Hello @alex9

it looks like yes, GPIO0 is TX pin for RS485. See pinmap here.

The platformio.ini example can be found here.

Running a quick search I did not find an RS485 example, sorry.

Edit: Maybe try this RS485 library.

Thanks
Felix

Hello @JohnSal

I think you only need to add one RGB unit but with number set to 6 instead of 3.

Thanks
Felix

Hello @HappyUser

just curious, which SIM module did you settle on?

Thanks
Felix

Hello @hotellonely

yes, it looks like the drop-down box needs fixing. In the mean time you can use all GPOs on the 14 pin header via some custom code blocks.

I created an example in UIFlow2 Project Zone called M5CardputerAdv_ExtPin_Test_UIFlow2.4.2

Thanks
Felix

@kuriko

In case you're still looking for working example, I just build custom firmware and got the camera driver working. See https://github.com/hbentel/M5Stack-Unit-CamS3-5MP

7e5ce5b2-8d9d-48f9-ae34-7fa5884c1e12-image.png

@claudiu
Same happen with me..I used another laptop for login and problem resolved of loginitalicised text

@Morle
not sure but i see 2 diff versions here what is burned to what is running on your machine locally

is all fine with uiflow 2 online version?

uiflow1.JPG

uiflow.JPG

截至2026年2月13日，M5burner中，yarnell已经上传了xiaozhi的adv版本固件V2.2.2。