1. What you will build
Create a motion-activated security alarm with arming/disarming.
Guided tutorial
Security System
Create a motion-activated security alarm with arming/disarming.
intermediate · 25 Sept 2026
Difficulty
intermediate
Learning complexity
Sections
6
Structured content blocks
Topics
10
Linked learning concepts
Related links
6
Next steps and references
2. Wire PIR
Connect PIR motion sensor to pin 2.
3. Add Controls
Wire arm/disarm button and status LEDs.
4. LCD Status
Display system status on LCD.
5. Arm Logic
Button toggles between armed and disarmed states.
6. Alarm Trigger
When armed, motion triggers loud alarm.
FAQ
Can I try Security System in the simulator?
Yes. Use the Open in Lab action to load the guided build in the browser-based simulator.
Next step
Open this tutorial in the lab
Load the guided build in Ayantrik Lab and follow the same components and steps inside the simulator.