you.
pd.exe 0.0.0.0 47148d16 pd.dll 0.0.0.0 47148d15 c0000005 00004e04 17ec 01c89bd26543018e
Nick.
From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 11 April 2008 18:30 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRs
Let's keep this on the list since it could be generally useful.
In order to get to the next step, you should try to isolate the problem, to see where the crash is actually happening. Otherwise, there are far too many possibilities for me to try guessing. Ideally, you could make a simple patch that reproduces the crash.
.hc
On Apr 11, 2008, at 3:01 AM, nick burge wrote:
Firmata, Pduino and xbees. are all set to communicate at 19200 baud. Nick
From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 10 April 2008 23:57 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRs
What baud are you running each at? IIRC, the XBee needs a strange value.
.hc On Apr 10, 2008, at 5:52 PM, nick burge wrote:
I wish I knew. I'm loading the arduino-test patch with no other objects or abstractions so as to eliminate other suspects. Still PD crashes when I enable more than 2 analogIns. Would it help to speed up or slow down the xbee connection?
From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 10 April 2008 23:12 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRs
The code and the electrics are quite separate. If the electrics work with one firmware, then they'll work with another. The question is, what is the "it" that grinds to a halt.
.hc
On Apr 10, 2008, at 4:17 PM, nick burge wrote:
Yes, I've got the latest version....maybe a silly question...but could it be that Pduino is optimised for sensors working on a supply of 5v. because the phidget voltage dividers i've got my FSRs attached to come with a potentiometer that alters the resistance of the circuit...with pduino i can only activate 2 at a time before it all grinds to a halt...on arduino2PD i can activate all six without any problem. Strange. Nick.
From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 10 April 2008 21:51 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRs
I've never run on Vista before, so I can't say much about that. I have run on Debian, Ubuntu, and Mac OS X. It shouldn't matter what is generating the data on the arduino, the messages coming to Pd via the serial port should be all the same.
Are you using the latest version: http://at.or.at/hans/pd/Pduino-0.3.1.zip
.hc
On Apr 10, 2008, at 12:57 PM, nick burge wrote:
Hello Hans-Christoph, I am using PD 0.39.3 extended. on a windows vista system. Its PD that crashes, or "stops working" as Vista so nicely puts it, when I connect the FSRs. I have arduino connecting via wireless xbees at 19200 baud. I also use an infra red distance sensor that gives no problem. I've been routing the data from the FSRs through the autoscale object. Maybe I should find a way to reduce the amount of data being sampled...every 40ms for example? How would I do that? Nick.
From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 10 April 2008 17:25 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRs
Which program crashes? Which version are you using? You will get a lot of data, from 6 sensors, Pduino/Firmata will read them all every 20ms. I have never seen a crash using [arduino], except when I unplug the arduino when Pd is connected to it, so I suspect the problem lies elsewhere.
.hc
On Apr 10, 2008, at 11:16 AM, nick burge wrote:
I have a little problem using Pduino and some force sensing resistors that I am using in conjunction with phidget voltage dividers....they seem to crash the program as soon as I activate more than 1 at a time..... Should I be applying some sort of filter to the data stream? Arduino2PD seems more robust, allowing me to activate all 6 analog inputs at once.
Nick Burge. _______________________________________________ PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Looking at things from a more basic level, you can come up with a more direct solution... It may sound small in theory, but it in practice, it can change entire economies. - Amy Smith
There is no way to peace, peace is the way. -A.J. Muste
There is no way to peace, peace is the way. -A.J. Muste
Mistrust authority - promote decentralization. - the hacker ethic
All mankind is of one author, and is one volume; when one man dies, one chapter is not torn out of the book, but translated into a better language; and every chapter must be so translated.... -John Donne
I use 6 analog inputs all of the time on Mac and Linux. I've never
used 19200 tho. Try using [comport] alone to eliminate anything in
[arduino]. Maybe there is a bug in comport on vista?
.hc
On Apr 11, 2008, at 3:17 PM, nick burge wrote:
Thank you Hans, am I being unrealistic in trying to have six
analog inputs active all at once? I know you said that was a lot of
data, but I run a fairly powerful laptop with a dual core Centrino
processor, and Windows task manager reports only a modest demand
on the cpu of around 30% when I have the patch running and all
inputs active, so it seems to be an error in timing or
syncronisation rather than simply overstressing the system that
causes this....I've taken the patch right down to the basic arduino- test patch, but still the crashes occur when I activate more than 2
analog inputs. I'll experiment with different baud rates, go back
to a usb connection rather than the xbee wireless system and keep
trying to identify the source of the problem. I'll get back to you
if I learn anything new. Below is the data produced by the event
viewer in Windows in case it means anything to you.pd.exe 0.0.0.0 47148d16 pd.dll 0.0.0.0 47148d15 c0000005 00004e04 17ec 01c89bd26543018e
Nick.
From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 11 April 2008 18:30 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRs
Let's keep this on the list since it could be generally useful.
In order to get to the next step, you should try to isolate the
problem, to see where the crash is actually happening. Otherwise,
there are far too many possibilities for me to try guessing.
