Freetronics Security Sensor Shield
Photo: Jonathan Oxer
Shield URL: Security Sensor Shield
Tags: sensor, input, security, pir, motion
This shield allows up to 4 security sensors to be connected to an Arduino with full End-Of-Line (EOL) support to detect tampering with the sensors or cable. End-Of-Line technology allows the system to detect a variety of events using a single cable pair to the sensor, including:
- Sensor triggered.
- Sensor cable cut.
- Sensor cable short-circuited.
- Sensor housing opened (even when system is disarmed)
Supported sensor types include:
- PIR (passive infrared) motion detectors.
- Microwave motion detectors.
- Reed switches.
- Glass break detectors.
- Gas detectors.
- Smoke detectors.
The circuit is based on the "Security Sensors" project in the book "Practical Arduino".
Open Source: Yes, OSHW-compliant
License: TAPR Open Hardware License
A0: Channel "A" input.
A1: Channel "B" input.
A2: Channel "C" input.
A3: Channel "D" input.
D4: Channel "A" status LED.
D5: Channel "B" status LED.
D6: Channel "C" status LED.
D7: Channel "D" status LED.