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  Hello I was hoping if I could get some help with compatibility/feasibility check with my configuration.

  ESP32 Ethernet Unit with PoE + Grove2Grove Expansion Unit connected to

  Mini CAN Unit I/O Hub 1 to 6 Expansion Unit Will I/O hub interfere with CAN unit? Is the Grove2Grove unit necessary or can I just hook the two units up in parallel (if I don't need on/off + current meter)
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  You need a computer with internet access to configure the M5GO

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  I've managed to read button clicks from M5Unit 8Servos.

  Here is how i connected the button to the unit.
  IMG_1089.JPG
  IMG_1090.JPG

  I've managed to read button click from M5Unit 8Servos with this code.
  I'm using an M5Stack AtomS3 Lite.

  #include <Arduino.h> #include <M5Unified.h> #include <Wire.h> #include <M5_UNIT_8SERVO.h> #define SERVO_PIN 0 #define START_BUTTON_PIN 1 // put variables here: M5_UNIT_8SERVO unit_8servo; bool btnState; unsigned long btnClieckedMs; // put function declarations here: void setup() { M5.begin(); Serial.begin(115200); Serial.println("### Setup - start"); while (!unit_8servo.begin(&Wire, G2, G1, M5_UNIT_8SERVO_DEFAULT_ADDR)) { Serial.println("extio Connect Error"); delay(100); } //unit_8servo.setAllPinMode(SERVO_CTL_MODE); unit_8servo.setOnePinMode(SERVO_PIN, SERVO_CTL_MODE); unit_8servo.setOnePinMode(START_BUTTON_PIN, DIGITAL_INPUT_MODE); btnState = false; Serial.println("### Setup - end"); } void loop() { bool prevBtnState = btnState; // save last state for comparison btnState = unit_8servo.getDigitalInput(START_BUTTON_PIN); // read new state if(prevBtnState == false && btnState == true) { // if state has changed btnClieckedMs = millis(); // save millis } else if(prevBtnState == true && btnState == false) { // if state has changed again if(millis() - btnClieckedMs > 50) { // check how long it took from 'false' to 'true' (debounce) Serial.print("Button clicked "); // do some fancy things when button clicked Serial.println(btnClieckedMs); } } }
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  Core2 for AWS M5Stack Fire M5stack Grey M5 Stick/StickC M5GO FACES Kit M5Stick V Core 2
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  @Emii214 you need to learn about programming but the first firmware you should have been using is UIFlow2

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  @alien This is an intersting issue. Following....

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  For topics on the M5Stack Atom.

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  @Kees The Voltmeter measures the peak voltage and so pulses of 3.3 would measure as 3.3V despite the pulse width.