From the start, my goal for TouchDRO was to create a do-it-yourself DRO project that would allow people to build a powerful digital readout as inexpensively as possible. To make the project more accessible to people who are not comfortable with electronics, a few years ago I started offering pre-assembled adapter boards for sale.
Since the boards are manufactured in the USA on a relatively small scale, their cost is much higher compared to a scratch-built DIY DRO adapter. The original TouchDRO Mixed Scale DIY Kit was designed to bridge the gap at a price point that was about half-way in between. The kit was very successful from the sales standpoint but created an unexpectedly large support burden.
Because I wasn't able to sustainable deal with it, I pulled the plug on the kit and removed it from the store. Since then, I've been getting a constant trickle of emails asking when the kit will be available or if I have any left for sale. After some "soul searching" I decided to offer a new version of the TouchDRO DIY kit, taking into account lessons learned from the last one.