Tuesday, October 10, 2017

Circuit Diagram RF based Home Automation using 8051

Robotronicdiagram. - This is one application of microcontroller based on 8051 to make you easy at home to controll your many appliance househole in this time. With combine your microcontroller with RF communication transmitter and receiver and with relay to switch on and off the electrical, now you can create the home automation easily.

In this article, we will show you the circuit diagram of RF based home automation using 8051 microcontroller. In this circuit diagram devided into two parts these are the transmitter and reciever circuit look like the Figure 1 and Figure 2. Beside that we also will show you the component parts and the global description of this circuit diagram according the original source description. 

Circuit Diagram 

Component Part
  1. AT89C51 Microcontroller
  2. 8051 programming board
  3. Electrolytic capacitor – 10µF, 16V
  4. 10KΩ Resistor x 2
  5. Push button
  6. 11.0592 MHz crystal
  7. 22pF capacitors x 2
  8. 1KΩ x 8 Resistor Pack
  9. Pot – 10KΩ
  10. 434 MHz RF Receiver Module
  11. HT-12D Decoder IC
  12. 33KΩ Resistor
  13. LED
  14. Connecting wires
  15. 1N4007 Diode
  16. 2N2222 NPN Transistor
  17. 1KΩ Resistor
  18. 12V Relay
  19. 434 MHz RF Transmitter Module
  20. HT-12E Encoder IC
  21. 750KΩ Resistor
  22. Push Buttons x 4

Circuit diagram like in figure 1 above is Circuit Diagram RF based Home Automation using 8051. According Electronicshub site describe that the principle behind the RF based Home Automation circuit is based on the RF Communication between the RF modules.

RF Communication between the Transmitter and Receiver modules works on the principle of Serial Communication, which means the RF transmitter will send the data serially to the RF Receiver which is paired to it.

When any key is pressed in the transmitter section, a 4-bit data is read by the Encoder IC. This 4-bit parallel data is converted to serial data by the Encoder IC and this serial data is sent to the RF Transmitter.

The RF transmitter transmits this serial data using radio signals.

At the receiver side, the RF receiver receives the serial data using RF Communication. This serial data is sent to HT12D decoder IC. The Decoder IC converts the serial data into 4-bit parallel data and transmits it to the microcontroller.

The microcontroller will turn ON or OFF the loads according to the button pressed.

Please read more this article from original source about Circuit Diagram RF based Home Automation using 8051 using link Here.

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