Ideally, you could make a simple patch that reproduces the crash..hc
On Apr 11, 2008, at 3:01 AM, nick burge wrote:
Firmata, Pduino and xbees. are all set to communicate at 19200 baud. Nick From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 10 April 2008 23:57 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRs
What baud are you running each at? IIRC, the XBee needs a strange
value..hc On Apr 10, 2008, at 5:52 PM, nick burge wrote:
I wish I knew. I'm loading the arduino-test patch with no other
objects or abstractions so as to eliminate other suspects. Still
PD crashes when I enable more than 2 analogIns. Would it help to speed up or slow down the xbee connection?From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 10 April 2008 23:12 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRs
The code and the electrics are quite separate. If the electrics
work with one firmware, then they'll work with another. The
question is, what is the "it" that grinds to a halt..hc
On Apr 10, 2008, at 4:17 PM, nick burge wrote:
Yes, I've got the latest version....maybe a silly question...but
could it be that Pduino is optimised for sensors working on a
supply of 5v. because the phidget voltage dividers i've got my
FSRs attached to come with a potentiometer that alters the
resistance of the circuit...with pduino i can only activate 2 at
a time before it all grinds to a halt...on arduino2PD i can
activate all six without any problem. Strange. Nick.From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 10 April 2008 21:51 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRs
I've never run on Vista before, so I can't say much about that.
I have run on Debian, Ubuntu, and Mac OS X. It shouldn't matter
what is generating the data on the arduino, the messages coming
to Pd via the serial port should be all the same.Are you using the latest version: http://at.or.at/hans/pd/Pduino-0.3.1.zip
.hc
On Apr 10, 2008, at 12:57 PM, nick burge wrote:
Hello Hans-Christoph, I am using PD 0.39.3 extended. on a
windows vista system. Its PD that crashes, or "stops working"
as Vista so nicely puts it, when I connect the FSRs. I have arduino connecting via wireless xbees at 19200 baud. I also use an infra red distance sensor that gives no problem. I've been routing the data from the FSRs through the autoscale
object. Maybe I should find a way to reduce the amount of data being
sampled...every 40ms for example? How would I do that? Nick. From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 10 April 2008 17:25 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRsWhich program crashes? Which version are you using? You will
get a lot of data, from 6 sensors, Pduino/Firmata will read
them all every 20ms. I have never seen a crash using [arduino],
except when I unplug the arduino when Pd is connected to it, so
I suspect the problem lies elsewhere..hc
On Apr 10, 2008, at 11:16 AM, nick burge wrote:
I have a little problem using Pduino and some force sensing
resistors that I am using in conjunction with phidget voltage
dividers....they seem to crash the program as soon as I
activate more than 1 at a time..... Should I be applying some sort of filter to the data stream? Arduino2PD seems more robust, allowing me to activate all 6
analog inputs at once. Nick Burge. _______________________________________________ PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http:// lists.puredata.info/listinfo/pd-list
Looking at things from a more basic level, you can come up with
a more direct solution... It may sound small in theory, but it
in practice, it can change entire economies. - Amy Smith
There is no way to peace, peace is the way. -A.J. Muste
There is no way to peace, peace is the way. -A.J. Muste
Mistrust authority - promote decentralization. - the hacker ethic
All mankind is of one author, and is one volume; when one man dies,
one chapter is not torn out of the book, but translated into a
better language; and every chapter must be so translated.... -John
Donne
You can't steal a gift. Bird gave the world his music, and if you can
hear it, you can have it. - Dizzy Gillespie
OK this is getting interesting. I have got the FSRs set up again on my breadboard so I can experiment a bit. I've tried different baud rates and get the same result...that is to say a crash in PD. The FSRs connect to Phidget voltage dividers as recommended by the suppliers and from the voltage dividers we have 3 wires: analog in, 5v and ground. Now if I swap the wires they call "analog in" with the 5v wire on the breadboard and connect again to Pduino I can enable all the analog inputs in the Arduino object and NO CRASH.... I am no expert in electronics, but I'm sure someone can give me an explanation as to what is going on. Looking at the manual for the Phidget voltage dividers I see that in the proprietry software designed for use with the phidget microprocessor there is a setting you have to select: namely "Ratiometric" when using these voltage dividers. Could that have anything to do with it?
Nick.
From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 12 April 2008 00:41 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRs
I use 6 analog inputs all of the time on Mac and Linux. I've never used 19200 tho. Try using [comport] alone to eliminate anything in [arduino]. Maybe there is a bug in comport on vista?
