Additional simple TV remote control circuit (LM555, CD4017)

Published:2011/8/26 1:45:00 Author:TaoXi | Keyword: Additional, simple, TV, remote control | From:SeekIC

The additional simple TV remote control circuit is as shown in the figure. This circuit is composed of the launch circuit and the receiving circuit. The core of the launch circuit is the astable multivibrator which is composed of the time-base circuit 555 and the R2, W, C2, the oscillation frequency is decided by the R2, W, C2. The receiving circuit is composed of the amplification, rectification, counter circuit. The IC(CD4017) is the decimal counter/pulse distributor. The pin-9 outputs the Q8 and adds it to the pin-15 of the reset port. The CD4017 will output the Q0～Q7 which have the high level.



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