Thanks robski, yes indeed this was my problem. I hadn't updated my Atom S3 Lite with the latest firmware via M5Burner.
When I updated it to V2.0.1, the same as the latest UIFlow 2 version, it worked perfectly.
Thanks for your help.

The S3 series does not use an API code.
You need to log into M5Burner with your forum ID and password and then during the erase and burn process you will be asked to bind the Atom S3 to your account.

Once you agree and complete the burn process, load UIFlow2, log in (again using your forum username and password), Click on the device selector at the bottom of the screen and you will get a list of devices registered to your account.

I have almost all of them but in this case the M5Stick CPlus. It says IR is G9.

Hello @expjwt

according to the description the M5Atom can be powered from the 12 V.

A DC/DC voltage regulator chip is integrated in the ATOM RS-485, which can directly convert the 12V voltage of RS485 to 5V to supply power for M5ATOM, avoiding the trouble of using a separate power supply.

BTW: The 5 V on the header pin is connected to the 5 V on the Groove port. What voltage do you measure between 5 V and GND on the Groove port?

Thanks
Felix

@teastain Aahhh. Thanks! I'll know from now on! :D

Hello @burner

I do not have an M5AtomS3 Lite. But I tried the button example with an M5AtomS3 (which uses the same GPIO41 for the button) and it works for me. Care to share the code you tried where BtnA did not work?

Thanks
Felix

@magillus Did you ever solve this? I scanned the Factory Reset and now cannot
get the scanner to work with my code. A factory-fresh ATOM does still work.

But I too think there should be a way to disable QR codes. In particular, since the ATOM is
receiving the scanned QR - it should be up to the application to do what it wants with the scanned
value.

My sample arduino code is at: M5 Atom Testing

UPDATE It seems there is a prohibit scanning of configuration modes, as follows (and defined in their document Commands

uint8_t prohibit_scanning_config_mode_cmd[] = {0x07, 0xC6, 0x04, 0x08, 0x00, 0xEC, 0x00, 0xFE, 0x3B};

thanks,

Alternatively - using M5Unified you can also call:

M5.Display.sleep();

To wake it up again use:

M5.Display.wakeup();

@ajb2k3 said in ATOM S3, How to switch to online programming mode?:

By pressing the screen on boot
My case, This is to enter programing mode. not come back to App mode.
My version is UIFlow2.0 Alpha28. what version did you success this way?

M5Burner to get into app mode
This doesn't work.
I did following step. Please advice if the step is wrong.

Open M5 burner and select ATOM S3. Connect USB to ATOM S3, hold reset button dew second until internal LED turn on. Click "Configure" of UIFlow2.0 Change Boot option to "Run main.py directly" Click next to burning the setting once window shows "success", remove USB from Atom S3 and re-connect

After this step, the program does not start.
The window is just black screen.
What version of UIFlow are you using?

Hello @Filipe-Dias

have you tried this example with the commented out GPIOs?

Thanks
Felix

All esp’s are like modern controllers are only 3.3V tolerant, the 5v on the grove is for the grove Standered and for sensors that still require 5v.

What programming environment are you using?

@dawncold I also would like to know of any hid docs for the esp32s3

@felmue great! thank you so much for the data!