.hc
On Apr 11, 2008, at 3:17 PM, nick burge wrote:
Thank you Hans, am I being unrealistic in trying to have six analog inputs active all at once? I know you said that was a lot of data, but I run a fairly powerful laptop with a dual core Centrino processor, and Windows task manager reports only a modest demand on the cpu of around 30% when I have the patch running and all inputs active, so it seems to be an error in timing or syncronisation rather than simply overstressing the system that causes this....I've taken the patch right down to the basic arduino-test patch, but still the crashes occur when I activate more than 2 analog inputs. I'll experiment with different baud rates, go back to a usb connection rather than the xbee wireless system and keep trying to identify the source of the problem. I'll get back to you if I learn anything new. Below is the data produced by the event viewer in Windows in case it means anything to you.
pd.exe 0.0.0.0 47148d16 pd.dll 0.0.0.0 47148d15 c0000005 00004e04 17ec 01c89bd26543018e
Nick.
From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 11 April 2008 18:30 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRs
Let's keep this on the list since it could be generally useful.
In order to get to the next step, you should try to isolate the problem, to see where the crash is actually happening. Otherwise, there are far too many possibilities for me to try guessing. Ideally, you could make a simple patch that reproduces the crash.
.hc
On Apr 11, 2008, at 3:01 AM, nick burge wrote:
Firmata, Pduino and xbees. are all set to communicate at 19200 baud. Nick
From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 10 April 2008 23:57 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRs
What baud are you running each at? IIRC, the XBee needs a strange value.
.hc On Apr 10, 2008, at 5:52 PM, nick burge wrote:
I wish I knew. I'm loading the arduino-test patch with no other objects or abstractions so as to eliminate other suspects. Still PD crashes when I enable more than 2 analogIns. Would it help to speed up or slow down the xbee connection?
From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 10 April 2008 23:12 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRs
The code and the electrics are quite separate. If the electrics work with one firmware, then they'll work with another. The question is, what is the "it" that grinds to a halt.
.hc
On Apr 10, 2008, at 4:17 PM, nick burge wrote:
Yes, I've got the latest version....maybe a silly question...but could it be that Pduino is optimised for sensors working on a supply of 5v. because the phidget voltage dividers i've got my FSRs attached to come with a potentiometer that alters the resistance of the circuit...with pduino i can only activate 2 at a time before it all grinds to a halt...on arduino2PD i can activate all six without any problem. Strange. Nick.
From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 10 April 2008 21:51 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRs
I've never run on Vista before, so I can't say much about that. I have run on Debian, Ubuntu, and Mac OS X. It shouldn't matter what is generating the data on the arduino, the messages coming to Pd via the serial port should be all the same.
Are you using the latest version: http://at.or.at/hans/pd/Pduino-0.3.1.zip
.hc
On Apr 10, 2008, at 12:57 PM, nick burge wrote:
Hello Hans-Christoph, I am using PD 0.39.3 extended. on a windows vista system. Its PD that crashes, or "stops working" as Vista so nicely puts it, when I connect the FSRs. I have arduino connecting via wireless xbees at 19200 baud. I also use an infra red distance sensor that gives no problem. I've been routing the data from the FSRs through the autoscale object. Maybe I should find a way to reduce the amount of data being sampled...every 40ms for example? How would I do that? Nick.
From: Hans-Christoph Steiner [mailto:hans@eds.org] Sent: 10 April 2008 17:25 To: nick burge Cc: Pd List Subject: Re: [PD] pduino and FSRs
Which program crashes? Which version are you using? You will get a lot of data, from 6 sensors, Pduino/Firmata will read them all every 20ms. I have never seen a crash using [arduino], except when I unplug the arduino when Pd is connected to it, so I suspect the problem lies elsewhere.
.hc
On Apr 10, 2008, at 11:16 AM, nick burge wrote:
I have a little problem using Pduino and some force sensing resistors that I am using in conjunction with phidget voltage dividers....they seem to crash the program as soon as I activate more than 1 at a time..... Should I be applying some sort of filter to the data stream? Arduino2PD seems more robust, allowing me to activate all 6 analog inputs at once.
Nick Burge. _______________________________________________ PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Looking at things from a more basic level, you can come up with a more direct solution... It may sound small in theory, but it in practice, it can change entire economies. - Amy Smith
There is no way to peace, peace is the way. -A.J. Muste
There is no way to peace, peace is the way. -A.J. Muste
Mistrust authority - promote decentralization. - the hacker ethic
All mankind is of one author, and is one volume; when one man dies, one chapter is not torn out of the book, but translated into a better language; and every chapter must be so translated.... -John Donne
You can't steal a gift. Bird gave the world his music, and if you can hear it, you can have it. - Dizzy Gillespie
hi nick, did not read through the whole history of this thread but it seems the crash is related to the arduino powering down because of a short circuit. actually the usb port is the one that powers down the arduino or at least disconnect the arduino and that can cause comport to crash. I think you should check your circuit again to make sure there is no short circuit. I am not sure about the phidget but what you need is a resistor connected to ground that circumvents short circuit when you are at the lowest sensor resistance. that is, when you - for example - turn a potentiometer all the way up, it connects the "in" directly to the "out", without any resistance and that causes a short circuit. with the fsr it might be something similar, but it is just a guess. marius.
nick burge wrote:
OK this is getting interesting. I have got the FSRs set up again on my breadboard so I can experiment a bit. I've tried different baud rates and get the same result...that is to say a crash in PD. The FSRs connect to Phidget voltage dividers as recommended by the suppliers and from the voltage dividers we have 3 wires: analog in, 5v and ground. Now if I swap the wires they call "analog in" with the 5v wire on the breadboard and connect again to Pduino I can enable all the analog inputs in the Arduino object and NO CRASH.... I am no expert in electronics, but I'm sure someone can give me an explanation as to what is going on. Looking at the manual for the Phidget voltage dividers I see that in the proprietry software designed for use with the phidget microprocessor there is a setting you have to select: namely "Ratiometric" when using these voltage dividers. Could that have anything to do with it?
