In this instructional guide, we will demonstrate how to build a simple DIY Infrared (IR) motion detector using commonly available electronic components.
- The motion detector will utilize an IR sensor to detect motion and trigger an LED indicator. This project can be a fun and educational way to learn about basic electronics and sensor technology.
- When motion is detected, the IR sensor will send a signal to the base of the TIP32C transistor, allowing current to flow through the LED and illuminate it.
Instructions:
Step 1: Gather Components Ensure you have all the necessary components.
Step 2: Connect the IR Sensor
- Place the IR sensor module onto the breadboard.
- Connect the VCC pin of the IR sensor to the positive rail of the breadboard.
- Connect the GND pin of the IR sensor to the ground rail of the breadboard.
- Connect the OUT pin of the IR sensor to 1k ohms and to the base of the TIP32C
Step 3: Connect the LED
- Insert the LED into the breadboard, ensuring the longer leg (anode) is connected to the collector of the TIP32C
- Connect a 220 ohms resistor from the cathode (shorter leg) of the LED to the negative rail of the breadboard
Step 4: Connect the TIP32C Transistor
- Connect the base pin (rightmost pin) of the TIP32C transistor to 1k resistor
- Connect a 1k ohms resistor from the base pin of the TIP32C transistor to the OUT pin of the IR sensor.
- Connect the Emitter of the TIP32C to the positive rail of the power supply
Step 5: Power Supply
- Connect the positive terminal of the power supply (5V DC) to the positive rail of the breadboard.
- Connect the negative terminal of the power supply to the ground rail of the breadboard.
Step 6: Test the Circuit
- Apply power to the circuit.
- Adjust the sensitivity and time delay settings on the IR sensor module if needed.
