Connected to gnd for enable comunication with the HT12Eġ0-13. This pin goes connected to VCC or our positive terminal of our power supply or batteryġ-8. This pin have to be connected to Data pin of our 433 Mhz RF transmitter.ġ8. In this ports it have to put a "oscillation resistor" very very important use the value of 1 M ohmġ7. Transmission enable, it can be done connecting this pin to GNDġ5-16. AD in this pins is for to transmiting data of 3 bits (in our case to the receptor)ġ4. Pin 1-8: Asignement of receiver direction, it mean it can changing of adresses for comunication individualy if is neededġ0-13.
The operation voltage of RF receiver is: (5v - 9v). The operation voltage of RF transmitter is : (3.3v - 5 v) The RF transmitter with and a good antenna can sent data up to 500 ft (outdoor and no osbtacles)