I did Yuriy's wireless dro for igaging scales today.

$30 Arduino Uno Rev3, $10 Bluetooth Slave module from ebay, $24 in scale connectors from digikey ($8 per scale), three 10K ohm res, one 220 ohm res, one 330 ohm res , Arduino Proto shield with breadboard, few pieces of jumper wire (Arduino Uno, Proto shield, breadboard, jumper wire, and resistors all from Radio Shack), iGaging scales (sold by Grizzly and others), sketch, and a used $100 ebay bluetooth equipped android 9.7 tablet = Wireless Digital Readout!

Here it is with one scale wired

http://www.yuriystoys.com/2012/09/ar...eless-dro.html

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