Wide Voltage Decoding Receiver Module 4 Channel Learning Remote Control Modules for PT2272 Item Type: Wide Voltage Decoding Receiver Module Size: Approx. 18.8 x 14.8 x 5mm / 0.74 x 0.58 x 0.20in Technical Parameter: 2. Working Current: 3.5mA (433MHz Fully Working) 3. Modulation Method: ASK 0OK 4. Receiving Sensitivity: -108dBm 5. Data Rate: Up to 10kpbs 6. The Drive Capacity of Each I0 Port: <20mA 7. Operating Temperature Range: -40-85℃ Pin Function Description: VT: Learning button input terminal and decoding valid output terminal, output low level when decoding is valid, otherwise is high yang input state D3: Data Output Terminal D3 Channel D2: Data Output Terminal D2 Channel D1: Data Output Terminal D11 Channel D0: Data Output Terminal D0 Channel VCC: Positive Power Supply GND: Negative Power Supply Working Mode Description: 1. Self Locking (T4): 4 independent outputs without mutual influence. Each time press the launches button, the output state of the corresponding output terminal is reversed once, with VT pulse output, for example, the data of the A button is 0010, then is not pressed once the A key is pressed, the state of the D1 channel is flipped once 2. Jog (M4): Press the launches button, the corresponding output terminal will output high level, and return to low level after stopping transmission, with VVIT pulse output 3. Interlock (H4): Press the launches button, the corresponding one channel outputs high level, all other channels all low level, and keep until the following time the remote control data changes, the valid signal is identified by judging the T pulse, for example, the data codes of the button is 1000, then the D3 channel is high level, and the others are low level. If the data codes has multiple bits of high level, determined according to the high bit of the output high level, for example, the data of button 1 , the codes is 0111. According to the above principle, the output of channel D2 is high level, and the others are low level.