Circuit diagram of car reversing alarm
This car ultrasonic reversing anti-collision alarm circuit adopts LM1812 and the time base circuit II controls the sending and receiving of LM1812 (LMl812 sends and receives). The control distance can be adjusted with a 5kΩ potentiometer, which can generally control 2--3m. The circuit is simple and available for learning.
WIFI Projector:
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