I'm a newbie of electronic and arduino.
Now I tried to control a vibration moter by arduino. I just used some High Low code but the motor goes fast and slow.
Do anybody know why that happeneds? Is that I need to connect some other components with it?
I just transformed a toy motor to a vibration motor. I followed the current and code in this web: Arduino 12: Transistors | Quarkstream It should be right because it's quite simple.
Then I tried replacing by a coin vibration motor, it worked properly... what's wrong?...
That circuit is missing a resistor to the base and missing a flyback diode.
That circuit is very wrong. Perhaps the transistor is already blown and the Arduino could be damaged.