RF 433MHZ Radio Control Using HT12D HT12E | Making a Rf Remote Control Using HT12E & HT12D With 433mhz
DESCRIPTION
In this instructable i'll show you how to make a RADIO remote control using 433mhz transmitter receiver module with HT12E encode & HT12D decoder IC.
In this instructable you'll can send and receive data using very very cheap COMPONENTS LIKE : HT12E (ENCODER) and HT12D (DECODER) and a pair of Rf modules of 433 Mhz.
HT12E:
HT12D :
RF 433mhz:
3 push buttons
IC HT12D
IC HT12E
Hearders (male or female it doesn't care)
3 resistors with a value from (100 to 330) ohms
3 leds any color 3mm of diameter (miniature)
1 Megaohm resistor for IC of the transmitter (IMPORTANT)
a 68K or very very neraly resistor value for the receptor (IMPORTANT)
3 push buttons
Hearders (male or female it doesn't care)
3 resistors with a value from (100 to 330) ohms
3 leds any color 3mm of diameter (miniature)
1 Megaohm resistor for IC of the transmitter (IMPORTANT)
a 68K or very very neraly resistor value for the receptor (IMPORTANT)
The RF transmitter with and a good antenna can send data up to 100m (outdoor and no osbtacles).
operation voltage of RF transmitter is : (3.3v - 5 v)
Operation voltage of RF receiver is: (5v - 9v).
The operation voltage of RF transmitter is : (3.3v - 5 v)
PINOUT OF HT12E IC (ENCODER)
Pin 1-8: Asignement of receiver direction, it mean it can changing of adresses for comunication individualy if is needed
9. VSS connected to GND
10-13. AD in this pins is for to transmiting data of 3 bits (in our case to the receptor)
14. Transmission enable, it can be done connecting this pin to GND
15-16. In this ports it have to put a "oscillation resistor" very very important use the value of 1 M ohm
17. This pin have to be connected to Data pin of our 433 Mhz RF transmitter.
18. This pin goes connected to VCC or our positive terminal of our power supply or battery
PINOUT OF HT12D IC (DECODER)
1-8. Connected to gnd for enable comunication with the HT12E
9. VSS this pin goes to GND.
10-13. "AD" the IC use this pins for the output data that is sended with the transmitter, in our case leds for indicating receiving info and direct output for to connect a relay or anything you want.
14. "DIN" this pin goes connected to DATA of our 433 Mhz RF receiver.
15-16. In this ports goes connected a resistor with a value of 68 k ohms or very very close value like 70 k or 60 k (IMPORTANT: Don't change the value of this resistor if you make that your circuit it doesn't work).
17. No connection.
18. this pin goes to VCC or the positive of our power source
For output please refer the given image and
Thank for see my instructable!