Our project is a device installed on the car that can substantially help avoiding potential dangers when driving at night due to lack of light on the road. The reason why we decide to make this device is that driving at night can be dangerous because drivers can easily hit objects in the front at night when the road is dark. The device works as follows: there is one light sensor that keeps detecting the luminosity of the environment. The device is activated only when the luminosity drops below a certain value. An ultrasonic sensor is also included in this device that detects the distance between the car front and the objects in front of the car. When the device is activated(luminosity of the environment drops below a certain value) and there is an object too close to the car, the buzzer connected to the device will ring.