On Tue, 2023-04-18 at 14:29 +0200, rolfm@dds.nl wrote:
in my experience using a multimeter to test the working of pins on an Arduino is not always giving what you expect. i suggest to use e.g. a led to see if pins are on or off.
Actually, if the pins are set to 'output' mode, I don't see a reason not to trust a multimeter (assuming it is set to measure voltage).
Roman