Alarm with PIC 16F84

Discover a complete DIY alarm system built around the PIC 16F84 microcontroller.

This project includes detailed electrical diagrams, relay card schematics, and PCB layouts for both the alarm and relay circuits, allowing you to assemble a fully functional security system.

You’ll also find downloadable ASM and HEX code ready to program your PIC 16F84, making it easier to get started and test your alarm.

Key Features:

• Microcontroller: PIC 16F84
• Relay Control: Separate relay card with schematic and PCB layout
• PCB Files: Alarm PCB and Relay PCB ready for fabrication
• Code: ASM source and HEX file for programming

Tip: Always test the circuit with low-voltage power before connecting the final alarm system. Ensure proper isolation between the microcontroller and relay stages for safety.

Electrical Diagram

Relay Card Schematic

Relay Alarm PCB

Alarm PCB