Sunday, July 5, 2015

Automatic Upper Dipper Light Control

Driving the highway with your high-beam headlights can really increase your visibility, but can be a blinding hazard for other drivers. This simple circuit can be wired into your headlight switch to provide automatic switching between high and low beam headlights when there is oncoming traffic. It does this by sensing the lights of that traffic. In this way, you can drive safely with your high-beams on without blinding other drivers.

Circuit Diagram:

Components Required:
1. 2N2222  Transistor
2. 10K Ohm 1/4 Watt Resistor
3. 12V Relay
4. LDR

Note: LDR should me mounted in such a way so it points toward the front of the car with a clear line of site. Suitable places are on the dashboard, in the front grill, etc.

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