&size(24){&color(darkgreen){''Pass through remote controller by Taifatech''};}; #navi(Taifatech) ~''CONTENTS'' #contents ---- ~''REFERENCES'' ---- **Waveforms of pass through[#cc0f1e1d] -CH1:RX[U1 143pin], CH2:TX[Q1 collector] -All (100ms/DIV) --Can't see 2nd code. #ref(wav-all.jpg) -RX (2ms/DIV) --IR receiver works well. #ref(wav-rx.jpg) -TX (2ms/DIV) --The codes were already modulated by 38kHz carrier. --The polarity was inverse, if the LED connects directly. The LED was turned on normally. --The TX clocks were slower than RX. #ref(wav-tx.jpg)