Somehow I managed to link S3 devices to my account by flashing Alpha-9 version of UIFlow firmware, instead of the newest one.

Atom uses a Pico D4 variant and probably lacks the resources needed of the full esp32’S found in the Core2 controller

@st998 no worries caught me out the first time

@kees No, its to do with the fact that not all browsers are written the same. for best results always use google chrome as its the most upto date with web development standards.

Then probably the fact that Atom S3 currently supports only tiny subset of UIFlow features should be made clearer in the product description. I bought an Atom Matrix for a DIY watering project, was fairly impressed with the device (and the whole M5Stack concept) and decided that small local display for current humidity etc would be even better. So I bought the new AtomS3 (described as supporting UIFlow development platform) and currently can't connect it neither to my Watering sensors nor the MQTT data collection server. I will switch my development back to the Matrix and will be looking forward to switch it again when the features I need will be supported in UIFlow 2

Good info; thanks everyone

@bstafford the on-board ADC of the ESP32 is notoriously inaccurate!

Finally got the notification today and put an order in. I was tempted to order a heap of them, but given they are obviously in short supply I ordered a minimal qty so I hope others can get some too. They look fantastic!

Added gpio_pullup_en(GPIO_NUM_32); Hasn't happened since.

@wwhite don’t know about circuit python but mainstream python can be installed using the Thonny IDE I have 1.19 running on M5Stamps at the moment but you have to remember that Mainsteam MP won’t have the M5Stack specific libraries

I will try the " craft approach ". The LED driver does not provide stable 12V, as it can be between 12 to 14.5V in a camper. And with your recommendations for diode and capacitor.