DEMO board function The SX1280 wireless module distance measurement demonstration board mainly realizes the distance measurement demonstration function of SX1280 and bidirectional communication between transmitter and receiver in LoRa mode. The parameters of two modes in the distance measurement demonstration board can be modified. With our example program, it is easy to observe the SPI communication between MCU and wireless module, and this development board can be used as a standard signal source to debug customer development programs without professional RF instruments, greatly shortening the product development cycle of software engineers. 2. Distance measurement demonstration function: After selecting the Ranging Mode distance measurement mode interface from the main interface, set the distance measurement mode parameters to be consistent, and then set the master-slave to measure distance. 3. Communication testing function in LoRa mode: Select the LoRa mode interface from the main interface, set the LoRa mode parameters to be consistent, and then select the LoRa communication interface to test. There are three buttons on the demonstration board, namely SET button, UP button, and DOWN button; The functions are as follows: Operation method: Normal power supply, toggle the power switch, turn on the power, and the distance measurement demonstration board LCD screen will display the main interface. The main interface has two categories: Ranking Mode and LoRa Mode. To enter a certain option, press and hold the SET button briefly, and then press and hold SET to return. Move the cursor up and down, press the up key briefly, and press the down key briefly. The Ranking Mode interface is divided into three main options: Ranking Master, Ranking Slave, and Setting. The LoRa Mode interface is divided into two main options: Communication and Setting. Color: Blue Material: PCB Package Contents: 1*LoRa1280 Demo Board Only the above package content, other products are not inc