We will make this project into two parts. In the first part, we will design a remote control circuit using an RF module, and in the second part, we will connect a home appliance to our circuit. The circuit below is fully tested on real hardware, and if you are doing this project in Proteus, then you will need an RF module transmitter and receiver library. Many proteus do not have this library. So check if you have this library or not. Or alternatively. The explanation is below the circuit diagram.
Before explaining last time, I am telling you that “without reading the datasheet of the components you are using, you cannot design an efficient circuit”. In the above project, you will need a datasheet for M145026 and M145027. Please download the datasheet from this link datasheet and read it carefully. M145026 is an encoder IC, and M145027 is a decoder IC. The encoder reads the input state and generates a unique value after pressing a button, and then the value is transmitted by the transmitter. On the other hand, the receiver receives the generated value from the transmitter wirelessly, and the decoder detects the value generated by the encoder, and then the necessary action is taken according to this value. That’s all concept behind this project. If you have any further questions about this project, please leave a comment below, and I will try to answer them.
The M145026 encodes nine bits of information and serially transmits this information upon receipt of a transmit enable, TE, (active low) signal. Nine inputs may be encoded with trinary data (0, 1, open) to allow 39 (19.683) different codes.
- M 145026 ENCODER
- M145027/M145028 DECODERS
- MAY BE ADDRESSED IN EITHER BINARY OR TRINARY
- TRINARY AD D R ESSIN G MAXIMIZES THE NUMBER OF CODES
- INTERFACES WITH RF, ULTRASONIC, OR
- INFRARED TRANSMISSION MEDIAS
- DOUBLE TRANSMISSIONS FOR ERROR CHECKING
- 4.5V TO 18V OPERATION
- ON-CHIP R/C OSCILLATOR, NO CRYSTAL REQUIRED