No better time than to have a go at a small tech project!
Hardware is cheaper than ever and there are lots of great free software options too that don't need you to be too much of a techie.
Here is the list of hardware I'm using and software too:
Hardware
- mini computer (aka micro controller): ESP32 - £6.99 delivered
- temp & humidity sensor: DHT22 - £5.00 delivered
- solar panel & battery unit: Freeloader Sixer (designed for mobiles but perfect for my purposes too) - £12.00 delivered (secondhand)
- Mini servo: MG90 Servo - £4.00 delivered
Software
- Arduino IDE - Free (to write the code for the mini computer)
- Mosquitto MQTT - Free (to collect temp & humidity data from the mini computer)
- Sqlite - Free (to store the data collected)
- Node-Red - Free (to visualise / dashboard the data collected)
Total cost: £27.99
