I have a question about powering an Arduino from an external power source. This is a 12v wall wart which is being used to power a motor. This motor is being controlled by an NPN transistor using a PWM port on the Arduino. Currently I am protecting the transistor using a diode across the terminals of…

Inductive spike (kickback) how protect Arduino

Topic		Replies	Views
Kickback Diode On Motor - question General Electronics	13	13162	May 6, 2021
How To Power Arduino With a 12v Car Battery? Interfacing	10	78621	May 6, 2021
Getting Started with Arduino...MOSFET Question General Electronics	9	5015	May 6, 2021
Voltage analog measurement with high voltage spikes Sensors	2	1143	May 6, 2021
SparkFun MOSFET Power control kit, some help needed. Motors, Mechanics, Power and CNC	10	10245	May 6, 2021