@mustafa98s I don't recommend you do this... it will make you mentally broken

@Trifunik there is a script use to build Debian image https://github.com/m5stack/CoreMP135_buildroot-external-st/blob/st/2023.02.10/tools/creat_coremp135_debian12_image.sh

@俺がガンダムだ Look at the definition of TwoWire, number should be fixed

@kuriko I’ve started writing a guide for it using the gimp image editor and the sample will be online nr Christmas (I hope)

@ajb2k3 i think the guide is quite enough, M5 already have it in documents. all i did was transplant the code for StickCPlus to StickCPlus2 and so...yeah https://github.com/kur1k0/M5-RoverC-for-StickCPlus2.git

@felmue Hi, felix i got it working finally. The issue is, on platformIO the library Arduinomodbus library and ArduinoRS485 library are the arduino ones and not the m5stack ones which is why i was getting error. A fix to this was to just replace the internal files of library to the m5stack ones from github. Thank you for the help.

The UnitV/StickV (K210) Devices are serial devices. You need the MaixPy IDE to program and preview. The UnitV2 Devices are small Linux Computers and have a USB- and WiFi Network interface.

Hello @Pajdzian I measure about 62 mA charging current (at the battery) when using M5Launcher and the same amount when running Cardputer UIFlow2 or Demo firmware (the one preloaded). So I am curious: what other firmware did give you a slower charging rate? Thanks Felix

@PhilB79 said in M5CoreS3: "ERROR Device type unknown" when trying to connect both CoreS3 and CoreS3 SE to Server.: @teastain UIflow 2 / Select device / RED dot next to the CoreS3 graphic. Same applies to CoreS3 silly question but you are logged in to Uiflow2 with same login credentials as in M5Burner (bind)

@aitech Dont' throw that sensor away yet. There is an error in the ENV_Pro demo code: Line 51 should read Wire.begin(); After changing that it worked fine for me. The interface address for the sensor is actually defined on line 57. Pretty impressive sensor.

@ddhard I was thinking of using https://shop.m5stack.com/products/esp32-ethernet-unit-with-poe in terms of space. programming with UIFlow or Arduino IDE but I didn't see the esp32-ethernet-unit-with-poe controller in the UIFLOW list.

Even when connecting the M5Dial to USB while holding the rear boot button, only one COM port is displayed. It’s unusual if two ports are not displayed, right?

@kdshawee87 Is there a possibility that it is conflicting with the Arduino macro? #define min(a,b) ((a)<(b)?(a):(b)) This is a rough way of writing it, but in the header #include <M5EPD.h> #include <Settimino.h> #undef min Will it compile if I undef it? However, in this case, the standard min cannot be used in this file.

@NVERD I have burned my camera with the latest firmware (1.1.0) and the the long press on the side to get access to the config does not work by me either. But if I burn it with version 1.0.0 the long press works: [image: 1725882929149-ab6e1815-ac1a-44af-b7bd-215ecdd804ad-image.png] However, if you can see an IP on the serial interface you have probably connected the camera to a network with a DHCP and you should be able to stream if your PC is connected to the same network. But note that the urls are: http://<CAM_IP>/stream for v 1.0.0. and http://<CAM_IP>/ for v 1.1.0.

Hello @Kris thank you for sharing your solution. With 5 V supplied from an external power supply I actually measure about 4.7 V going to the SIM800L due to the voltage drop of diode D1. But yes, that is still out of the specified VBAT absolute maximum rating of 4.5 V. Thanks Felix

@zhiyongwoo Ahh sorry I read it as CoreMP135 not CM4stack. If it works on another CM4 then it could be something in the Kernel. Have you asked on the RPI forums ? It could be a power issue, have you checked out this discussion? https://forums.raspberrypi.com/viewtopic.php?t=350942

@nzmikec said in EXT unit to measure engine RPM: ..... i2c device to count these pulses and send my device an RPM value. What is the device you're going to use to receive the values on I2C? Maximum RPM (and pulses per minute) would be 11,000RPM. Maybe you don't need an external device for counting. 11,000 RPM with 1 pulse pr revolution is about 190 Hz which an ESP32 should be able to count directly by it self via one of its GPIO's.