The HMC5883L output just one fixed value, no matter how to move the board. the value vary every time power on, why? #include <Wire.h> #include <Adafruit_Sensor.h> #include <Adafruit_HMC5883_U.h> Adafruit_HMC5883_Unified mag = Adafruit_HMC5883_Unified(12345); void setup(void) { Serial.begin(9600…

mag.begin is missing. See the example: https://github.com/adafruit/Adafruit_HMC5883_Unified/blob/master/examples/magsensor/magsensor.ino

Why this HMC5883L just output fixed number?

system Closed December 30, 2021, 12:15am 6

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