Note: I assume that you are already familiar with the UART(Universal Asynsronous Receiver-Transmitter). We can connect RF transmitter to one and RF receiver to another in order to transfer data between both of them. Both 8051 microcontroller and arduino uno have Uart ports. QIACHIP gives you the simplest and easy to use wireless remote control products. For example if transmitter is working on 9600 bps then receiver baud rate must also be set to 9600 bps.Īny microcontroller have a serial UART(Universal Asynchronous Receiver-Transmitter) port can be used with RF receiver and transmitter. The module uses the ASK modulation method to transmits the data. Data transmission rate or baud rate must also match with each other. 433MHz RF Transmitter Module Features The Transmitter offers one-ways communication through 433.92MHz frequency at 1Kb data rate It operates at 3-12V which is the power operating volts of most of the microcontrollers and boards. Both the transmitter and receiver must be working on same frequency for successful data communication. Receiver receives the data, decode it and pass it to the control system attached with it. Transmitter receives the dat from external microcontroller and then transmit it over the air. I would focus on finding out if you have a receiver/transmitter pair tuned for the same frequency (check labeling) - if not you need to replace one or both. RF module transmit and receive data serially(one bit followed by another). Reciever typically operates within a narrow band and both transmitter and reciever are tuned to either 315Mhz or 433MHz.
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