5 lessons
PIR Motion Sensor
Detecting motion and building a smart security system.
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 PIR Sensor — Detecting Motion
Sensing movement before you even see it 🕵️
Ready to start Code
Lesson 2: Motion-Activated Light (LED)
Let there be light — automatically 💡
Locked — finish the previous lesson Code
Lesson 3: Motion Alarm (Buzzer + LED)
When something moves, everyone knows 🚨
Locked — finish the previous lesson Code
Lesson 4: Smart Light with Delay (Auto-Off Timer)
Stay lit a little longer ⏳💡
Locked — finish the previous lesson Code
Lesson 5: Smart Security System (Mini Project)
Arm it, and let it watch 🛡️
Locked — finish the previous lesson Code