Fan PWM control with Arduino sensor temperature and RPM speed @ObengwareID

Uploaded March 2023 | Updated September 2026, 3 weeks ago

4 pin fan with PWM / Pulse Wave Modulation
More easy compare voltage regulator

Speed RPM fan can adjust, example
For cooling with temprature range
For high load electronic and generate heat, need fan for cooling

Note
Almost PWM Fan have minimum RPM
Between 25%, 30% 50%, 70% up to 100% speed RPM
Only a few model fan 0 RPM
Old mode fan sensor, have internal NTC sensor. Fan increase speed if temperature increase above 45 deg.C and turn RPM maximum speed after sensor detect 45 deg.C

Using program, speed fan and temperature range can be program
obengplus.com/artikel/articles/393/1/Kontrol-fan-PWM-Speed--modul-program.html

00:00 Make fan control and temperature demo
00:26 Schematic wires
00:34 Sensor BMP280
00:45 Arduino Nano and OLED pin
01:06 ESP8266 pin
Without LED, wire connection fan controller ESP8266
Only need 5 pin, 4 for sensor, 1 for PWM signal to fan.
Other input power 12V
01:19 Display Fan, Speed, and Temperature
OLED only optional
01:42 Using ESP8266 Fan Control PWM
Can show fan speed, RPM etc via Web browser and connact to LAN
02:00 Minimum fan PWM speed
Not all fan the same minimum RPM fan speed
Intel fan Nidec FA09-12B1S1, minimum 50%
Intel fan Nidect F09A-12B1S2, minimum more lower 20%, silent fan, but low speed fan
04:24 Aplication cooling PWM Fan and Arduino

Fan PWM control with Arduino sensor temperature and RPM speed

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$How to replace mounting heatsink push pins How to Replace a Broken Plastic Mounting Pin on an Intel CPU Cooler 00:00 Repair a broken heatsink cooler 00:07 Twist the push pin 00:15 Dont to break the locking pin 00:35 Remove the inner part 01:20 Replace a broken with a new Its a common issue: youre working on your computer, and suddenly, a plastic mounting pin on your Intel CPU cooler snaps. These pins, which secure the cooler to the motherboard, can become brittle over time and break without warning. If one is bent, its often a sign that it could break soon. Fortunately, replacing a broken pin is a simple and inexpensive repair. Why Do They Break? Intels stock CPU coolers use a push-pin design. While convenient, the plastic pins are prone to breaking. The most common reasons for a pin to break include: Heat cycling: The repeated heating and cooling of the plastic can cause it to become brittle and weak over time. Physical stress: Bending a pin during installation or removal can cause a hairline fracture that eventually leads to a complete break. Age: Older plastic is more likely to be fragile and prone to snapping. Incorrect installation: Applying too much force or using an improper technique can stress the pin beyond its breaking point. What Youll Need New mounting pins: You can buy a set of replacement push-pins online or at a computer repair shop. They are often sold in packs of four. Small flat-head screwdriver: This will help you to gently pry the broken parts out. Rubbing alcohol and a clean cloth: To clean any thermal paste residue. New thermal paste: Its crucial to apply a fresh layer after reinstalling the cooler. Step-by-Step Replacement Guide Remove the old cooler: Carefully remove the CPU cooler from the motherboard. Youll need to gently twist the remaining pins to unlock them and then lift the cooler away. Remove the broken pin: On the back of the coolers fan assembly, youll see the broken pin. Use a small flat-head screwdriver to gently push it out. You may need to press on the broken piece from the front of the cooler. Insert the new pin: Take a new replacement pin and align it with the hole. Gently push it into place until it clicks. Ensure the new pin is correctly oriented. Apply new thermal paste: Apply a small, pea-sized dot of new thermal paste to the center of the CPU. This is essential for effective cooling. Reinstall the cooler: Carefully lower the cooler back onto the CPU, aligning the four pins with the holes in the motherboard. Secure the cooler: Push down on the four pins, one at a time, until you hear a click. This indicates that the pins have locked into place. You can do this in a diagonal pattern (top-left, bottom-right, top-right, bottom-left) to ensure even pressure. Alternative Solution: Upgrade Your Cooler If you find the plastic pins to be a recurring problem, it might be a good time to consider an upgrade. Aftermarket CPU coolers often use a more robust mounting system, such as metal brackets and screws, which provide a more secure and reliable fit.$

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