Nick.
*From:* Hans-Christoph Steiner [mailto:hans@eds.org] *Sent:* 12 April 2008 00:41 *To:* nick burge *Cc:* Pd List *Subject:* Re: [PD] pduino and FSRs
I use 6 analog inputs all of the time on Mac and Linux. I've never used 19200 tho. Try using [comport] alone to eliminate anything in [arduino]. Maybe there is a bug in comport on vista?
.hc
On Apr 11, 2008, at 3:17 PM, nick burge wrote:
Thank you Hans, am I being unrealistic in trying to have six analog inputs active all at once? I know you said that was a lot of data, but I run a fairly powerful laptop with a dual core Centrino processor, and Windows task manager reports only a modest demand on the cpu of around 30% when I have the patch running and all inputs active, so it seems to be an error in timing or syncronisation rather than simply overstressing the system that causes this....I've taken the patch right down to the basic arduino-test patch, but still the crashes occur when I activate more than 2 analog inputs. I'll experiment with different baud rates, go back to a usb connection rather than the xbee wireless system and keep trying to identify the source of the problem. I'll get back to you if I learn anything new. Below is the data produced by the event viewer in Windows in case it means anything to you. pd.exe
** 0.0.0.0 ** 47148d16 ** pd.dll ** 0.0.0.0 ** 47148d15 ** c0000005 ** 00004e04 ** 17ec ** 01c89bd26543018eNick.
*From:* Hans-Christoph Steiner [mailto:hans@eds.org] *Sent:* 11 April 2008 18:30 *To:* nick burge *Cc:* Pd List *Subject:* Re: [PD] pduino and FSRs
Let's keep this on the list since it could be generally useful.
In order to get to the next step, you should try to isolate the problem, to see where the crash is actually happening. Otherwise, there are far too many possibilities for me to try guessing. Ideally, you could make a simple patch that reproduces the crash.
.hc
On Apr 11, 2008, at 3:01 AM, nick burge wrote:
Firmata, Pduino and xbees. are all set to communicate at 19200 baud. Nick
*From:* Hans-Christoph Steiner [mailto:hans@eds.org] *Sent:* 10 April 2008 23:57 *To:* nick burge *Cc:* Pd List *Subject:* Re: [PD] pduino and FSRs
What baud are you running each at? IIRC, the XBee needs a strange value.
.hc On Apr 10, 2008, at 5:52 PM, nick burge wrote:
I wish I knew. I'm loading the arduino-test patch with no other objects or abstractions so as to eliminate other suspects. Still PD crashes when I enable more than 2 analogIns. Would it help to speed up or slow down the xbee connection?
*From:* Hans-Christoph Steiner [mailto:hans@eds.org] *Sent:* 10 April 2008 23:12 *To:* nick burge *Cc:* Pd List *Subject:* Re: [PD] pduino and FSRs
The code and the electrics are quite separate. If the electrics work with one firmware, then they'll work with another. The question is, what is the "it" that grinds to a halt.
.hc
On Apr 10, 2008, at 4:17 PM, nick burge wrote:
Yes, I've got the latest version....maybe a silly question...but could it be that Pduino is optimised for sensors working on a supply of 5v. because the phidget voltage dividers i've got my FSRs attached to come with a potentiometer that alters the resistance of the circuit...with pduino i can only activate 2 at a time before it all grinds to a halt...on arduino2PD i can activate all six without any problem. Strange. Nick.
*From:* Hans-Christoph Steiner [mailto:hans@eds.org] *Sent:* 10 April 2008 21:51 *To:* nick burge *Cc:* Pd List *Subject:* Re: [PD] pduino and FSRs
I've never run on Vista before, so I can't say much about that. I have run on Debian, Ubuntu, and Mac OS X. It shouldn't matter what is generating the data on the arduino, the messages coming to Pd via the serial port should be all the same.
Are you using the latest version: http://at.or.at/hans/pd/Pduino-0.3.1.zip
.hc
On Apr 10, 2008, at 12:57 PM, nick burge wrote:
Hello Hans-Christoph, I am using PD 0.39.3 extended. on a windows vista system. Its PD that crashes, or "stops working" as Vista so nicely puts it, when I connect the FSRs. I have arduino connecting via wireless xbees at 19200 baud. I also use an infra red distance sensor that gives no problem. I've been routing the data from the FSRs through the autoscale object. Maybe I should find a way to reduce the amount of data being sampled...every 40ms for example? How would I do that? Nick.
