Transciever wireless 433 Mhz (1 Km) HC-12 SI4463

Applications

Wireless sensor;
Security of buildings;
Robot wireless control;
Industrial remote control;
Acquisition of data automatically;
POS system;
Automobile entry systems;
Wireless PC network;

Specifications

Wireless transmission over long distances (1km in open space / 5mbps in air);
Frequency range (433.4 - 473.0 MHz, up to 100 communication channels);
Power transmission of up to 100mW (20dBm) (8 power levels can be set);
Three modes of work adapted to different application situations;
Built-in MCU that performs communication with the external device via serial port;
Number of bytes transmitted unlimited at one time;
Software update via serial port;
Dimensions: 28 x 14.5 mm;
Operating voltage: 3.2 - 5.5 V DC;

Wiring

Tutorial & Code

https://howtomechatronics.com/tutorials/arduino/arduino-and-hc-12-long-range-wireless-communication-module/

Data sheet

https://www.elecrow.com/download/HC-12.pdf