Smart vehicle headlight with intensity control

This work proposes design of a vehicle headlight system that operates automatically as soon as the sun sets and adjusts the light intensity according to the required brightness to save the power. The system uses a light sensor, an ignition key, and a LED panel all controlled by a micro controller that is based on microcontroller STM 32 to achieve the output. Once the system is operated, it continuously keeps track of the external level of lighting. It regulates the intensity of the LED panel with the help of the MOSFET driver. LEDs glow at the appropriate intensity to get the required brightness while saving the power. The controller switches off the headlights as soon as the outdoor lighting increase. The controller even controls the lighting according to weather conditions. In case the driver unintentionally keeps the vehicle ignition on, the controller waits for 5 minutes to switch off the lights and avoid loss of battery.