Help for the car parking sensor

This sensor circuit, p arking the car near the garage wall designed for security. D7 LED illuminates if bumper wall distance 20 cm. D7 + D6 illuminate approximately 10 cm and D7 D6 + D5 6 cm. In this way, you will be notified If approaches too close to the wall.

All distances between sensor can vary mentioned in this procedure, depending on the infrared emission and receive used organizations and are affected by the color of the surface significantly réfléchissante.Réduire Empfindlichkeit.Offensichtlich black device surfaces, can this circuit in other applications such as the level detection for liquids, proximity, etc devices.

Source: parking sensor support

More information: photoelectric detector