I tried to avoid the arduino use for this project, but it didn't worked out. (I'm newbie to this)
I want to controll the speed of a (small) dc motor (voltage: 1.5 - 6V DC / current: 500mA (at 5V) / max current: 2000mA (at 5V).
From very slow (20-30 turns/minute) to very fest (300 turns/minut). I bought this PWM Mosfet controller board:
I connected it to a 9v battery and the DC motor. But when the motor starts to turn, it is turning already quite fast.
Did I do something wrong?
Now I saw this tutorial: How to Control the Speed of a DC Motor with the Arduino - dummies
I haven't made it yet, but I suppose the speed goes from very slow to fast. If so, is there a chance I can connect three of these motors to one Arduino board. And all of them going a different speed.
Thank you for your help!