hw.md

Hardware components needed for this project

• Adafruit Feather M0 with RFM95 LoRa Radio (2)
• Raspberry Pi 3 with adapter (1)
• GPS module - V.KEL TTL VK2828U7G5LF (1)
• Optional - 3.7v 350mAh LiPo battery (2)

Tools & software needed for this project

• Soldering iron

• Terminal (Raspberry Pi 3)

• Arduino IDE (For more details, click here):

  1 - Go to Arduino -> Preferences and copy/paste https://adafruit.github.io/arduino-board-index/package_adafruit_index.json at Additional Boards Manager URLs then click OK

  2 - Go to Tools -> Board: "Adafruit Feather M0" -> Boards Manager... then:

  • Type Arduino SAMD in the top search bar, then when you see the entry, click Install
  • Type Adafruit SAMD in the top search bar, then when you see the entry, click Install
  • For Windows users only, install drivers from here

Setup Steps

A - LoRa with GPS as Sender

• Solder a wire as the antenna
• Wire the gps module as the following (wiring from gps to LoRa):
  • TX -> RX
  • RX -> TX
  • EN -> 5
  • VCC -> 3V
  • GND -> GND
• Wire io1 -> 9 on LoRa
• Plug the LoRa receiver to laptop and identify its port on Arduino IDE to push the code to the intended LoRa
• Open the Serial Monitor from the top right side of the Arduino IDE for debugging

This is the Serial Monitor from Arduino IDE that shows the connection, the topics, the message, etc.

B - LoRa Receiver

• Solder a wire as the antenna
• Plug the LoRa receiver to laptop and identify its port on Arduino IDE to push the code to the intended LoRa

C - Raspberry Pi

• Plug in to USB ports:

  1 - Keyboard

  2 - Mouse

  3 - LoRa Receiver (Unplug it from laptop to Raspberry Pi 3)

• Plug in to HDMI port:

  1 - Screen/Monitor

• Plug the power and make sure that the Raspberry Pi 3 is up and ready for use

• Open a terminal on Raspberry Pi 3 to:

  1 - First install pip:

  `sudo apt-get install python-pip`
  

  2 - After that install pyserial:

  `sudo pip install pyserial`
  

  3 - Then:

  `sudo pip install paho-mqtt
  
    sudo git clone https://github.com/eclipse/paho.mqtt.python.git
  
    sudo cd paho.mqtt.python
  
    sudo python setup.py install`
  

  4 - Run gateway code:

  `sudo git clone https://github.com/hovig/lora_to_lora_mqtt_iot_cloud.git
  
  sudo cd lora_to_lora_mqtt_iot_cloud
  
  sudo python lora_mqtt_iotf.py`
  

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