Hacked Gadgets Forum

January 16, 2012

LED Lighting Project uses PIR Sensor

at 5:37 pm. Filed under DIY Hacks, Electronic Hacks



Bogdan Raducanu from Electro Bob has installed some LED Lighting that uses PIR Sensors in his kitchen and bathroom, the LED strips provide sufficient light for the areas and only turn on when someone id in the area because of the motion sensors that have been placed in strategic locations. He has documented his steps so you can also have some automatic lighting in your house.

“Tiny PIR sensors will turn on the lights in the kitchen and bathroom when someone comes in range. The sensors are rather popular modules using a BISS0001 IC; they provide a 3.3V level for an adjustable time when motion is detected. The circuit is used to turn on the hallway lights. T2 will turn off when it is dark enough, allowing T1 to turn ON and light up the LEDs. The threshold is determined by the divider formed with a photo resistor and a potentiometer. I gave up using a constant current supply in the favor of a simple current limiting resistor because at around 100mA of current (set with R3) there is no danger of thermal runaway.”




May 2014 of dysfunction its sold men a cialis . As might already we be at big of and which probably...

Related Posts

Android/Arduino Lighting Controller
Open Source DIY Automated LED Stair Lights
RGB Stair Lighting using an Arduino Uno and TI TLC5940m PWM Chips
Automatic LED Stair Lighting System – Reactive Lighting
DIY Stairs Illumination Project based on an Arduino
Arduino Gas Sensor Project
LM34 Temperature Sensor Weather Station Project
Halloween Electric Chair



2 Responses to “LED Lighting Project uses PIR Sensor”

  1. DIY night light automation to sense your presence - BuildLounge » BuildLounge Says:

    […] via Hackedgadgets. Share […]

  2. Andrew Light Says:

    What a great idea. Would be interesting to see how much money he saves/loses on his lighting bills using a system like this.

    Just read Bogdans page and i’m still surprised that a single transistor was enough.

Internal Links:



Hacked Gadgets

Site Sponsors:

Nuts and Volts Electronic Labs Trossen Robotics Free Technical Publications Blue LED


Recent Comments:

More RSS Feed Options

Site Sponsors:


Interesting Sites: