MSP430G2452 acting as a TMS0803 calculator chip.
Emulates TI Datamath 2500 and Sinclair Scientific.
There seems to be some interest in building this emulating calculator so I will start a build thread.
/EDIT add youtube video, different versions of PCBs, try to get everything in one place. 1st July. 2014
/EDIT add build tips down under, here 8th July, 2014
I got introduced to a web based calculator emulation via this thread.
I got interested and start playing w/ the idea of implementing the emulation on an msp430, my code is based on Mr Ken Shirriff's work from the follow