6 inch Type B-Mini USB Cable 
ButtonPad 
GamePack 
Illuminato X Machina 
Lithium Backpack 
Mega Backpack 
TouchShield Slide 
TouchShield Stealth 
TripleWide ExtenderShield X 
Arduino Power Tester
This code displays the power of the Arduino’s on-board 3.3v power supply. It’s a good example of Arduino to TouchShield communication and TouchShield graphics. Two files are part of this project, one to compile and upload to the Arduino, one to compile and upload to the TouchShield.
Check out this video example:
6 Comments on Arduino Power Tester
FYi to other readers, you could make this measure a wider range of voltages by using a resistor divider network, and then multiplying the result you get from the Analog input pin accordingly. I have my Arduino measure up to about 20VDC safely.
Hi! It seems the .pde file links are broken? I get a prettified 404 from github on both links.
where are the files and the code…
I’m having a problem with the graph.h library for some reason. Can I get it somewhere? What’s going on? It’s saying no such file or directory.
Hi, I am trying to understand the touchshield slide and i’m getting a lot of errors while compiling, a simple rectangle is no problem but a simple circle is a nogo :( The above voltage sample is complaining about a missing graph.h…
Also there are quite a few ide versions available, i really don’t know what the correct version is, using mac osx and currently testing antipasto arduino v0.8.10
This can only measure up to 5V because it is going into the micro controller. Higher voltages could damage the chip.