The HC-12 is the easiest way to transfer data over the air between two Arduino. Just connect the RX and TX pins for the transfer of data. It is a 100mw multi-channel wireless transceiver you can use in your projects to transmit and receive serial information. HC-12 module has a microcontroller that actually doesn’t have to be programmed by the user. For configuring the module we simply use AT commands, which can be sent from an Arduino, a PC, or any other microcontroller using the serial port. For entering the AT command mode we just have to set the “Set” pin of the module to a low logic level. Its wireless working frequency band is from 433.4 MHz to 473.0 MHz.

Specifications :

Features :

• Low active power consumption
• Max output power +20 dBm
• Operation Voltage: 3.2V to 5.V
• Communication distance: 1,000m in the open space
• Operation Frequency: 433.4MHz to 473.0MHz
• Antenna Interface: Spring Antenna
• Serial (RX, TX, GND) interface

Package Include :

1 x HC12 SI4463 Wireless Serial Port Communication Module