Microcontroller Basics: Pins, PWM and Signals, Simplified

Whether it's an Arduino Uno or an ESP32, the same few ideas come up again and again: digital and analog pins, PWM, and how to read a sensor.

Words to know

PWM (pulse-width modulation)
Think of it like flicking a fan switch on and off very quickly.
Analog and digital
Think of it like a light switch versus a dimmer knob.
Microcontroller
Think of it like a small brain with hands and eyes.

Lessons (12)