This RF module designed based on an RF Transmitter and an RF Receiver operates at a frequency of 434 MHz. An RF transmitter transmits serial data input wirelessly through its antenna connected at pin4. It transmits signals at the rate of 1Kbps – 10Kbps. The module consists of a SAW resonator tuned for 433.xx MHz operation. Moreover, there is a switching transistor and a few passive components to perform the functions.
This Radio Frequency (RF) module operates on Amplitude Shift Keying (ASK) with transmitter/receiver (Tx/Rx). The Transmitter transmits this serial input through RF. Then the Receiver module receives the transmitted signal placed away from the source of transmission. Thus these RF signals transmitted at a particular frequency and a baud rate. The RF receiver receives the transmitted data only if it operating at the same frequency as that of the transmitter. Moreover, this RF module has a wide range of applications in a Car security system, Remote key-less entry, Garage door controller, Home security, Wireless mouse, Automation system.
In this low-cost Tx/Rx, the transmission occurs at the rate of 1Kbps – 10Kbps. This RF transmitter can transmit signals up to 100 meters (the antenna design, working environment, and supply voltage will seriously impact the effective distance). Thus, in short, it’s good for a short distance, battery power device development. This is an easy-to-use module and can be easily interfaced with Arduino, ESP866, ESP32, etc.
- Home automation and security
- Transmit serial data for a short distance
- Wireless logging
- Remote control robot or car’
- Short distance communication