... 7 bits, respectively, VT, D3, D2, D1, D0, the +5 V and GND. VT is a valid signal high output pin ... , corresponding to the four data bits to the receiving board output pin D0, D1, D2, and D3 of. Press the buttons transmit signals, the corresponding data ... bit is output high. Four wiring instructions New 2262/2272 four-way wireless ...