KenoraI've added a potentiometer to the PCB to control the fan speed. The V1.0 board used a PWM pin, that does not support PWM. It is still possible to use one of the ISP pins (D11) which is directly beside the motor conector to use PWM control.
New PCB
A project log for Soap Bubble Machine
Automated Soap Bubble Machine controlled by Arduino with lasercut frame
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