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Author Topic: Pi84 - The Raspberry Pi powered TI-84+  (Read 2234 times)

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Offline DarkestEx

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Pi84 - The Raspberry Pi powered TI-84+
« on: December 17, 2016, 01:13:19 pm »
Hello together!

This is my second go on a Raspberry Pi hearted TI-84+. (Note to mods: I really want to make this a new project without any affiliation to the old so I need a new topic).

I have decided for an early hardware version of the 84+ as it's PCB can be cut smaller than on the new versions.
For the keyboard and power management, I am going to use a Teensy 3.2 that will hook up to the 84+'es matrix.



The Raspberry Pi Zero is the perfect solution for the CPU since it is the smallest and the least power-hungry of all Raspberry Pi's.
For the power supply I will be using a slim power bank or an old Samsung Galaxy S3 mini battery (depending on how much space I have left).

To keep the authenticity, I am sticking to a monochrome LCD, however, mine is 128x64px and has the same physical size as the original screen:
« Last Edit: December 17, 2016, 02:10:36 pm by DarkestEx »


  • Calculators owned: TI-84+, Casio 101-S, RPN-Calc, Hewlett-Packard 100LX, Hewlett-Packard 95LX
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Offline Juju

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Re: Pi84 - The Raspberry Pi powered TI-84+
« Reply #1 on: December 17, 2016, 07:51:26 pm »
That looks real interesting, can't wait to see it done.
  • Calculators owned: TI-83+ (dead?), Casio Prizm (also dead???)
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Offline xlibman

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Re: Pi84 - The Raspberry Pi powered TI-84+
« Reply #2 on: December 17, 2016, 09:05:18 pm »
Nice, is that a backlit LCD? I am curious about if the entire calc keypad will be functional?
  • Calculators owned: TI-57, 73, TI-80 (broken), TI-81, TI-82, TI-83, TI-83+ (broken), TI-83+ (broken), TI-83+SE (broken), TI-84+, TI-84+CSE, TI-84+CE, TI-85, TI-86, TI-89T, TI-92, TI-Nspire, TI-Nspire CX (semi-broken), HP 39gII, HP Prime, Casio fx-7000G, fx-7400G+, fx-7700GE, fx-9750G+, fx-9750GII, fx-9860G, cfx-9850G, FX-1.0+, fx-CG10, fx-CP400
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Offline DarkestEx

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Re: Pi84 - The Raspberry Pi powered TI-84+
« Reply #3 on: December 17, 2016, 10:03:11 pm »
That looks real interesting, can't wait to see it done.
Thanks, I'll keep you all updated :)

Nice, is that a backlit LCD? I am curious about if the entire calc keypad will be functional?
No, I will be removing the backlight as there is no space for it. But yes, the entire keypad will be functional. It will even get mouse emulation.

So I have now also created a better graphic of the keypad matrix:


Just compare it with the Sharp one XD:

« Last Edit: December 17, 2016, 10:32:23 pm by DarkestEx »
  • Calculators owned: TI-84+, Casio 101-S, RPN-Calc, Hewlett-Packard 100LX, Hewlett-Packard 95LX
  • Consoles, mobile devices and vintage computers owned: Hewlett-Packard 100LX, Hewlett-Packard 95LX, Original Commodore 64C, Tektronix AWG2021, IBM X60s, IBM X60t, Nintendo DS Lite, Nintendo GameBoy Color, Nintendo GameCube, Xbox 360, Palm m5


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Offline xlibman

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Re: Pi84 - The Raspberry Pi powered TI-84+
« Reply #4 on: December 18, 2016, 01:20:14 am »
Nice Bejeweled clones

Just kidding :P
  • Calculators owned: TI-57, 73, TI-80 (broken), TI-81, TI-82, TI-83, TI-83+ (broken), TI-83+ (broken), TI-83+SE (broken), TI-84+, TI-84+CSE, TI-84+CE, TI-85, TI-86, TI-89T, TI-92, TI-Nspire, TI-Nspire CX (semi-broken), HP 39gII, HP Prime, Casio fx-7000G, fx-7400G+, fx-7700GE, fx-9750G+, fx-9750GII, fx-9860G, cfx-9850G, FX-1.0+, fx-CG10, fx-CP400
  • Consoles, mobile devices and vintage computers owned: Samsung i5510, Nexus 5, Atari 2600, Lynx, SMS, Game Gear, Genesis, Dreamcast, NES, SNES, N64, GCN, Wii, Wii U, GBA, DS, 3DS, PS2, PS3, PS4, PSP, PSVita, XBox 360, XBOne

