I tried to make it as small as possible, considering features like:- 4,3" 16:9 pal rca screen- Keyboard- Wifi- Bluetooth- 2 x USB - Battery with charging circuitimage is in a wip stage where i had too resolder the usb hubIm not very sure what battery...
The heavy lifting is done by an ATmega324PA, which generates the video, interprets the PS/2 keyboard scancodes and provides a serial interface. It is clocked at 27MHz. This frequency was chosen because it can provide correct timings for both NTSC and...
The heavy lifting is done by an ATmega324PA, which generates the video, interprets the PS/2 keyboard scancodes and provides a serial interface. It is clocked at 27MHz. This frequency was chosen because it can provide correct timings for both NTSC and...
The L-Star project is an open-source single-board computer design that uses a Propeller microcontroller to control a 65C02 processor. You can use it to emulate early 6502-based computers such as the Apple-1 or the OSI Challenger, or you can invent your...
Features: Standalone, no need for a PC to program and display.16 foreground and background colors (PAL/NTSC) on TV SCART (RGB/Hsync/Vsync), pseudographics and grayscale composite onboard. More colors possible with dithering. Color composite/HDMI/VGA...
A Libre/Open Office spreadsheet BOM file has been added that lists sources for the required parts totaling around $1500. The main rails are made from 3"x3"x1/4" aluminum angles, with 1/16" aluminum angle used as replaceable wear strips on the corners...
## BOM Other than the 3d printed parts (all FDM parts printed in black PETG, all Resin printed in Elegoo ABS-like clear-red) the following was used: ### Base- Raspberry Pi 4 (+SD card)- Corsair K65 RGB 60% mechanical keyboard (don't get too attached...
The Squeezebox Keyboard is a custom-designed ergonomic computer keyboard I have been working on for nearly a year now. The primary design driving factors include: Wanting the keys really close together both within a column and across columnsIf there...
I ordered some 2020 aluminium extrusion and kinda had a rough idea of what I wanted to do with them but I needed to have them in hand before knowing if it would work out. Ive been playing around with this 7″ screen for about a year in different configurations...
1. Introduction Application is 64 steps note looper. Notes are either represented musically or treated as bare data for VCS’s audio registers. Users can choose which row they treat as notes (Note Synth) or audio register data (Glitch Synth). There are...
I always desired to build my own 8-bits computers. Back in the '80s I was a Commodore 16 user, and a lot of friends of mine had C64 and MSX computers. They had sprites and sound, I only had 121 colors. Now I want to build my own system, to bridge that...
ESP_8_BIT is designed to run on the ESP32 within the Arduino IDE framework. Schematic is pretty simple: ----------- | | | 25 |------------------> video out | | | 18 |---/\/\/\/----|---> audio out | | 1k | | | --- | ESP32 | --- 10nf | | | | | v gnd |...
Pi projects are represented by a great variety nowadays. Thus, this great diversity of things to do with Raspberry Pi scales up during such days as Christmas holidays. This happens not only due to the amount of free time that avid makers usually have...