Fresh Air trickle vent project (pt 1)

Why watch

This video demonstrates a DIY project to automatically control fresh air intake through a window trickle vent based on CO2 levels using an ESP32 and ESPHome. The creator connects a Senseair S8 CO2 sensor to an ESP32, configures ESPHome to read CO2 levels, and controls a Noctua NF-A8 PWM fan to draw fresh air when indoor CO2 exceeds a threshold. It covers PWM configuration, wiring diagrams, power sharing issues, and Home Assistant integration for a practical smart home air quality solution.