Tag Archives: voltmeter compass

Arduino, HMC5883L, and a Voltmeter: Voltmeter Compass

I recently purchased an AdaFruit HMC5883L Compass Breakout board for $10: It’s a simple device. It will work with 3.3V and 5V, and  uses I2C for communications. Interfacing with an Arduino is very easy. I have a project in the … Continue reading

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