It's Here! Chris Odom's Physical Computing & Robotics with the Arduino IDE - Volume Two!

HC-12 433Mhz/868MHZ Wireless Serial Port Module


The HC-12 wireless serial port communication module is a new generation of multi-channel embedded wireless data transmission module. Its wireless working frequency band is 433.4-473.0MHz. Multiple channels can be set, with a channel stepping of 400kHz and a total of 100 channels. The maximum transmitting power of the module is 100mW (20dBm), the receiving sensitivity is -117dBm at a baud rate of 5000bps in the air. Communication distance is 1000m (FU3 mode at 4800bps serial speed) in open space, 1800m in FU4 mode at reduced baud rate and volume of data.

Simple Code Example

Multi Sensor Code Example

See video for use and connection instructions: