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The ARM based HP-20B calculator is fully hackable, and HP has even released schematics and an SDK. Not a lot of non-volatile RAM, though. http://www.wiki4hp.c
by joe_bleau 17y ago
The ARM based HP-20B calculator is fully hackable, and HP has even released schematics and an SDK. Not a lot of non-volatile RAM, though.
http://www.wiki4hp.com/ http://www.wiki4hp.com/
- wooby 17y agoVery awesome, thank you for the link!