#138 Variable Speed Cooling Fan for Raspberry Pi using PWM and PID controller

In this video, we will build a variable speed fan for a Raspberry Pi. It measures the CPU temperature and adjusts its speed automatically to keep the temperature constant. We also will learn a few things about Pulse Width Modulation (PWM), PID controllers, MOSFET transistors, and even a little bit of magic.

Links:
Blog entry: http://www.sensorsiot.org/?p=291
IRLZ44n: https://www.aliexpress.com/item/10Pcs-IRLZ44N-MOSFET-N-CH-55V-47A-TO-220AB-New/32599971025.html
IRF3708: https://www.aliexpress.com/item/20PCS-IRF3708-TO-220-IR-30-V-62A-87W/32801201791.html
Raspberry Pi 3 kit: http://bit.ly/2q1mcL5
RPM Meter: http://bit.ly/2rwnpME
Fan: https://www.aliexpress.com/item/1PCS-5V-0-2A-Cooling-Cooler-Fan-for-Raspberry-Pi-Model-B-Raspberry-Pi-2-3/32772311967.html
Github: https://www.github.com/sensorsiot
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Видео #138 Variable Speed Cooling Fan for Raspberry Pi using PWM and PID controller канала Andreas Spiess