@felmue I think I found the issue; my deepsleep() call was inside a loop. Moving it outside the loop sorted it out.

@ajb2k3 I rewrite the all blocks, but still the error

Hello @Armin_PP the function is here. Line 390. It returns true if USB is connected and false otherwise. Thanks Felix

Hello @purpledread the three buttons at the bottom are emulated by buttons defined on the very edge of the touch screen (which physically goes a bit below the actual screen). Try something like this. Thanks Felix

Hi, I have tried to install the M5StackSDUpdater on my Core2 with no success, can you please point me to the good version that I should use for flashing and any modifications necessary for this model? Thanks Dave

@felmue thank you again. That helps me get organized.

@lesmalave Is it working now? As a test, I just tried to click that link and it did successfully download through the browser and then unzip on my machine.

Hello. Not sure if you managed to get this working yet, but if not, there is a ble library that ships with M5Stack Core2 Arduino install. #include <BLEDevice.h> on my computer this was installed at this location: .//Library/Arduino15/packages/m5stack/hardware/esp32/2.0.3/libraries/BLE/src/BLEDevice.h Hence I did not have to install the package separately. I have implemented a project using this just recently using a variety of BLE technology so confident that it works on at least my copy of Core2. If you go to the docs link from the library link you posted (https://github.com/nkolban/ESP32_BLE_Arduino) you can see that the project has now been directly incorporated into Arduino. The lib version you may have downloaded may be out of date. You can find BLEDevice.h/BLEDevice.cpp on your machine and check against the main Arduino source. Hope this helps?

Hello @macsbug, thank you very much! The workaround described in https://forum.m5stack.com/topic/3262/m5-btna-waspressed-conflicts-with-wifi did solve all my problems (even the second one).

Hello @iamjameshannam do you have a SIM card in your IoT Base CatM module? I did some testing and from within UiFlow it seems that as part of the module initialization (e.g. catmiot = module.get(module.CATMIOT)) an AT+CPIN? command is sent repeatedly (about every 6 seconds) until the module response is +CPIN: READY. Without SIM card the module response is ERROR which means the program flow is blocked forever. Thanks Felix

Hello @Javi check out this post. Thanks Felix

@alexanders thanks to you question, I have now added a paragraph about this to my book which will hopefully get an update by the end of the month!

Hello @simmoe I don't know why it does work with your other products, sorry. I think the UiFlow examples are made for quick testing functionality, e.g. via using Run option, which uses the already existing WiFi connection. But yes, I agree, it probably would make sense to include them in the examples. Thanks Felix

I'm not sure what changed but last year something did and you can only run one instance at a time connected to a controller. If you open a second connection to another controller it does in deed cause problems, which is a pain as I used to run two controllers at a time for testing.

Thank you @felmue I´ll try to use that.

@felmue Now got some useful readings of Volts using the following code. Not sure about accuracy due to logarithmic scale. I've tested it with an AA 1,5 battery as input signal, connecting GND and ADC pin 32. As I already use a GPS and an expansion board, so at the moment SDA pin 32 at Core2 unit is the only available choice. My code: execute: from machine import ADC adc=ADC(32) adc.atten(ADC.ATTN_11DB) while true (with blockly), execute: signal = int(adc.read()) if signal == 4095: signal = 0 percentage = float(signal / 4095 / 100) volts = float(3.9 * percentage * 100) label2 show volts (with blockly) Now getting 0 at idle connection and +- 1.5 V when testing it with an AA battery as analog signal.