*From:* Hans-Christoph Steiner [mailto:hans@eds.org] *Sent:* 10 April 2008 17:25 *To:* nick burge *Cc:* Pd List *Subject:* Re: [PD] pduino and FSRs
Which program crashes? Which version are you using? You will get a lot of data, from 6 sensors, Pduino/Firmata will read them all every 20ms. I have never seen a crash using [arduino], except when I unplug the arduino when Pd is connected to it, so I suspect the problem lies elsewhere.
.hc
On Apr 10, 2008, at 11:16 AM, nick burge wrote: > I have a little problem using Pduino and some force sensing > resistors that I am using in conjunction with phidget voltage > dividers....they seem to crash the program as soon as I activate > more than 1 at a time..... > Should I be applying some sort of filter to the data stream? > Arduino2PD seems more robust, allowing me to activate all 6 > analog inputs at once. > Nick Burge. > _______________________________________________ > PD-list@iem.at mailto:PD-list@iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list
Looking at things from a more basic level, you can come up with a more direct solution... It may sound small in theory, but it in practice, it can change entire economies. - Amy Smith
There is no way to peace, peace is the way. -A.J. Muste
There is no way to peace, peace is the way. -A.J. Muste
Mistrust authority - promote decentralization. - the hacker ethic
All mankind is of one author, and is one volume; when one man dies, one chapter is not torn out of the book, but translated into a better language; and every chapter must be so translated.... -John Donne
You can't steal a gift. Bird gave the world his music, and if you can hear it, you can have it. - Dizzy Gillespie
PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
This makes sense. I used some FSRs with a hacked joystick HID device and got into some trouble there as well. FSRs have zero resistance when no force is applied, so essentially you are short circuiting the 5v directly to ground when you plug them in without any force applied. I would definitely try a resistor in series with each FSR, that's how I did it with the HID joystick, which also crashed (the joystick did not function) when the FSR was plugged in without any resistance.
good luck! d.
marius schebella wrote:
hi nick, did not read through the whole history of this thread but it seems the crash is related to the arduino powering down because of a short circuit. actually the usb port is the one that powers down the arduino or at least disconnect the arduino and that can cause comport to crash. I think you should check your circuit again to make sure there is no short circuit. I am not sure about the phidget but what you need is a resistor connected to ground that circumvents short circuit when you are at the lowest sensor resistance. that is, when you - for example - turn a potentiometer all the way up, it connects the "in" directly to the "out", without any resistance and that causes a short circuit. with the fsr it might be something similar, but it is just a guess. marius.
nick burge wrote:
OK this is getting interesting. I have got the FSRs set up again on my breadboard so I can experiment a bit. I've tried different baud rates and get the same result...that is to say a crash in PD. The FSRs connect to Phidget voltage dividers as recommended by the suppliers and from the voltage dividers we have 3 wires: analog in, 5v and ground. Now if I swap the wires they call "analog in" with the 5v wire on the breadboard and connect again to Pduino I can enable all the analog inputs in the Arduino object and NO CRASH.... I am no expert in electronics, but I'm sure someone can give me an explanation as to what is going on. Looking at the manual for the Phidget voltage dividers I see that in the proprietry software designed for use with the phidget microprocessor there is a setting you have to select: namely "Ratiometric" when using these voltage dividers. Could that have anything to do with it?
Nick.
*From:* Hans-Christoph Steiner [mailto:hans@eds.org] *Sent:* 12 April 2008 00:41 *To:* nick burge *Cc:* Pd List *Subject:* Re: [PD] pduino and FSRs
I use 6 analog inputs all of the time on Mac and Linux. I've never used 19200 tho. Try using [comport] alone to eliminate anything in [arduino]. Maybe there is a bug in comport on vista?
.hc
On Apr 11, 2008, at 3:17 PM, nick burge wrote:
Thank you Hans, am I being unrealistic in trying to have six analog inputs active all at once? I know you said that was a lot of data, but I run a fairly powerful laptop with a dual core Centrino processor, and Windows task manager reports only a modest demand on the cpu of around 30% when I have the patch running and all inputs active, so it seems to be an error in timing or syncronisation rather than simply overstressing the system that causes this....I've taken the patch right down to the basic arduino-test patch, but still the crashes occur when I activate more than 2 analog inputs. I'll experiment with different baud rates, go back to a usb connection rather than the xbee wireless system and keep trying to identify the source of the problem. I'll get back to you if I learn anything new. Below is the data produced by the event viewer in Windows in case it means anything to you. pd.exe
** 0.0.0.0 ** 47148d16 ** pd.dll ** 0.0.0.0 ** 47148d15 ** c0000005 ** 00004e04 ** 17ec ** 01c89bd26543018eNick.
*From:* Hans-Christoph Steiner [mailto:hans@eds.org] *Sent:* 11 April 2008 18:30 *To:* nick burge *Cc:* Pd List *Subject:* Re: [PD] pduino and FSRs
Let's keep this on the list since it could be generally useful.
