Fan Control

ESP32-C3 4-Wire PWM Fan Controller

Quick Actions

Hold BOOT on ESP32-C3 while plugging in USB, then tap Flash:

Download APK

Wiring Pinout

Wire Pin Specification
Blue GPIO 4 25 kHz PWM
Yellow GPIO 3 Tachometer (Pull-up)
Red +5V / +12V Power rail
Black GND Common ground

Setup

  1. Connect ESP32-C3 via USB (hold BOOT) and tap Flash ESP32 above.
  2. Press the RST button on ESP32 (or unplug & re-plug USB) to start.
  3. Install and open the Android APK — connects automatically inside the app.