1.When a logic HIGH is applied to the
Page 11 of 13

 DATA input, the oscillator runs producing a constant RF output carrier wave at 433.xx MHz and when the DATA input is taken to logic LOW, the oscillator stops.In the receiver side, It consists of a RF tuned circuit and a couple of OP Amps to amplify the received carrier wave from the transmitter.Place the 433 MHz RF receiver module in the breadboard to be connected with the second Arduino board.Connect data pin of the receiver to pin number 11 in Arduino board, then connect Vcc and GRD pins to 5V and GRD pins in the Arduino board, respectively.Use USB cable to connect between Arduino and your PC to upload the code for the receiver.2.3.