Electronics Fundamentals to ESP32

Circuits, Ohm's law and components first, then your first ESP32 builds. 10 short lessons, a quiz in each.

1. Electricity Fundamentals

1. Voltage, current and resistance - the three quantities
   What pushes charge, how much flows, and what holds it back.
2. Ohm's Law and power: V = IR, P = VI - locked
   The one equation that sizes resistors and checks power budgets.

2. Components

1. Resistors, LEDs and switches - your first real circuit - locked
   Size the resistor so the LED is bright but alive.
2. Capacitors, transistors and relays - control and storage - locked
   Smooth power, switch with a signal, and switch big loads safely.

3. Circuits and Tools

1. Series, parallel and the voltage divider - locked
   How voltage and current split - and how to make any voltage you need.
2. Breadboards, the multimeter and safe power - locked
   Build without soldering, measure without guessing, power without smoke.

4. ESP32

1. Meet the ESP32 - pins, power and GPIO - locked
   The chip you will build almost everything on, mapped.
2. Your first ESP32 build: blink an LED - locked
   Upload code, light a real LED, and understand every line.
3. Reading input: a button controls your LED - locked
   digitalRead, pull-ups, and your first real interaction.
4. What next: displays and sensors - locked
   Where this course points - screens, data, and the internet.