In order to get to the next step, you should try to isolate the problem, to see where the crash is actually happening. Otherwise, there are far too many possibilities for me to try guessing. Ideally, you could make a simple patch that reproduces the crash.
.hc
On Apr 11, 2008, at 3:01 AM, nick burge wrote:
Firmata, Pduino and xbees. are all set to communicate at 19200 baud. Nick
*From:* Hans-Christoph Steiner [mailto:hans@eds.org] *Sent:* 10 April 2008 23:57 *To:* nick burge *Cc:* Pd List *Subject:* Re: [PD] pduino and FSRs
What baud are you running each at? IIRC, the XBee needs a strange value.
.hc On Apr 10, 2008, at 5:52 PM, nick burge wrote:
I wish I knew. I'm loading the arduino-test patch with no other objects or abstractions so as to eliminate other suspects. Still PD crashes when I enable more than 2 analogIns. Would it help to speed up or slow down the xbee connection?
*From:* Hans-Christoph Steiner [mailto:hans@eds.org] *Sent:* 10 April 2008 23:12 *To:* nick burge *Cc:* Pd List *Subject:* Re: [PD] pduino and FSRs
The code and the electrics are quite separate. If the electrics work with one firmware, then they'll work with another. The question is, what is the "it" that grinds to a halt.
.hc
On Apr 10, 2008, at 4:17 PM, nick burge wrote:
Yes, I've got the latest version....maybe a silly question...but could it be that Pduino is optimised for sensors working on a supply of 5v. because the phidget voltage dividers i've got my FSRs attached to come with a potentiometer that alters the resistance of the circuit...with pduino i can only activate 2 at a time before it all grinds to a halt...on arduino2PD i can activate all six without any problem. Strange. Nick.
*From:* Hans-Christoph Steiner [mailto:hans@eds.org] *Sent:* 10 April 2008 21:51 *To:* nick burge *Cc:* Pd List *Subject:* Re: [PD] pduino and FSRs
I've never run on Vista before, so I can't say much about that. I have run on Debian, Ubuntu, and Mac OS X. It shouldn't matter what is generating the data on the arduino, the messages coming to Pd via the serial port should be all the same.
Are you using the latest version: http://at.or.at/hans/pd/Pduino-0.3.1.zip
.hc
On Apr 10, 2008, at 12:57 PM, nick burge wrote: > Hello Hans-Christoph, I am using PD 0.39.3 extended. on a windows > vista system. Its PD that crashes, or "stops working" as Vista so > nicely puts it, when I connect the FSRs. > I have arduino connecting via wireless xbees at 19200 baud. > I also use an infra red distance sensor that gives no problem. > I've been routing the data from the FSRs through the autoscale object. > Maybe I should find a way to reduce the amount of data being > sampled...every 40ms for example? How would I do that? > Nick. > ------------------------------------------------------------------------ > *From:* Hans-Christoph Steiner [mailto:hans@eds.org] > *Sent:* 10 April 2008 17:25 > *To:* nick burge > *Cc:* Pd List > *Subject:* Re: [PD] pduino and FSRs > > > Which program crashes? Which version are you using? You will get a > lot of data, from 6 sensors, Pduino/Firmata will read them all > every 20ms. I have never seen a crash using [arduino], except when > I unplug the arduino when Pd is connected to it, so I suspect the > problem lies elsewhere. > > .hc > > On Apr 10, 2008, at 11:16 AM, nick burge wrote: >> I have a little problem using Pduino and some force sensing >> resistors that I am using in conjunction with phidget voltage >> dividers....they seem to crash the program as soon as I activate >> more than 1 at a time..... >> Should I be applying some sort of filter to the data stream? >> Arduino2PD seems more robust, allowing me to activate all 6 >> analog inputs at once. >> Nick Burge. >> _______________________________________________ >> PD-list@iem.at mailto:PD-list@iem.at mailing list >> UNSUBSCRIBE and account-management -> >> http://lists.puredata.info/listinfo/pd-list > > > ---------------------------------------------------------------------------- > > Looking at things from a more basic level, you can come up with a > more direct solution... It may sound small in theory, but it in > practice, it can change entire economies. - Amy Smith > >
There is no way to peace, peace is the way. -A.J. Muste
There is no way to peace, peace is the way. -A.J. Muste
Mistrust authority - promote decentralization. - the hacker ethic
All mankind is of one author, and is one volume; when one man dies, one chapter is not torn out of the book, but translated into a better language; and every chapter must be so translated.... -John Donne
You can't steal a gift. Bird gave the world his music, and if you can hear it, you can have it. - Dizzy Gillespie
PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Some words from the grumbly old man's advice department...
In general, if you aren't 100% sure of the circuit and how it works (this being a very good example), you'd be best off running the Arduino on external power rather than power from the USB bus. Unless you want a non-working USB bus on your computer some day ;-)
You didn't indicate how you were powering the Arduino, so cheerfully disregard this email if you are already playing safe.
Have a nice day, d.
