nLab video library build electronics, change the world. Skip to Videos All Kit 1 Videos | Level 1: Build a Light! | Level 2: Design a Circuit! | Level 3: Build a Thermometer! (Releasing Now!) | Level 4: Build a Motion Detector! (Filming now!) | Level 5: Build a Microphone! (Coming Soon!) | Level 6: Build a Heartbeat Monitor! (Coming Soon!) | Level 2: Design a Circuit!, 1/26/25 How to Use a Breadboard Level 2: Design a Circuit!, 1/26/25 What is a Resistor? Level 2: Design a Circuit!, 1/26/25 Ohm's Law! Level 2: Design a Circuit!, 1/26/25 How to Read Resistor Color Codes Level 2: Design a Circuit!, 1/26/25 Circuit Diagrams Level 2: Design a Circuit!, 1/26/25 Electrical Engineering in Product Design Level 2: Design a Circuit!, 1/26/25 Bloopers! Kit 1 Level 2