Day 19 - Tent Electronics
A bit back I showed off a prototype temperature and RH monitor, with the eventual aim of connecting up some relays to switch things on and off. Obviously I couldn't put a breadboard in the tent with jumper wires all over the place, so today I made it for real and hooked it up to a Raspberry Pi. The Raspberry Pi Zero at £5 could have been used just as easily.
Here's the Pi and finished circuit. The prototype breadboard snuck into the picture too
Here's the actual probe that will sit in the tent once I have a longer wire
I have some relays capable of switching mains voltage and will write an interface to allow me to check the temperature & RH of the tent on my phone. It will also allow me to switch fans on and off remotely. I'll release more details once complete and open source it with a parts list so anyone can make their own. A knowledge of mains voltage & electronics would be required to make it safely though.