Lora-HAT-for-Raspberry-Pi

NOTE: There is difference in latest Raspberry Pi 5 terminal use as compared to previous Pi 4 and 3. To Use LoRa HAT with Raspberry Pi 5 you will have to change Serial access port as shown in below code

# For previous Raspberry Pi 4 & 3
lora = serial.Serial(port = '/dev/ttyS0', baudrate = 9600, parity = serial.PARITY_NONE, stopbits = serial.STOPBITS_ONE, bytesize = serial.EIGHTBITS, timeout = 1)

# replace ttyS0 with ttyAMA0 for RPi 5 
lora = serial.Serial(port = '/dev/ttyAMA0', baudrate = 9600, parity = serial.PARITY_NONE, stopbits = serial.STOPBITS_ONE, bytesize = serial.EIGHTBITS, timeout = 1)

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

  Our Other LoRa Products

• GatePi 4Channel
• GatePi 8channel
• RangePi
• LoRA HAT for RPi*
• PICO LoRa Expansion

You will simply need to make one device to work as reciever and another one is as a transmitter. So that you can communicate to each other and this can be done with any of our LoRa products mentioned above. For working with our other products please follow the below link:

• GatePi 4Channel https://github.com/sbcshop/GatePi-4CH
• GatePi 8channel https://github.com/sbcshop/GatePi-8CH
• RangePi https://github.com/sbcshop/RangePi
• LoRA HAT for RPi* (Itself)
• PICO LoRa Expansion https://github.com/sbcshop/PICO-LORA-EXPANSION

Note: Every time you choose the mode of transmit device the transmit code of that device should be run in it and reciever code will always same (or depending upon what you want to control or recieve).

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. In case of PICO LoRa Expansion find the mode selection jumper in that board and remove M1 jumper for config mode.

Step 2: Open lora GUI

Step 3: set the COM Port and Baudrate

Step 4: For COM Port go to Device Manager, before this first you need to connect the Lora module via USB cable

Step 5: Write the right COM Port in the GUI,then press connect button

Step 6: Press read button to see the device configuration which lora already have

Step 7: Write the values which you need to configure, for eg: i configure channel and baudrate, after that press write button

-> For changing frequency using Software for 868MHz & 915MHz LoRa module:

Frequency = 850.125MHz + CH*1MHz

0-83 total of 84 Channel available

So, when 5 selected Frequency = 850.125MHz + 5*1MHz Frequency = 855.125MHz

-> For Changing Frequency using Software for 433MHz LoRa Module: Frequency = 410.125MHz + CH*1MHz

0-83 total of 84 Channel available

So, when 5 selected Frequency = 410.125MHz + 5*1MHz Frequency = 415.125MHz

Step 8: Restart the GUI, set baudrate and port, then connect and press read button

LoRa HAT Wiki Portal