HI, I'm from myanmar starting using arduino.
i make a project with,HMC5883L ,20x4 LCD ,a 4x4 keypad and a BUZZER.These are to make a compuss to know heading degree and i input two degree from keypad (eg.34 ,90).when the compuss is exceed 34degree and 90degree,the buzzer alarm .what am i goon do?please teach me.(zinmeshinthant@gmail.com)