Wireless Weather Station (nRF24L01)
This is something I've build as part of a bigger project but it can be actually integrated into any kind of project which needs environmental sensing without much of a headache.
Bill of materials:
- Perfboard + cables: 1.00 USD
Total cost of the project: 10.50 USD
Left: nRF24L01, Right up: BME280, Right down: DHT22.
Find below the fritzing schematics which are actually available for download at the end of this page:
Wireless Weather Station schematics
BE CAREFUL WITH THE nRF24L01 VCC as it has to be powered with 3.3V, otherwise if you power the module with 5V directly you could damage it!
Receiver set-up (example)
Once you get the data transmitted via the nRF24L01 transceiver you could for example get it easily displayed on an LCD:
3.2" TFT LCD + Arduino Mega 2560
In case, you are willing to replicate the display set-up, you can easily get the necessary parts for less than 20 USD.
Arduino Mega 2560
3.2" TFT LCD for Arduino Mega 2560