Tiny Basic Microcomputer / Calculator

b/Hardware publicado por u/DarkestEx June 23, 2015, 10:00:25 PM

Tiny Basic Microcomputer / Calculator

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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u/Snektron June 23, 2015, 10:01:19 PM

Whoa that looks cool! I should do more electronics too

u/alexgt June 24, 2015, 12:00:08 AM

Looks awesome

, 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

u/Dream of Omnimaga July 01, 2015, 12:49:48 PM

I like it, so far

. Can you display animations or even do demos on the screen at a fast enough speed?

u/p4nix July 01, 2015, 01:10:19 PM

I think he uses a text only screen, if I'm right.

u/DarkestEx 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

u/Unicorn July 01, 2015, 01:58:59 PM

Cool!

So you can have multiple screens?

u/DarkestEx July 01, 2015, 02:03:58 PM

Quote from: Unicorn on July 01, 2015, 01:58:59 PM
Cool!

So you can have multiple screens?

Yeah, that would certainly be possible

u/Dream of Omnimaga July 02, 2015, 04:57:45 PM

Quote from: DarkestEx 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.

20x16 DOOM clone?

u/alexgt July 02, 2015, 05:09:07 PM

I would be DOOMED trying to do that. Almost as bad as Nagoji 4x3

u/Snektron July 02, 2015, 06:50:47 PM

I wanna try building a smartwatch some time

Maybe you can try that too

u/alexgt July 02, 2015, 06:52:53 PM

That reminds me I just got this

u/Unicorn July 02, 2015, 09:06:42 PM

Nice!

u/p4nix 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

u/DarkestEx July 03, 2015, 06:55:39 PM

Quote from: p4nix 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.

Well, if one would go all smd and use an OLED instead of a LCD it could absoltely work.