PWM driven LEDs on Thingy:52

RE: PWM driven LEDs on Thingy:52

ovrebekk — Tue, 15 Dec 2020 12:20:00 GMT

That is good news, I will consider this case resolved then 🙂

RE: PWM driven LEDs on Thingy:52

Grzegorz Blach — Mon, 14 Dec 2020 20:54:02 GMT

This patch does the job. Thanks.

RE: PWM driven LEDs on Thingy:52

ovrebekk — Mon, 14 Dec 2020 14:17:42 GMT

Hi again

When I started to look into this I realized the sx1509 library currently only allows for setting and clearing pins, not using the PWM functionality built into the sx1509 device.

A pull request has been created to add this functionality, but it is not yet pulled into the Zephyr master branch:

https://github.com/zephyrproject-rtos/zephyr/pull/28060

There is no exact date set for merging this PR, but according to the developer it should not be very far out.

Best regards
Torbjørn

RE: PWM driven LEDs on Thingy:52

ovrebekk — Thu, 10 Dec 2020 16:35:48 GMT

You would need to control these pins through the SX1509 I/O expander.

There is a library in Zephyr for SX1509, so it should be relatively straight forward to integrate this in your code.

I don't have time to test it today unfortunately, but I will set aside some time tomorrow to try it out.

Best regards
Torbjørn