If you read some of the earlier posts on this blog you will quickly see that the times were much simpler four years ago when it comes to iGaging scales: there was only one kind and red wire was "Vcc", black wire was "Ground", and so on. Since then iGaging has gone through several revisions of the original DIgiMag scales and has introduced AbsoluteDRO and EZ View scales. My goal for this post is to explain what are the different iGaging (and generic scales made by Shahe) that TouchDRO supports and how to connect them to the BlueTooth DRO controller.