28 Apr '14, 2am

"Send Wireless TXT between Two TI Calculators" #kbn

My high school had a policy of wiping all the calculators before any tests, much to my chagrin, since this often meant the loss of complicated, hand-coded basic programs. So I wrote a program in assembly that emulated the shell of the calculator pretty perfectly, except for the memory wipe not actually working, despite displaying the success message. Unfortunately by senior year the administration had caught on to cheats like this, and invested in a ‘master’ calculator from TI that did something to ‘hide’ your programs in memory when connected to the serial port. It was supposed to unhide the programs when reconnected after the test, but I quickly learned that was anything but reliable. Never got around that, but by then I had my own serial linking cable, so I could backup my programs to my laptop.

Full article: http://hackaday.com/2014/04/27/send-wireless-txt-between-...

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