I'm building a 12v fan controller with Raspberry Pi Pico, a 12v High/Low relay, external 12v power source, and 12v fan. Does this circuit diagram look mostly right?
OR can I skip using the MOSFET and resister and do something like this simpler diagram instead?
Iβm in the market for a fan too! I havenβt been able to find something reasonably priced for DIY vs buying a $100 retail booth.
The best looking option I found was this radiator fan. Hopefully someone that knows better can tell us if this is a good option.
Based on how big of a space you need you probably will need a pretty heavy duty fan.
I chose the Endless Breeze that has been discussed endlessly (haha!) for oversized swamp coolers (2.6 amps for 920cfm): https://www.amazon.com/Fan-Tastic-01100WH-Endless-Breeze-Stand/dp/B0000AY2Z6
Also, this one is a new one that I don't know how effective it is but moves a good amount of more air (2.8 amps for 1700): https://www.amazon.com/gp/product/B01JI0KOWG/ref=oh_aui_detailpage_o01_s01?ie=UTF8&psc=1
