RuggedCircuits

RuggedCircuits -- are you looking for capture of incoming signals or are you looking to do something low-level with the PWM itself? As far as incoming signals, one of the community members already built an infrared decoder (RC6 I believe) using the InterruptPort and the DateTime passed into its event handler.

Chris

That sounds like a reasonable option but better would be a class that implements an "InputCapture" functionality so that input edges are timestamped. That's the approach we use with our demonstration IR decoder software for the Arduino. I'm fairly sure the AT91SAM7X512 processor can have its timers configured for this type of capture mode.

You need to step down the analog input voltage. Netduino's microcontroller can take inputs from 0V-3.3V.

Chris

The I/O pins on the AT91SAM7X512 are 5V-tolerant. There will not be any damage to the microcontroller from voltages up to 5V. Also, the analog voltage sources on the Gadget Shield have large series resistances thus will limit the current to safe values in all cases. No modifications to the board should be required.