LoRa Sensor Node

This Arduino project utilizes LoRa communication to create a sensor node that measures temperature, humidity, and battery voltage. It sends the collected data to a LoRa gateway at predefined intervals.

Components Used

• Arduino board (ESP32)
• LoRa module
• AHTX0 Temperature and Humidity Sensor
• Voltage divider circuit for battery monitoring

Dependencies

• ArduinoJson library
• LoRa library
• Adafruit AHTX0 library

Setup

1. Connect the AHTX0 sensor and the LoRa module to the Arduino board as per the wiring instructions.
2. Install the required libraries: ArduinoJson, LoRa, and Adafruit AHTX0.
3. Upload the provided code to your Arduino board.
4. Power up the Arduino board.

Functionality

• Measures temperature and humidity using the AHTX0 sensor.
• Monitors battery voltage to track battery level.
• Sends sensor data to a LoRa gateway at regular intervals.
• Receives configuration parameters (SyncWord, TxPower, etc.) via LoRa to update settings dynamically.
• Utilizes deep sleep mode to conserve power between transmissions.

Configuration

• The code can be configured with different LoRa settings such as SyncWord, TxPower, and frequency.
• Modify the enddeviceslist array to include the names of your end devices.
• Adjust the defaultSyncWord, defaultTxPower, defaultfreq, defaultinterval, defaultSpreadingFactor, and defaultSignalBandwidth variables to set default LoRa parameters.
• Define the user and timeout constants according to your requirements.

Usage

• Ensure proper wiring and power supply for the Arduino board.
• Monitor serial output for debugging messages.
• Adjust LoRa settings and sensor readings as necessary.
• Customize the code for additional functionality or sensor integration.

Authors

• Rungrueng Janrueng

License

This project is licensed under the MIT License.