Omnimaga
Calculator Community => Other Calculators => Topic started by: northern_snow on October 03, 2013, 11:54:50 pm
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Nbzwt (Zweb on omnimaga) recently works on the ArithMax EV2, a DIY calculator based on hi-performance STM32F2 microcontrolle.
So many DIY calculators appeared, but most of them have no keyboard, let alone going into mass production.
But this time, things are different! ArithMax will have a keyboard, and we have a plan to put it into production!
BASIC INFORMATION
CPU：i.MX233 ARM9 from Freescale @ <=454MHz
RAM：DDR333 64MB HY5DU121622D 16bit
ROM：？
Screen：2.6'' 640*480 307ppi resistence screen 200nit TD026TTEA1 LTPS TFT LCD
Keyboard：支持外部连接8*8矩阵键盘或通过i2c、spi总线连接键盘。(Professional terms, don't know how to translate XD)
Samples supporting the keyboard frome fx-82es plus and nspire touchpad.
IO：SJTAG，Serial Port, video output, TF card, USB
JOIN US:
https://github.com/nbzwt/ArithMax
READ MORE:
http://zweb.clanmark.com/
http://www.cncalc.org/forum.php?mod=viewthread&tid=9435
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sounds interesting, but this has been tried tons of times, unsuccessfully
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Yeah true. It would definitively be nice if he pulled this off, though.
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The keyboard says external 8x8 keyboard matrix, or an i2c/spi keyboard.
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Although it looks interesting, it's somewhat annoying that most of the available web links are in chinese. Most of us are non-chinese readers and take it as a nonstarter (losing interest very quickly) what's a real shame.
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Although it looks interesting, it's somewhat annoying that most of the available web links are in chinese. Most of us are non-chinese readers and take it as a nonstarter (losing interest very quickly) what's a real shame.
I suppose this topic was the first attempt to introduce it to the english community :) Beside that the github repo seems the be in English.
Interesting project, it seems to be already pretty advanced. I wish the best of luck with it!