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4 wire fan

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4 wire fan

All Tutorials, ESP8266 and ESP32, MicroPython

How to Control a 4-Wire PC Fan Using ESP8266 (PWM + RPM Monitoring Guide)

Bernhard / December 21, 2025

Learn how to control a 4-wire PWM PC fan using an ESP8266 board. This step-by-step guide covers circuit wiring, PWM speed control, and RPM feedback monitoring with MicroPython.