Introduction - If you have any usage issues, please Google them yourself
Abstract reversing radar car parking or reversing the safety of assistive devices, and to inform the driver around the obstacle to the sound or a more intuitive display, the lifting of the driver parking, reversing and start the vehicle around to visit troubled, and to help the driver to remove a vision of dead ends and blurred vision defects and improve driving safety. This design uses ATMEL Corporation AT89C51 microcontroller, ultrasonic sensors ranging ultrasonic parking sensor. LED and light-emitting diodes, said that whether there are obstacles within the sensor detection range, when there is an obstacle in the detection range, the LED flashing in a certain frequency, the flicker frequency is set to distance, the closer the higher the frequency. At the same time, the buzzer alarm, detection, and indicate the obstacle distance.