I purchased the Radxa 25W PoE+ HAT module. I’m working with a Radxa Rock 3A board.
According to its datasheet,
https://docs.radxa.com/en/accessories/radxa-25w-poe
I should enable the “[*]Enable Radxa 25W PoE HAT” overlay.
This overlay doesn’t appear in my list.
I can’t activate the cooler.
I’ve tried manually activating the GPIOs, but without success.
If anyone could help me, I’d be very grateful.
Sincerely,
Those should be possible on radxa os, what system are You using?
There was program to control POE HAT for Rock 5B by @lanefu
Maybe You can give it a try:
Thanks for your reply. I’m using Radxa OS, as Armbian didn’t work when I tried to install it.
I’ve enabled the default PWM8, which has a pre-loaded PWM-fan, but I understand that this functionality is associated with the fan output on the board itself.
Reading the Poe HAT datasheet, PWM communication is provided by pin 33 of the header, and I don’t know which PWM it’s linked to on the Rock 3A.
I’ll keep investigating, thanks.