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Author Topic: Tiny Basic Microcomputer / Calculator  (Read 4458 times)

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Offline DarkestEx

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Tiny Basic Microcomputer / Calculator
« on: June 23, 2015, 10:00:25 pm »
Heya guys!

A few weeks ago I was working on another of my old projects, which actually got me into electronics. It was a build from the Ben Heck Show.
I started with electronics for building this project, but back then I wasn't able to make it, but now this is not a problem anymore.
The project is to build a small, BASIC computer with an ATMega328p or similar and a 4x20 LCD and a XBox 360 Chatpad.
The programming and the breadboard part is done. There's only one program bug to fix and still needs to be rewired onto a PCB and put into a nice case.
Because I don't have a PIC programmer, I had to write my own Chatpad driver based of the work from another person's reverse engineering.

Here is a picture for you:


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Offline Snektron

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Re: Tiny Basic Microcomputer / Calculator
« Reply #1 on: June 23, 2015, 10:01:19 pm »
Whoa that looks cool! I should do more electronics too <_<
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Offline alexgt

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Re: Tiny Basic Microcomputer / Calculator
« Reply #2 on: June 24, 2015, 12:00:08 am »
Looks awesome O.O, I used to watch the ben heck show...

I want to get into electronics and stuff put the reason I program is because I can do it on the go with my calc :) but you cant do electronics on the go :(
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Offline xlibman

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Re: Tiny Basic Microcomputer / Calculator
« Reply #3 on: July 01, 2015, 12:49:48 pm »
I like it, so far :D. Can you display animations or even do demos on the screen at a fast enough speed?
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Offline p4nix

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Re: Tiny Basic Microcomputer / Calculator
« Reply #4 on: July 01, 2015, 01:10:19 pm »
I think he uses a text only screen, if I'm right.
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Offline DarkestEx

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Re: Tiny Basic Microcomputer / Calculator
« Reply #5 on: July 01, 2015, 01:30:37 pm »
Yes, I can only display text and possibly a 20x16px graphic on the screen.
In theory I could just connect one of my graphic LCD's for a 128x64px image.
« Last Edit: July 01, 2015, 01:37:53 pm by DarkestEx »
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Offline Unicorn

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Re: Tiny Basic Microcomputer / Calculator
« Reply #6 on: July 01, 2015, 01:58:59 pm »
Cool!

So you can have multiple screens?
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Offline DarkestEx

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Re: Tiny Basic Microcomputer / Calculator
« Reply #7 on: July 01, 2015, 02:03:58 pm »
Cool!

So you can have multiple screens?
Yeah, that would certainly be possible :)
  • Calculators owned: TI-84+, Casio 101-S, RPN-Calc, Hewlett-Packard 100LX, Hewlett-Packard 95LX
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Offline xlibman

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Re: Tiny Basic Microcomputer / Calculator
« Reply #8 on: July 02, 2015, 04:57:45 pm »
Yes, I can only display text and possibly a 20x16px graphic on the screen.
In theory I could just connect one of my graphic LCD's for a 128x64px image.

20x16 DOOM clone? :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
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Offline alexgt

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Re: Tiny Basic Microcomputer / Calculator
« Reply #9 on: July 02, 2015, 05:09:07 pm »
I would be DOOMED trying to do that. Almost as bad as Nagoji 4x3 :P
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Offline Snektron

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Re: Tiny Basic Microcomputer / Calculator
« Reply #10 on: July 02, 2015, 06:50:47 pm »
I wanna try building a smartwatch some time :P Maybe you can try that too
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Offline alexgt

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Re: Tiny Basic Microcomputer / Calculator
« Reply #11 on: July 02, 2015, 06:52:53 pm »
That reminds me I just got this
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Offline Unicorn

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Re: Tiny Basic Microcomputer / Calculator
« Reply #12 on: July 02, 2015, 09:06:42 pm »
Nice! :)
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Offline p4nix

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Re: Tiny Basic Microcomputer / Calculator
« Reply #13 on: July 03, 2015, 06:50:10 pm »
Is it possible to build a reasonably flat wearable computer using those components? I mean forearm-mounted? Would be quite interesting. I don't know how big the keyboard and contoller are about, but I always hate those displays because they are way too big imo.

EDIT: schematics would be cool if they are not exactly Ben Heck's, otherwise I'll check them.
« Last Edit: July 03, 2015, 06:52:00 pm by p4nix »
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Offline DarkestEx

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Re: Tiny Basic Microcomputer / Calculator
« Reply #14 on: July 03, 2015, 06:55:39 pm »
Is it possible to build a reasonably flat wearable computer using those components? I mean forearm-mounted? Would be quite interesting. I don't know how big the keyboard and contoller are about, but I always hate those displays because they are way too big imo.

EDIT: schematics would be cool if they are not exactly Ben Heck's, otherwise I'll check them.
Well, if one would go all smd and use an OLED instead of a LCD it could absoltely work.
  • Calculators owned: TI-84+, Casio 101-S, RPN-Calc, Hewlett-Packard 100LX, Hewlett-Packard 95LX
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