This version uses two microcontrollers – an Arduino Micro and a Teensy 3.0 – to greatly expand upon the previous build. Now, instead of just fishing, [dekuNukem]’s project can automatically ...

The potentiometer simulates throttle control. Its analog value is mapped to a speed value (0–120 km/h). Simultaneously, the alcohol sensor reads gas levels. If alcohol is detected above a set ...

Timbre is determined by the waveform of the sound wave. In this example, we use PWM to control the buzzer to emit sound with desired tone. As PWM outputs square wave, if we wish to emit tone C4 ...