Rolling code radio remote control circuit (TH150/TH150A, B)

Relevant key device information applied in this article: TH150 H10 TH151A TH151B The internal structure of the LM358 rolling code encoding circuit is very complex, and its encoding method is also very unique, but its use method is the same as the digital encoding circuit, or even simpler. As shown in the figure, it is a radio remote control circuit composed of rolling code encoding and decoding circuits TH150/TH151A and B. Remote control transmitting circuit (composed of rolling encoding circuit and TH150 and transistor carrier frequency oscillator): Super regenerative wireless remote control receiving circuit (composed of rolling decoding circuit TH151A/B):