Toy car circuit controlled by TV remote controller

Published:2011/10/20 21:47:00 Author:Rebekka | Keyword: TV remote controller , toy car circuit | From:SeekIC

P10 ~ P17 are connected to LED for 8 gear speed display; P3.5, P3.7 control the motor's moving, andthe advance and retreat can not be inlow level, the output period of the width modulated square wave is 80ms. The power transistor is decided by the motor current. The + , - keys of remote controller control the advance and retreat programs. Volume keys are used for acceleration and deceleration, and the power button is used for parking control. Remote control distance is 10 meters, and required furniture will not be blocked. This circuit is a good power supply polarity switching circuit, and the voltage drops on the power loss is very small, simple and practical.



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