If you are building your own, you can use any schematic for an ISD1700 series chip, change it to your liking, and control it with a PIC device. Here is a schematic for one that is controlled with a PIC12F683, and the example PicBasic Pro code. This example uses a similar demo board to the one I referred to earlier. So between the two, you have a full schematic of the interface, and all the supporting electronics. Since you are building it, edit it as you please, and build it like you want.
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Last edited by ScaleRobotics; - 29th October 2010 at 17:11.
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