This project pairs a set of 8-bit microcontrollers with a 433-MHz industrial, scientific and medical (ISM) band transmitter/receiver. The FS1000A RF transmitter has a range of up to 200 m; the XY-MK-5V RF receiver operates at 5 V and uses only 4 mA. These modules are readily available and used in projects with platforms like Arduinos.
The projects usesMicrochipPIC microcontrollers including the16F1619and16F1614. These utilize the radio modules employing the on-chip EUSART (Enhanced Universal Synchronous/Asynchronous Receiver Transmitter) interfaces. On the transmitter side, we use the PIC’s analog and digital interfaces to read a voltage and a frequency source within the range of 0 to 4.99 V dc and 0 to 65.5 kHz, respectively.
