Pulse counter input and PWM output

The SED-M0x module provides a Pulse counter input or pulse width modulated output (PWM output).

NoteBoth functions use the same timer, therefore, you can only configure/use one or the other.

A Sedona “pulse” kit provides two components usable in a Sedona app to interface to this functionality, either:

On the Sedona dev board, related hardware pins for both functions are on the J4 Expansion Header, as follows:

Pulse counter input

To use, use pin 40 on the expansion header as ground, and pin 12 of the header for the input signal. The open circuit differential is about 3.2V above ground. A dry contact between these pins can be used for an input.

PWM output

To use, ground the PWM gate (pin 12 on expansion header) and use the output on header pin 14. Output is about 3V above ground.