Lora-HAT-for-Raspberry-Pi

Pi LoRa™ Lora Hat is a low-power consumption data transmission board, comes with an onboard CH340 USB TO UART converter, Voltage Level Translator(74HC125V), E22-900T22S/E22-400T22S SMA antenna connector that covers 868MHz/433MHz frequency band ,IPEX antenna connector, LoRa™ Spread Spectrum Modulation technology with auto multi-level repeating.

For Communication between two Pi Lora Hat

• First take 2 LORA Hat board and set jumper position as mention below:

  • Mode Selection Jumper : we are going to use pi GPIO pin 13 and 15 to control MODE Selection

  • LoRa mode selection jumpers

    • short M0, short M1: transmission mode (In this project we use transmission mode)
    • short M0, open M1: configuration mode (You can configure the lora via this mode)
    • open M0, short M1: WOR mode
    • open M0, open M1: deep sleep mode

  • Device Selection Jumper(Board Selection, This is also mention in the board) :

    • Set is as MODE 1 to enable USB to LORA Communication (Without raspberry pi)
    • Set is as MODE 2 to enable PI to LORA Communication (With raspberry pi)
  

Code

In this folder you see two python codes

• Lora_transmitter.py -> run this file to transmit the data (any data eg: sensor data,any string and message etc)
• Lora_receiver.py -> run this file to receive data from other lora

Applications

In this folder you see two application

• Pi Lora Broadcast (with LCD display), In this folder you see three files

  • PCLinuxOSFonts -> this folder contains various fonts
  • transmitter.py -> run this file to broadcast the data (any data eg: sensor data,any string and message etc)
  • receiver.py -> run this file to receive broadcast data from other lora
  • ST7789.py -> this is the lcd library file

• Pi Lora Homeautomation (with LCD display), In this folder you see three files

  • pi_lora_transmitter_home_automation.py
  • pi_lora_receiver_home_automation.py
  • ST7789.py

Lora GUI For Configuration (run with the help of GUI)

For this, you need to use Lora onboard USB

Go to the Lora GUI folder, and run the LORA_GUI.py file. from this file, you can configure the Lora and you are able to transmit, receive the data (eg: baud rate, channel etc) Follow the steps to configure the Lora module:-

Step 1: Setup lora in configuration mode, for this you need to short M0 and open M1 as shown in figure

Step 2: Open lora GUI

Step 2: set the COM Port and Baudrate

Step 3: For COM Port go to Device Manager, before this first you need to connect the Lora module via USB cable

Step 3: Write the right COM Port in the GUI,then press connect button

Step 3: Press read button to see the device configuration which lora already have

Step 3: Write the values which you need to configure, for eg: i configure channel and baudrate, after that press write button

Step 3: Restart the GUI, set baudrate and port, then connect and press read button

LoRa HAT Wiki Portal