Fan Board v0.2

PWM fan regulator (2/3/4 pin)

USB-C (needs A to C cable)

Comparator circuit based (Astable oscillator)

3D printed case

• 43.5 x 27 x 14 mm

You need to provide your own 5V fan & USB powerbank

• Some powerbanks shut off when the power draw is too low, make sure yours doesn't

High end

• Noctua NF-A4x20 5V PWM

• Noctua NF-A4x10 5V PWM

• Noctua NF-A6x25 5V PWM

• Noctua NF-A6x15 5V PWM

Low end

• Any AliExpress 40-60mm 5V fan with compatible connector & housing

  • 2 pin - JST XH 2.54, Dupont 2.54

  • 3 pin - KF 2510

  • 4 pin - KF 2510 (3+1), Molex 47054-1000

Poor ergonomics, potentiometer handle too long

Tuning of control characteristic (linear)

Choice of 2/3 to 4 pin fan switch

USB-C to C cables don't work due to missing CC resistors