Hello, i'd like to kno if it's possible to power an arduino UNO with a car battery (12V). I'd like to create a circuit with a 12v motor, but the arduino's output is about 5v, so I decided to use firstly a transistor, but a chose a relay whereas a transistor. Is it relevant ? Thank you

Arduino powered with a 12V car battery ?

system April 5, 2014, 8:29pm 5

Here it is

Topic		Replies	Views
12v power supply General Electronics	31	10657	May 6, 2021
Powering Arduino with a Car Battery General Guidance	11	5324	May 5, 2021
How to make a power supply for 12 Volts DC Motor as well as Arduino Uno General Electronics	13	6822	May 6, 2021
is my circuit and arduino supplied with power in a good way ? General Guidance	27	7850	May 5, 2021
power Arduino - 12V car battery Motors, Mechanics, Power and CNC	2	1478	May 6, 2021