Derek Holzer wrote:
This makes sense. I used some FSRs with a hacked joystick HID device and got into some trouble there as well. FSRs have zero resistance when no force is applied, so essentially you are short circuiting the 5v directly to ground when you plug them in without any force applied. I would definitely try a resistor in series with each FSR, that's how I did it with the HID joystick, which also crashed (the joystick did not function) when the FSR was plugged in without any resistance.
good luck! d.
marius schebella wrote:
hi nick, did not read through the whole history of this thread but it seems the crash is related to the arduino powering down because of a short circuit. actually the usb port is the one that powers down the arduino or at least disconnect the arduino and that can cause comport to crash. I think you should check your circuit again to make sure there is no short circuit. I am not sure about the phidget but what you need is a resistor connected to ground that circumvents short circuit when you are at the lowest sensor resistance. that is, when you - for example - turn a potentiometer all the way up, it connects the "in" directly to the "out", without any resistance and that causes a short circuit. with the fsr it might be something similar, but it is just a guess. marius.
nick burge wrote:
OK this is getting interesting. I have got the FSRs set up again on my breadboard so I can experiment a bit. I've tried different baud rates and get the same result...that is to say a crash in PD. The FSRs connect to Phidget voltage dividers as recommended by the suppliers and from the voltage dividers we have 3 wires: analog in, 5v and ground. Now if I swap the wires they call "analog in" with the 5v wire on the breadboard and connect again to Pduino I can enable all the analog inputs in the Arduino object and NO CRASH.... I am no expert in electronics, but I'm sure someone can give me an explanation as to what is going on. Looking at the manual for the Phidget voltage dividers I see that in the proprietry software designed for use with the phidget microprocessor there is a setting you have to select: namely "Ratiometric" when using these voltage dividers. Could that have anything to do with it?
Nick.
*From:* Hans-Christoph Steiner [mailto:hans@eds.org] *Sent:* 12 April 2008 00:41 *To:* nick burge *Cc:* Pd List *Subject:* Re: [PD] pduino and FSRs
I use 6 analog inputs all of the time on Mac and Linux. I've never used 19200 tho. Try using [comport] alone to eliminate anything in [arduino]. Maybe there is a bug in comport on vista?
.hc
On Apr 11, 2008, at 3:17 PM, nick burge wrote:
Thank you Hans, am I being unrealistic in trying to have six analog inputs active all at once? I know you said that was a lot of data, but I run a fairly powerful laptop with a dual core Centrino processor, and Windows task manager reports only a modest demand on the cpu of around 30% when I have the patch running and all inputs active, so it seems to be an error in timing or syncronisation rather than simply overstressing the system that causes this....I've taken the patch right down to the basic arduino-test patch, but still the crashes occur when I activate more than 2 analog inputs. I'll experiment with different baud rates, go back to a usb connection rather than the xbee wireless system and keep trying to identify the source of the problem. I'll get back to you if I learn anything new. Below is the data produced by the event viewer in Windows in case it means anything to you. pd.exe
** 0.0.0.0 ** 47148d16 ** pd.dll ** 0.0.0.0 ** 47148d15 ** c0000005 ** 00004e04 ** 17ec ** 01c89bd26543018eNick.
*From:* Hans-Christoph Steiner [mailto:hans@eds.org] *Sent:* 11 April 2008 18:30 *To:* nick burge *Cc:* Pd List *Subject:* Re: [PD] pduino and FSRs
Let's keep this on the list since it could be generally useful.
In order to get to the next step, you should try to isolate the problem, to see where the crash is actually happening. Otherwise, there are far too many possibilities for me to try guessing. Ideally, you could make a simple patch that reproduces the crash.
.hc
On Apr 11, 2008, at 3:01 AM, nick burge wrote:
Firmata, Pduino and xbees. are all set to communicate at 19200 baud. Nick
*From:* Hans-Christoph Steiner [mailto:hans@eds.org] *Sent:* 10 April 2008 23:57 *To:* nick burge *Cc:* Pd List *Subject:* Re: [PD] pduino and FSRs
What baud are you running each at? IIRC, the XBee needs a strange value.
.hc On Apr 10, 2008, at 5:52 PM, nick burge wrote:
I wish I knew. I'm loading the arduino-test patch with no other objects or abstractions so as to eliminate other suspects. Still PD crashes when I enable more than 2 analogIns. Would it help to speed up or slow down the xbee connection?
*From:* Hans-Christoph Steiner [mailto:hans@eds.org] *Sent:* 10 April 2008 23:12 *To:* nick burge *Cc:* Pd List *Subject:* Re: [PD] pduino and FSRs
The code and the electrics are quite separate. If the electrics work with one firmware, then they'll work with another. The question is, what is the "it" that grinds to a halt.
