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TOOLS / TEST EQUIPMENT
Mini 2-wire Volt Meter (3.2 - 30 VDC)
PRODUCT ID: 460
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DESCRIPTION
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Put a voltage meter anywhere with this very handy display. These are often used by
RC hobbyists for keeping track of batteries but we thought it would be great on a
breadboard or enclosure. This is the 2-wire version of the volt meter, two wires are
used to power it and measure at the same time. We also have a 3-wire version that
measure a wider range of voltages.
Simply connect the red wire to the positive supply, and black to negative ground.
The display has a microcontroller that will read the voltage, compare it to a stable
reference and display the voltage with 0.1V precision on a 3-digit 7-segment
display. It works from 3.2V up to 30V so it will be good for nearly any electronic
project! The meter draws 3-4mA to power the microcontroller and display. This
particular LED display is a nice vivid green, which we found very readable.
Mounting tabs make this module easy to attach to any box or plate.
http://www.adafruit.com/products/460
7/21/2015
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