Emulating antique calculators Sinclair Scientific and TI Datamath 2500, 2020 versionDesigned by Store139 in Canada
This is a new version of my same named calculator kit. Instead of employing the obsolete and expensive QDSP-6064 Bubble LED Module, this kit employes 3 x 3 digit common 2.5" high LED modules. This ...Read More…
This is a new version of my same named calculator kit. Instead of employing the obsolete and expensive QDSP-6064 Bubble LED Module, this kit employes 3 x 3 digit common 2.5" high LED modules.
This is a microcode emulation, not a function emulation of the original calculators. I actually do not understand well the very complex calculator logics. I just implement the the original TMS080x 4 bit mcu and have the calculator ROM run against it. I believe the TI DataMath ROM was obtained from a TI patent document, while the Sinclair Scientific ROM was extracted by reverse engineering a 40+ year old chip via acid bath and microscope analysis.
The emulator was created to be;
Emulation core is based on Ken Shirriff's work. This is not a new project. This project was done in June 2014. I am creating this page here to link this to a tindie project page and sell the remaining kits I had created over the years.
Assembly / Soldering Instructions
I also sticky tape one button as an example of how you should bent the pins w/ a pair of long nose pier and fit them in. you should solder them buttons on the top and you will have a smooth bottom that won't poke your fingers.
|Shipping Rate||Ships From||First item||Additional items|
Canada Post: Small Packet Air
We recognize our top users by making them a Tindarian. Tindarians have access to secret & unreleased features.
We look for the most active & best members of the Tindie community, and invite them to join. There isn't a selection process or form to fill out. The only way to become a Tindarian is by being a nice & active member of the Tindie community!