Small collection of my LoRaWAN related projects.
Highly inspired by siuwahzhong's repository lorawan-library-for-pico. Borrowed DHT library from vmilea's repository pico_dht.
Using a Waveshare SX1262 Raspberry Pi Pico Board and a common DHT22 sensors this software sends the temperature and humidity to TheThingsNetwork.
Connect a DHT22 Sensor as following, have a look at the pinout guide:
- 3.3V or 5V power: 3V3 (OUT) - PIN36
- DATA: GPIO14 - PIN19
- GND: GROUND - PIN3 (or any other GROUND pin)
Setup a device in TheThingsNetwork console and change EUIs and KEYs in src/config.h.
You will need a working Raspberry Pi Pico development environment and the pico-sdk to compile this.
git clone --recurse-submodules https://github.com/Finn10111/LoRaWAN
cd LoRaWAN/pico-sx1262
export PICO_SDK_PATH=/usr/share/pico-sdk/ # if not set yet
cmake -DPICO_BOARD=pico
make
After compilation copy the pico_lorawan_dht22.uf2 to the Pico.
- I am not a C developer at all.
- Battery life is bad, really bad, like about a day. Don't know how sleep mode works.
- Code is messy and I don't check for any errors.
- Not ready for production use, trying to make it more stable and less energy hungry.