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Online p2

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Re: Pi84 - The Raspberry Pi powered TI-84+
« Reply #5 on: December 19, 2016, 09:54:31 am »
*pretending I dont know you killed a functional calc for that project*  :ninja:

it looks really interesting!! :D
Can't wait for an update @DarkestEx :)
  • Calculators owned: ti-83+, ti-84+, ti-84+, ti-84+se, ti-84+se(te), ti-nsphire, ti-nsphire CX-CAS, ti-voyage, ti-voyage, Who reads this list anyways...?
Anyway war sucks. Just bring us your food instead of missiles  :P ~ DJ Omnimaga (11.10.2016 20:21:48)
if you cant get a jframe set up, draw stuff to it, and receive input, i can only imagine how horrible your game code is _._   ~ c4ooo (14.11.2016 22:44:07)
If they pull a Harambe on me tell my family I love them ~ u/Pwntear37d (AssangeWatch /r/)
make Walrii great again ~ DJ Omnimaga (28.11.2016 23:01:31)
God invented the pc, satan the smartphone I guess ~ p4nix (16.02.2017 22:51:49)

Offline DarkestEx

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Re: Pi84 - The Raspberry Pi powered TI-84+
« Reply #6 on: December 19, 2016, 10:11:21 am »
*pretending I dont know you killed a functional calc for that project*  :ninja:

it looks really interesting!! :D
Can't wait for an update @DarkestEx :)
I scrapped about 4 calcs so far for this reiteration of the project.



Edit by p2: removed the "Sent from my BlackBerry DTEK50"
« Last Edit: December 19, 2016, 12:49:16 pm by p2 »
  • Calculators owned: TI-84+, Casio 101-S, RPN-Calc, Hewlett-Packard 100LX, Hewlett-Packard 95LX
  • Consoles, mobile devices and vintage computers owned: Hewlett-Packard 100LX, Hewlett-Packard 95LX, Original Commodore 64C, Tektronix AWG2021, IBM X60s, IBM X60t, Nintendo DS Lite, Nintendo GameBoy Color, Nintendo GameCube, Xbox 360, Palm m5


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Online p2

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Re: Pi84 - The Raspberry Pi powered TI-84+
« Reply #7 on: December 19, 2016, 10:15:26 am »

 :'(  :'(  :'(
where do you take the money for all those calcs...? xDIt has to be like 300-350€ for them? xD

btw is the 84+SE still produced? Or are you sacrificing the last ones of a dying species...?  :ninja:
  • Calculators owned: ti-83+, ti-84+, ti-84+, ti-84+se, ti-84+se(te), ti-nsphire, ti-nsphire CX-CAS, ti-voyage, ti-voyage, Who reads this list anyways...?
Anyway war sucks. Just bring us your food instead of missiles  :P ~ DJ Omnimaga (11.10.2016 20:21:48)
if you cant get a jframe set up, draw stuff to it, and receive input, i can only imagine how horrible your game code is _._   ~ c4ooo (14.11.2016 22:44:07)
If they pull a Harambe on me tell my family I love them ~ u/Pwntear37d (AssangeWatch /r/)
make Walrii great again ~ DJ Omnimaga (28.11.2016 23:01:31)
God invented the pc, satan the smartphone I guess ~ p4nix (16.02.2017 22:51:49)

Offline CVSoft

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Re: Pi84 - The Raspberry Pi powered TI-84+
« Reply #8 on: December 19, 2016, 10:47:21 am »
btw is the 84+SE still produced? Or are you sacrificing the last ones of a dying species...?  :ninja:
It's still in production by Kinpo Philippines.
  • Calculators owned: TI-73, TI-81, TI-81, TI-81, TI-81, TI-81, TI-81, TI-82, TI-82, TI-82, TI-82, TI-82, TI-82, TI-82, TI-82, TI-82, TI-82, TI-82, TI-83, TI-83, TI-83 Plus, TI-84 Plus, TI-85, TI-86, TI-89 Titanium

Offline DarkestEx

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Re: Pi84 - The Raspberry Pi powered TI-84+
« Reply #9 on: December 19, 2016, 11:52:32 am »

 :'(  :'(  :'(
where do you take the money for all those calcs...? xDIt has to be like 300-350€ for them? xD

btw is the 84+SE still produced? Or are you sacrificing the last ones of a dying species...?  :ninja:
I have about 6 working 84+ and 2 broken ones.
Some i bought on eBay but most ones from my previous school which is of course getting rid of them as Germany is moving away from graphic calculators.







