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 3: Build a Thermometer! (Releasing Now!), 1/26/25 All About Potentiometers! Level 3: Build a Thermometer! (Releasing Now!), 1/26/25 Resistors in Series! Level 3: Build a Thermometer! (Releasing Now!), 1/26/25 Resistors in Parallel! Level 3: Build a Thermometer! (Releasing Now!), 1/26/25 All About Thermistors!