5 lessons
Relay
Switching high power safely with low-power signals.
Your progress5 lessons
Lesson list
Work through these in order — finishing one unlocks the next. Complete them all and you earn 500 XP.
1
Lesson 1: Meet the Relay — Switching High Power with Low Power
A tiny signal that controls a big device ⚡🔌
Ready to start Code
Lesson 2: Button-Controlled Relay
One press, one switch flip 🔘⚡
Locked — finish the previous lesson Code
Lesson 3: Multiple Relays (Control Multiple Devices)
One board, many devices ⚡⚡
Locked — finish the previous lesson Code
Lesson 4: Sensor-Controlled Relay (Automation)
Let the sensor flip the switch 🌗⚡
Locked — finish the previous lesson Code
Lesson 5: Remote-Controlled Relay (BLE or WiFi)
Control power from anywhere 📱🌐
Locked — finish the previous lesson Code