Adityo Pratomo wrote:

Hi there everyone. Can anybody explain to me how the polling routine on firmata works when handling multiple sensors input? I'm trying to found out myself, but i still couldn't get it. Or is it actually not a polling at all?

I think arduino sends automatically, so no polling. whatever inputs are enabled/turned on, will automatically get sent by the firmata protocoll. I guess the rate is 50 times per seconds/every 20ms. and afaik the digital ins run in a separate loop that fire a message whenever there is a change.

marius.