---
title: "Fuelling Your Arduino - Thermal Look at Arduino Power"
description: "There are many options for powering an Arduino board. The designers did a great job of designing an auto-select circuit that makes it simple to power the boards. However, there…"
canonical: "https://www.baldengineer.com/fuelling-your-arduino-thermal-look-at-arduino-power.html"
author: "James Lewis"
date: "2012-05-25T13:52:05Z"
lastmod: "2015-03-24T17:29:32Z"
image: "https://www.baldengineer.com/wp-content/uploads/2012/05/7193726194_761499da74_z.jpg"
categories: ["around-the-web"]
tags: ["9v-battery","arduino-stuff","power","thermal-camera"]
---

# Fuelling Your Arduino - Thermal Look at Arduino Power


There are many options for powering an Arduino board.  The designers did a great job of designing an auto-select circuit that makes it simple to power the boards.  However, there are trade offs in how much power is available and how much power gets wasted.  Australian Robotoics has a great breakdown of what an Arduino looks like under a thermal camera, when powered from USB and various external sources.  I don't agree with everything that is said in this article, but the pictures are very revealing (and cool to look at).

[Fuelling Your Arduino - Why you should use an External Power Breakout \| Australian Robotics](http://australianrobotics.com.au/news/fuelling-your-arduino-why-you-should-use-an-external-power-breakout).