Arduino weather station with lora data transmission

Used sensors/modules

• Groove temperature, humidity, pressure and gas sensor (BME680) from Seeedstudio
• Groove sunlight sensor (SI1145) from Seeedstudio
• Adafruit TPL5110 power timer

Used libraries

• https://github.com/Seeed-Studio/Seeed_BME680
• https://github.com/SeeedDocument/Grove-Sunlight_Sensor/
• https://github.com/sandeepmistry/arduino-LoRa
  • NOTE: Requires firmware v1.1.6 or later on the on-board Murata module. Please use the MKRWANFWUpdate_standalone example from latest MKRWAN library release to update the firmware.
• https://github.com/arduino/ArduinoCore-samd (version 1.6.21)

Lora information (Arduino)

• Lora TX power is set to 20
• LoRa SF (spreading factor) is set to 8
• LoRa bandwith is set to 125E3 Hz
• LoRa coding rate is set to 4/5
• Lora preamble length ist set to 8
• Lora sync word ist set to 0x34
• Frequency is set to 868300000 -> 868.3 MHz

Lora information (Arduino)

Gateway is a Dragino OLG02 Outdoor Dual Channels LoRa IoT Gateway (https://www.dragino.com/products/lora-lorawan-gateway/item/136-olg02.html)

Send data format

Example: <4567>01;21.16;954.98;46.88;260;256;0.00;;
The ; is a divider between the different values.
The values are in this order:

• Station number
• Temperature in celsius
• Pressure in hectopascal
• Humidity in %
• Visible light in lumen
• Infrared light in lumen
• Ultraviolet light in lumen