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Be sure to use the Arduino Stack Exchange for questions that are more Arduino and less electronics.

7 votes
1 answer
17k views

Using a TIP122 to control a motor

I want to control it with the Arduino PWM pins, the power supply is 4 1.5V AA batteries connected in series giving 6v. … Also, what steps should I take to protect the arduino against and EMI from the motors? …
Amith KK's user avatar
  • 305
13 votes
4 answers
4k views

Is there any way that the Arduino board can get damaged by using a buzzer without a resistor?

I want to use a standard piezo buzzer on one of the Arduino Uno's analog pins without the use of a resistor. Will connecting this be a problem for the Arduino board? Why? …
Amith KK's user avatar
  • 305