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2 images, 2 files, 2 parts, 2 comments

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.

Parts for Arduino Power Tester:

Check out this video example:

2 Comments on Arduino Power Tester

Severino Aug 17 2008

This can only measure up to 5V because it is going into the micro controller. Higher voltages could damage the chip.

Scoota Dec 08 2008

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.



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Get in touch if you have any questions, or ideas for something you want me to build.