.hc
On Apr 10, 2008, at 4:17 PM, nick burge wrote: > Yes, I've got the latest version....maybe a silly question...but > could it be that Pduino is optimised for sensors working on a > supply of 5v. because the phidget voltage dividers i've got my FSRs > attached to come with a potentiometer that alters the resistance of > the circuit...with pduino i can only activate 2 at a time before it > all grinds to a halt...on arduino2PD i can activate all six without > any problem. Strange. > Nick. > > ------------------------------------------------------------------------ > *From:* Hans-Christoph Steiner [mailto:hans@eds.org] > *Sent:* 10 April 2008 21:51 > *To:* nick burge > *Cc:* Pd List > *Subject:* Re: [PD] pduino and FSRs > > > I've never run on Vista before, so I can't say much about that. I > have run on Debian, Ubuntu, and Mac OS X. It shouldn't matter what > is generating the data on the arduino, the messages coming to Pd > via the serial port should be all the same. > > Are you using the latest version: > http://at.or.at/hans/pd/Pduino-0.3.1.zip > > .hc > > On Apr 10, 2008, at 12:57 PM, nick burge wrote: >> Hello Hans-Christoph, I am using PD 0.39.3 extended. on a windows >> vista system. Its PD that crashes, or "stops working" as Vista so >> nicely puts it, when I connect the FSRs. >> I have arduino connecting via wireless xbees at 19200 baud. >> I also use an infra red distance sensor that gives no problem. >> I've been routing the data from the FSRs through the autoscale object. >> Maybe I should find a way to reduce the amount of data being >> sampled...every 40ms for example? How would I do that? >> Nick. >> ------------------------------------------------------------------------ >> *From:* Hans-Christoph Steiner [mailto:hans@eds.org] >> *Sent:* 10 April 2008 17:25 >> *To:* nick burge >> *Cc:* Pd List >> *Subject:* Re: [PD] pduino and FSRs >> >> >> Which program crashes? Which version are you using? You will get a >> lot of data, from 6 sensors, Pduino/Firmata will read them all >> every 20ms. I have never seen a crash using [arduino], except when >> I unplug the arduino when Pd is connected to it, so I suspect the >> problem lies elsewhere. >> >> .hc >> >> On Apr 10, 2008, at 11:16 AM, nick burge wrote: >>> I have a little problem using Pduino and some force sensing >>> resistors that I am using in conjunction with phidget voltage >>> dividers....they seem to crash the program as soon as I activate >>> more than 1 at a time..... >>> Should I be applying some sort of filter to the data stream? >>> Arduino2PD seems more robust, allowing me to activate all 6 >>> analog inputs at once. >>> Nick Burge. >>> _______________________________________________ >>> PD-list@iem.at mailto:PD-list@iem.at mailing list >>> UNSUBSCRIBE and account-management -> >>> http://lists.puredata.info/listinfo/pd-list >> >> ---------------------------------------------------------------------------- >> >> Looking at things from a more basic level, you can come up with a >> more direct solution... It may sound small in theory, but it in >> practice, it can change entire economies. - Amy Smith >> >> > > ---------------------------------------------------------------------------- > > There is no way to peace, peace is the way. -A.J. Muste > >
There is no way to peace, peace is the way. -A.J. Muste
Mistrust authority - promote decentralization. - the hacker ethic
All mankind is of one author, and is one volume; when one man dies, one chapter is not torn out of the book, but translated into a better language; and every chapter must be so translated.... -John Donne
You can't steal a gift. Bird gave the world his music, and if you can hear it, you can have it. - Dizzy Gillespie
PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Derek Holzer wrote:
This makes sense. I used some FSRs with a hacked joystick HID device and got into some trouble there as well. FSRs have zero resistance when no force is applied, so essentially you are short circuiting the 5v directly to ground when you plug them in without any force applied. I would definitely try a resistor in series with each FSR, that's how I did it with the HID joystick, which also crashed (the joystick did not function) when the FSR was plugged in without any resistance.
FSR have a very _high_ resistance with no force. The resistance goes down when you apply pressure. The circuit needs to look like this:
5V | 10k | +------analog in | FSR | Ground
This will give a number that goes down as force is applied. If you want the number to increase, switch the 10k and FSR.
Looking at the (considerably more expensive than a 10k resistor) phidget voltage divider I see that the resistance is a multi-turn 1Meg potentiometer. If it is set to zero ohms then pressing a sensor will short out the power supply. Also by convention the red wire is 5V, the black wire is ground and the white is the analog signal.
Martin
Hello Martin, you are absolutely spot on here. In fact I want the numbers to go up as I apply pressure so I've swapped the fsr and 10k as you suggest and all works perfectly. No need for the expensive voltage divider then and more difficult to calibrate several of them equally when a 10k resistor does the job. Thank you to everybody on pd list who have helped me sort this out. Nick.
FSR have a very _high_ resistance with no force. The resistance goes down when you apply pressure. The circuit needs to look like this:
5V | 10k | +------analog in | FSR | Ground
This will give a number that goes down as force is applied. If you want the number to increase, switch the 10k and FSR.
Looking at the (considerably more expensive than a 10k resistor) phidget voltage divider I see that the resistance is a multi-turn 1Meg potentiometer. If it is set to zero ohms then pressing a sensor will short out the power supply. Also by convention the red wire is 5V, the black wire is ground and the white is the analog signal.
Martin
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Derek Holzer -
Hans-Christoph Steiner -
marius schebella -
Martin Peach -
nick burge