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Learn to build a temperature-controlled PWM fan controller using an ESP32 microcontroller with OLED display in this comprehensive 31-minute tutorial. Discover the inner workings of 4-pin computer fans, including their brushless DC motors and integrated Electronic Speed Control (ESC) systems, while mastering both automatic temperature-based and manual control modes. Explore PWM fan control principles through hands-on demonstrations, implement simple fan control circuits, and utilize tachometer functionality to monitor fan rotation and detect stall conditions. Build a complete fan controller system featuring real-time temperature monitoring, performance display on an OLED screen, and dual operating modes for versatile cooling applications in computers, power supplies, and other electronic projects.
