1

PIR Motion Sensor

This Module looks for motion and when sensing it, will send out a signal. This signal will turn on a switch to turn on the LED Strip.

2

N-Channel MOSFET

The transistor is used as a switch to turn on and off the LEDs when receiving a signal from the Motion Sensor

3

LED Strip

When the PIR module senses motion, it tells the MOSFET to send voltage to the LED strip to brighten underneath the bed.

4

12V Power Supply

The power supply is used to power on the PIR Module and also will illuminate the LED strip when activated in the circuit.

5

Resistors

Current Limiting resistor to prevent short circuit in the project.

6

Feedback LED

This LED is optional but recommended to tell user when the circuit is active or not.

1

Setup Circuit based on Schematic

Using the Diagram, wire together the Motion Sensor to the MOSFET, LEDS and Power Supply. Supply can be a wall adapter (5VDC) or a battery pack. Click button for full image

2

Optional PCB

You can either follow the tutorial on or download the project files by clicking the download button.

3

Connection to LED Strip

Make sure you supply the Red to (+) for positive voltage and the Black Wire to (-) for negative voltage.

4

Using a MOSFET

When the signal voltage is received at the Gate (G) from the Motion sensor, this allows voltage to flow between the Source (S) and Drain (D). This will turn on the LED Strip.