ESP32 and TLV493D Magnetometer

Having spent the last two months struggling with setting up this magnetometer, I figured I should put my findings together to help anyone else who is also trying to use these devices together.

Code #

void setup() {

  Serial.begin(115200);

  while(!Serial);

  Tlv493dMagnetic3DSensor.begin();

  Tlv493dMagnetic3DSensor.setAccessMode(Tlv493dMagnetic3DSensor.FASTMODE);

  Tlv493dMagnetic3DSensor.enableInterrupt();

  // the interrupt is indicated with a short(1.5 us) low pulse on SCL when new results are ready to read

  Wire.setClock(1000000);

  // Set I2C clock speed to 1MHz (Fast Mode Plus)

  Tlv493dMagnetic3DSensor.disableTemp();

  pinMode(INTERRUPT_PIN, INPUT);

  // sets the interrupt pin 2 as input

  pinMode(22, INPUT);

  // sets the SCL pin 22 as input

  attachInterrupt(digitalPinToInterrupt(INTERRUPT_PIN), onRead, FALLING);

  // not sure whether to use LOW or FALLING
  
}

Published 24 Aug 2021