Recently I posted a mini review of the iGaging Absolute DRO Plus scales that covered the some basic information on the connection scheme, etc. As I mentioned in the last post, the scales use a different communication protocol. Unlike the DigiMag scales, these scales require additional circuit between them and the MSP430 LaunchPad board. As promised, in this post I will provide instructions on how to connect the scales to the MSP430 Launchpad controller.
Working with iGaging Absolute DRO+ Scales
Tuesday, December 8, 2015
Since their initial release iGaging Absolute DRO Plus scales seem to be gaining momentum. They have a lot going for them, but unfortunately they are incompatible with the original 21-bit iGaging protocol. For some time I've been getting an increasing number of request to add support to the controller firmware, so a few months ago I went ahead and purchased a 6" scale to experiment with. Finally last weekend I added support for these scales to the "Mixed Scales" MSP430 controller firmware. In the first part of this post I will explain what's different about the Absolute DRO+ scales and provide a quick overview of the data protocol; in the second part I'll provide detailed instructions on how to connect them to the MSP430 Launchpad DRO controller.