Project
Fan Controller source published
ESPHome firmware for a WiFi PWM fan controller driving a spot-cooling hub over hot rack gear, surfaced as a first-class device in the home-automation stack.
Stack
ESPHome · Arduino Nano ESP32 · Home Assistant
Notable engineering
- Firmware rather than an application — ESPHome on an ESP32 driving a PWM fan hub.
- Spot-cools specific hot components in the rack instead of raising airflow across the whole enclosure.
- Appears in the home-automation stack as a normal controllable device, so it is automated with the same tooling as everything else.