@m5stack It works now as expected.

Hello @ckuehnel I did some experiments with the ATECC608A version in the M5Core2 AWS kit. Using the aforementioned libraries with I2C address 0x35 I can make it wake up and read information from it. However for me it did not show up using an I2C scan, even after waking it. From the full datasheet I understand that 0x35 is the default I2C address which can be modified exactly once to something different. Looks like that has not yet happened with the ATECC608A in my M5Core2 AWS kit. In contrast the M5Stack ID Unit uses the ATECC608B version for which I was not able to find the full datasheet (it looks like it requires an NDA). I assume that either the same mechanism exists regarding I2C address for the B version and 0x60 is the default or it already has been modified from 0x35 to 0x60 by M5Stack. (I don't have the M5Stack ID Unit so I cannot confirm whether it uses 0x35 or 0x60.) Thanks Felix

@ganeyvim Type B

Seem ok now

Try using a PAhub but it could be a power issue.

Ok i kept trying it and despite the leds not showing like the video evenutally it did work. Not sure if it a co-incidence or not but for other people it worked when i was powering it up direct from a usb charger as opposed to plugged into my macbook usb c port

@m5stack Why is this link dead?

Hey, guys. I hear the same sound whether we make an RFID module, USB module or GPS module. When communicating with any of them, the sound is heard. And in my opinion, it is not the sound from the speaker, because it can be heard even if I turn off the speaker software (and even if I disconnect it completely). The beeping is coming from some components...

Hello @microdynasty I think in UIFlow, when a unit is added, part of the internal initialization, e.g. what's happening when below line is executed, is to check for the two sensors in the ENV III unit, which in your case results in the I2C error. env20 = unit.get(unit.ENV2, unit.PORTA) Hmm, I can see what you mean about ENV III being compatible, but I wonder if M5Stack meant after ENV III has been added in UIFlow? Sorry, I don't know enough about MicroPython to help you, but maybe have a look at the Arduino example to get an idea about the I2C commands required to read data from that sensor? Good luck! Thanks Felix

@ganeyvim said in "m5stacks core" Compatible units: rf433 Have you tried digikey? https://www.digikey.com/en/products/filter/rf-evaluation-and-development-kits-boards/859?s=N4IgjCBcoLQdIDGUBmBDANgZwKYBoQB7KAbRACZKIBdAX1oPNJAFsBWLAFzUQGsQ6QA

@gaviota The M5camera (as apposed to the M5Timer camera) has firmware programmed under arduino and so you need to install arduino and the camera libraries to reprogram the firmware.

@felmue Thank you so much, you've saved me hours of trawling.