Author Topic: Calculator tunning ! (Read 9753 times)

Keoni29 · « **Reply #15 on:** February 11, 2013, 12:52:43 pm »

Sweet! I want to hack my trusty 84+ as well, but it will involve some pretty technical stuff. I want to embed my soundchip in it for example. The prototype is rather large, so I need to do some redesigning and use smaller parts. I would also like to have a backlit calc, but I will probably do some more backlight mods on other devices before screwing around with my first 84+'s screen.

persalteas · « **Reply #16 on:** February 11, 2013, 12:57:35 pm »

I have read some tutorials about backlighting TI 83+ and TI-86, maybe it is applicable to the 84+:
http://www.ftp83plus.net/backlightA.htm

Keoni29 · « **Reply #17 on:** February 11, 2013, 03:43:33 pm »

Yeah it's pretty much the same for every device. Remove the reflector and put a diffuser with a light source behind the screen. How you're gonna fit it is different with every device. Maybe a frontlight is easier.

TIfanx1999 · « **Reply #18 on:** February 11, 2013, 05:41:29 pm »

Quote from: persalteas on February 11, 2013, 04:37:55 am

you don't need to remove the screws to make something great (I did not to make the 84+, DJ_O too for his 83+ ).
In addition, it would lose the collateral.

(Oh, please excuse if "tuning" is not the good word... How would you say ?)

Tuning isn't really used that way in English (as far as I know). We would probably just say "customizing" or "modding" (short for modifying). Customizing and modding are broad terms though. They refer to any unique changes they you might have made.

epic7 · « **Reply #19 on:** February 11, 2013, 05:53:49 pm »

Decorating?

Yeong · « **Reply #20 on:** February 11, 2013, 06:03:48 pm »

I think the hardest I tried with tunning is covering the whole calculator with orange-silver gum wrapper.

TIfanx1999 · « **Reply #21 on:** February 11, 2013, 06:07:37 pm »

Lol Yeong!

persalteas · « **Reply #22 on:** February 12, 2013, 02:20:00 am »

Waow ^^

right style for everyone, eh !

SpiroH · « **Reply #23 on:** February 12, 2013, 03:14:55 am »

Quote from: Keoni29 on February 11, 2013, 12:52:43 pm

Sweet! I want to hack my trusty 84+ as well, but it will involve some pretty technical stuff. I want to embed my soundchip in it for example. The prototype is rather large, so I need to do some redesigning and use smaller parts. ....

Have you ever thought about using an FPGA to (try) put most of your hardware inside a smaller footprint? I'm afraid you would need to learn yet another language (hardware) VHDL/VERILOG (Hardware description language). But then again, dutch people normally speak at least a half-dozen languages

, so it may be a worthwhile effort for guys that like hardware modding...
Here is an example:

. Special attention to (in description) :
"It is noteworthy that inside the FPGA there is no soft core micro or CPU, just hardware implemented in VHDL. The hardware consists of a RS232 UART for rx/tx, a SID chip, a 16KB FIFO buffer and some glue logic / state machines to make it all tick along."

DJ Omnimaga · « **Reply #24 on:** February 12, 2013, 04:21:22 am »

Quote from: Art_of_camelot on February 11, 2013, 05:41:29 pm

Quote from: persalteas on February 11, 2013, 04:37:55 am
you don't need to remove the screws to make something great (I did not to make the 84+, DJ_O too for his 83+ ).
In addition, it would lose the collateral.

(Oh, please excuse if "tuning" is not the good word... How would you say ?)

Tuning isn't really used that way in English (as far as I know). We would probably just say "customizing" or "modding" (short for modifying). Customizing and modding are broad terms though. They refer to any unique changes they you might have made.

Yeah I think tuning (or tunning?) is an anglicism used in Quebec and France for what in English you call modding. However, for cars, tuning is used in both French and English (although in French it's obviously not the official way to say it but rather slang). For cars, it means to modify a car appearance or performance. For calcs it's mostly modifying their appearances, but it isn't as common to see it used when it comes to improving their performances (eg by adding backlighting). See this site from France (translated in English) for example, where it only explains how to paint your calc: http://www.ftp83plus.net/ModA.htm and overclocking is in a separate site section. But then check yAronet tuning sub-forum and you'll see backlighting threads too http://www.yaronet.com/sujets.php?f=26 (in French).

One common thing back then was to overclock your TI-83 Plus, but add a 6<>15 MHz switch on the side so that you could switch the calc back and forth between 6 and 15 MHz modes.

Keoni29 · « **Reply #25 on:** February 12, 2013, 06:28:49 am »

Quote from: SpiroH on February 12, 2013, 03:14:55 am

Quote from: Keoni29 on February 11, 2013, 12:52:43 pm
Sweet! I want to hack my trusty 84+ as well, but it will involve some pretty technical stuff. I want to embed my soundchip in it for example. The prototype is rather large, so I need to do some redesigning and use smaller parts. ....
Have you ever thought about using an FPGA to (try) put most of your hardware inside a smaller footprint? I'm afraid you would need to learn yet another language (hardware) VHDL/VERILOG (Hardware description language). But then again, dutch people normally speak at least a half-dozen languages , so it may be a worthwhile effort for guys that like hardware modding...
Here is an example:
. Special attention to (in description) :
"It is noteworthy that inside the FPGA there is no soft core micro or CPU, just hardware implemented in VHDL. The hardware consists of a RS232 UART for rx/tx, a SID chip, a 16KB FIFO buffer and some glue logic / state machines to make it all tick along."

I know what fpga's are, but those are quite expensive compared to a $3 atmega328 microcontroller and you need a PROM to store the hardware configuration in.

SpiroH · « **Reply #26 on:** February 12, 2013, 06:52:27 am »

Quote from: Keoni29 on February 12, 2013, 06:28:49 am

I know what fpga's are, but those are quite expensive compared to a $3 atmega328 microcontroller and you need a PROM to store the hardware configuration in.

Yeah good point, but sometimes students have friends at universities working on FPGAs where you can get them almost for free. Keep looking for 'professional' relationships. Mind you, FPGAs are getting cheaper and cheaper, so, IMO, you should consider that an option when some more complicated project comes about.

Keoni29 · « **Reply #27 on:** February 12, 2013, 09:08:03 am »

I wonder if anyone has been able to reverse engineer the graphics driver of the 84+. If so I could implement that in hardware and modify it a bit so it can drive a different kind of lcd. That would be a nice fpga project. I have no fpga boards, so this goes in the ideas bin for now.

DJ Omnimaga · « **Reply #28 on:** February 12, 2013, 03:25:23 pm »

Kerm on Cemetech had the TICI project for a while in 2004, which involved replacing the calculator screen with a color one, if I remember. I don't remember if it went very far, though (I mean farther than hardware schematics), and now with the TI-84 Plus C Silver Edition I seriously doubt this project has a chance to get revived.

Sorunome · « **Reply #29 on:** February 13, 2013, 12:03:20 am »

I'd love to see a DCS port to the 84pcse thought

Author Topic: Calculator tunning ! (Read 9753 times)

Keoni29

Re: Calculator tunning !

persalteas

Re: Calculator tunning !

Keoni29

Re: Calculator tunning !

TIfanx1999

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epic7

Re: Calculator tunning !

Yeong

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TIfanx1999

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persalteas

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SpiroH

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DJ Omnimaga

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Keoni29

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SpiroH

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Keoni29

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DJ Omnimaga

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Sorunome

Re: Calculator tunning !