Digital code remote control switch circuit diagram

Published:2011/5/9 1:12:00 Author:Rebekka | Keyword: Digital code remote control switch | From:SeekIC

Digital code remote control switch circuit composed of digital codec MC145026/MC145027 andtiny radio transceivers M303S/M303R is shown as above. Press the transmitter button SA, the circuit start to work. The serial encoded signal outputs from MC145026 to 15 feet, passes the transmitter module M303S and shoots out. The receiver module M303R of receiving circuit receives the encoded signals and sends to the decoder MC145027. When the address code of the encoder and decoder are exactly the same, the decoding of MC145027 effectively instructs a high-side output pulse signal. The transistor VT turns on, the drive relay pulls in. The switch control function will be completed.



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