Resin Printer Ventilation System
Wireless fan control modules for my resin printer setup
Overview
When I got a resin printer for the garage I figured that I should add a ventilation system to prevent harmful gases from building up. This project was a fun weekend exercise building several wireless fan nodes and a duct system in my garage.
System Design
The system contains 3 wireless modules: controller, blower node, and vent node. All three modules use Glo Rev 2 as their processor. The blower node features a heavy-duty blower fan and the vent node uses a similarly spec’d axial fan, alongside a DHT11 for gas temperature and humidity sensing.
The controller node communicates with the blower and vent nodes via ESP-NOW using a custom messaging protocol. The system includes individual fan speed sensing, gas humidity and temperature sensing, periodic heartbeats, and an automatic alert function if a fan were to fail.
Development
