I now have an extra ti 34 that I would like to reprogram with an arduino boot loader. I do have an arduino uno for this task. I could not find anything online. Any tips?
TI34? What is that? Google says it's a Texas Instruments calculator. In which case - what gives you the idea that it has a compatable microcontroller inside that one could reprogram? TI makes microcontrollers, so they'd probably use one of theirs, not an arduino compatible one from Atmel... (assuming it's reprogrammable at all - the TI-34 is so common, it's hard to belive they wouldn't have made an ASIC for it) If you find no information online about doing something like that, I would conclude that it has been deemed impractical (due to porting effort required, or because the build tools aren't free) by those who considered it.