Published:2011/6/14 2:52:00 Author:TaoXi | Keyword: Remote control, discoloration, droplight | From:SeekIC
Each time when you press the button, the mute signal output terminal MUTE will output the low-level voltage to make the external light emitting diode to flash one time as the output instruction. The coded signal is sent out by the MK5087's TONE port and this signal gets to the launch component TDC1808 through resistance R2; in the receiving circuit, the receiving & demodulation output signal of the TDC1809 receiving component is decoded by the YN9102 DTMF decoder, the binary code that is sent out by the D1~D4 ports (corresponding to the launch instruction encoding phase) can be controlled by the SCR, then SCR controls the 4 kinds of color of colored lights.
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