LED Voltage Indicator Board

With this little kit, what you see here is what you get... The LED changes colour at the supply voltage set by the trimpot! The LM336Z-2.5 voltage reference ensures stable performance over temperature.

Brief Specifications

Operating voltage: 6V to 30V DC (no other power source needed)
Current consumption: Depends on supply voltage- around 10mA at 12V.
LED colours: Green / Red
Dimensions: 1.0 x 1.0 inches (25 x 25mm)

How to get it...

It's only available from Jaycar Electronics as catalog number KA1778.

Or build your own! Click here for the schematic, and click here for the PCB artwork in EasyTrax format.

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Last update: 10th Feb, 2007