Copilotfree, in-browser
Ask me anything about your lessons or your code.
“What is a port?” · “Why is my code erroring?”
Ask me anything about your lessons or your code.
“What is a port?” · “Why is my code erroring?”
Connect a battery to a wire and charge starts moving: voltage, current, resistance, and the one equation that links all three.
What Electricity Is
Connect a battery to a wire and charge starts moving: voltage, current, resistance, and the one equation that links all three.
Components and Schematics
The handful of parts every circuit is built from, and how to read the drawing that wires them together.
Your First Circuit
A schematic on paper becomes a lit LED on a real breadboard: what a breadboard connects, how to size the one resistor that matters, and how to check the result with a meter.
Microcontrollers and Arduino
A microcontroller is a tiny computer that can switch its own pins on and off: what that means, and the sketch that makes one blink an LED.
Inputs, Outputs, and Sensors
A board that only blinks is a timer; sensing a button, a knob, or the light in the room is what makes it react.