NEDbook

Description

The first version of my computer was good, but I wanted something that would have its own keyboard and monitor and the ability to take it with me at any time. That's how the NEDbook began.
A tool case serves as packaging. Inside is a small USB keyboard, Arduino nano RP2040 will serve as the main brain, SD card storage and a monitor from an old 15" laptop.
The software is a custom BASIC interpreter with custom commands.

Details

Základní vlastnosti:

15" zeleno-černý LCD monitor
malá standardní klávesnice
internal battery for hours of operation
interní SD karta pro ukládání programů
možnost připojení externí SD karty
vstupní a výstupní sériové a paralelní porty
podpora 47 příkazů (stále se rozšiřuje)
základní grafické příkazy - čára, kruh, čtverec, pixel
programy pro vykreslování fraktálů
základní textový editor – aktuálně ve vývoji

Files

NEDbook_MB.zip

Files for making the motherboard PCB and circuit diagram

Zip Archive - 55.64 kB - 07/05/2023 at 16:29

Download

Components

1 × USB keyboard standard USB keyboard

1 × USB Host Shield 2.0 ADK USB controller for Arduino

1 × Arduino Pro mini the controller brain for the keyboard

1 × 15"LCD an old monitor from a laptop

1 × Arduino nano RP2040 connect central brain

Project Logs

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NEDbook v.0.4 with text editor
Michal • 07/19/2023 at 02:59 • 0 comments

I finished the description of the new fw version for NEDbook with added not only text editor. ARZE.cz - NEDbook v.0.4
Text editor
Michal • 07/07/2023 at 08:46 • 0 comments

Now I'm working on a text editor.
First video
Michal • 07/05/2023 at 18:01 • 0 comments
Mandelbrot set - upgrade
Michal • 07/05/2023 at 16:27 • 0 comments

I managed to tweak the program for calculating the Mandelbrot set. Now showing complete!
Mandelbrot set
Michal • 07/05/2023 at 07:22 • 0 comments
Basic description of FW v.0.3
Michal • 07/05/2023 at 07:10 • 0 comments

I finished the basic description of FW for my NEDbook.
You can view it on my website: ARZE.cz
I also wrote a list of supported commands (47 so far): ARZE.cz
HW is complete
Michal • 07/05/2023 at 04:36 • 0 comments

It took a long time, but NEDbook is practically complete in terms of HW - there is always something to improve.
You can find a detailed description on my website. ARZE.cz
Mounted PCB mother board
Michal • 06/14/2023 at 18:02 • 0 comments

I finally finished the motherboard setup.
We have a GPU
Michal • 06/11/2023 at 05:53 • 0 comments

After several months of searching and trying, I finally have a working GPU.

It supports the display of 80 characters per 24 lines and a graphic resolution of 480 x 288 pixels in monochrome.

Details can be found at:

VGA GPU
The PCBs have arrived
Michal • 06/05/2023 at 17:54 • 0 comments

Today, a week after ordering, the PCB of my NEBkook motherboards arrived.
The boards are professionally made of high quality, including metallized holes. I can't wait to plug them in and test the function. Thanks again to PCBWay manufacturer for quality work.