digital magnetic compass

MHC5883L 3-axis digital compass board. Before you start, make sure that you have: Arduino uno HMC5883L sensor board Nokia 5110 display (pcb version) 2x push-button 1x on/off switch (you can use breadboard to build it easier) I prefer to build my own arduino based circuit by using the ATmega328p uno possessor, but this is optional […]