Geekcreit HC-12 433 SI4463 Wireless Serial Module Remote 1000M with Antenna

hi my name is Tom Allen in this video you will learn how to communicate between two Arduinos over long distance up to 1.8 kilometer in open air the ac-12 is a wireless serial port communication model it is very useful extremely powerful and easy to use first you will learn how to make a wireless instant messenger with the least effort possible then we will move on to light up an LED with a push button and then we will learn a few useful string functions and operations for serial communications the last part of the video is not necessary but you will learn how to use the AC 12 module like a pro in this part you will learn how to enter the module setup mode to change the baud rate communication distance and so on and finally you will learn how to connect an external SMA antenna follow the rest of this video to find out how easy it is to become a pro and wireless serial communication we ne