Hi everyone! I'm trying to read some PWM signals off a radio receiver using a Due.
My oscilloscope says I'm around 55Hz, with a VMax of 3.3v, which matches the logic level of the Due.
Here's a picture of the wiring.
Very simple, signal wire to pin. Shared ground. The pins coming off are for the oscilloscope.
I've added a few debug messages here and there and it looks like the interrupts are not being called at all. Any ideas?