Aug 21, 2012 · In October 2009, Michael Nash contacted me about publishing his work on disassembling the TI-89 Titanium, comparing the two major hardware revisions, and use …

Mar 29, 2022 · https://hackaday.io/project/60-ti-84-se-backlight. I found this electroluminescent backlight mod but it says it’s for the Ti84. How different is the internals of the 89?

What troubleshooting steps can I try if the TI-89 Family, TI-92 Family or the Voyage ™ 200 graphing handheld will not turn on or function properly? Please Note: Information on battery …

The model is specifically designed for graphing purposes, making it ideal for students and professionals who need to solve complex equations. The calculator runs on battery power and …

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Sep 25, 2024 · I want to design and 3D-print an external frontlight mod for the TI-89 Titanium that takes up to 100mA of power @5V from the USB port and uses it to light a couple LEDs that …

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Nov 2, 2012 · Has anyone tried interfacing to the display of a TI-89 calculator? I bought one at a Junior League sale. It had corroded battery contacts but I figured I could clean them.

The TI-89 is a graphing calculator developed by Texas Instruments in 1998. The unit features a 160×100 pixel resolution LCD and a large amount of flash memory, and includes TI's …

Feb 23, 2002 · Is it possible to add in a white LED acklight to my TI-89? I want a little switch so that when its dark I can just flick the switch and see my TI-89's...