Edit by p2: removed the "Sent from my BlackBerry DTEK50"
« Last Edit: December 19, 2016, 12:49:05 pm by p2 »
  • Calculators owned: TI-84+, Casio 101-S, RPN-Calc, Hewlett-Packard 100LX, Hewlett-Packard 95LX
  • Consoles, mobile devices and vintage computers owned: Hewlett-Packard 100LX, Hewlett-Packard 95LX, Original Commodore 64C, Tektronix AWG2021, IBM X60s, IBM X60t, Nintendo DS Lite, Nintendo GameBoy Color, Nintendo GameCube, Xbox 360, Palm m5


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Re: Pi84 - The Raspberry Pi powered TI-84+
« Reply #10 on: December 19, 2016, 12:03:21 pm »
how much do you pay for them aaand if they want to get rid of another load, do you think you could contact me? I'd take a few as well O.O
  • Calculators owned: ti-83+, ti-84+, ti-84+, ti-84+se, ti-84+se(te), ti-nsphire, ti-nsphire CX-CAS, ti-voyage, ti-voyage, Who reads this list anyways...?
Anyway war sucks. Just bring us your food instead of missiles  :P ~ DJ Omnimaga (11.10.2016 20:21:48)
if you cant get a jframe set up, draw stuff to it, and receive input, i can only imagine how horrible your game code is _._   ~ c4ooo (14.11.2016 22:44:07)
If they pull a Harambe on me tell my family I love them ~ u/Pwntear37d (AssangeWatch /r/)
make Walrii great again ~ DJ Omnimaga (28.11.2016 23:01:31)
God invented the pc, satan the smartphone I guess ~ p4nix (16.02.2017 22:51:49)

Offline DarkestEx

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Re: Pi84 - The Raspberry Pi powered TI-84+
« Reply #11 on: December 19, 2016, 12:45:18 pm »
how much do you pay for them aaand if they want to get rid of another load, do you think you could contact me? I'd take a few as well O.O
You could buy one cheap if you really wanted ;)

Btw for the second Calc I am using a currently still fully working casio classpad:


So to clear it up, I am building two calcs. One ti84 and one with the classpad. But the classpad one is not for me.


Edit:








Edit by p2: removed the "Sent from my BlackBerry DTEK50"
« Last Edit: December 20, 2016, 03:36:30 pm by p2 »
  • Calculators owned: TI-84+, Casio 101-S, RPN-Calc, Hewlett-Packard 100LX, Hewlett-Packard 95LX
  • Consoles, mobile devices and vintage computers owned: Hewlett-Packard 100LX, Hewlett-Packard 95LX, Original Commodore 64C, Tektronix AWG2021, IBM X60s, IBM X60t, Nintendo DS Lite, Nintendo GameBoy Color, Nintendo GameCube, Xbox 360, Palm m5


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Offline DarkestEx

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Re: Pi84 - The Raspberry Pi powered TI-84+
« Reply #12 on: July 14, 2017, 02:49:55 pm »
Hola!

I have an update for y'all!

The display is now finally installed and working. ;D
I have also drafted the schematics and ordered the missing parts.

Let's get this one made!




« Last Edit: July 14, 2017, 02:52:24 pm by DarkestEx »
  • Calculators owned: TI-84+, Casio 101-S, RPN-Calc, Hewlett-Packard 100LX, Hewlett-Packard 95LX
  • Consoles, mobile devices and vintage computers owned: Hewlett-Packard 100LX, Hewlett-Packard 95LX, Original Commodore 64C, Tektronix AWG2021, IBM X60s, IBM X60t, Nintendo DS Lite, Nintendo GameBoy Color, Nintendo GameCube, Xbox 360, Palm m5


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Offline AmazoNKA

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Re: Pi84 - The Raspberry Pi powered TI-84+
« Reply #13 on: July 19, 2017, 08:37:21 pm »
Looks nice

Offline AmazoNKA

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Re: Pi84 - The Raspberry Pi powered TI-84+
« Reply #14 on: July 19, 2017, 08:44:27 pm »
Looks nice

 


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