2 layers65 × 30 mm
Rgb to hdmi
hoglet67/RGBtoHDMI
Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI
33 parts1kGPL-3.0
2 layers99 × 68 mm
Comixino
issalig/comix352Comix35 stuff
- Size
- 99 × 68 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 33
- Nets
- 77
- Pads
- 214
- Tracks, vias
- 864, 32
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 7 May 2025
- Updated
- 1 Jul 2025
Overview
Comixino is an open-source printed circuit board by issalig, from the issalig/comix35 repository on GitHub. It is a 2-layer board of 99 × 68 mm with 33 parts on 77 nets, routed with 864 tracks and 32 vias.
Its parts include 12 connectors, 7 switches, 4 resistors and 4 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.
README
README.mdcomix35
This repository contains projects for Comix35
comixino
SW and HW for loading (and saving in the future) data/programs without the need of another computer. It is basically a mix of the HSDC and TZXDuino.
SW
Comixino software is basically and adaption of TZXDuino for the COMIX-35. However, communication is not cassette-based but serial is used. By pressing up/down buttons it is possible to navigate through the file system. Then, pressing PLAY will transmit the file to the COMIX-35. Please remember to type "PLOAD" in the COMIX-35 before pressing PLAY. Recording is done similarly. First press RECORD button on comixino, then type "PSAVE" in COMIX-35. However, "record" function does not work correctly as it misses some bytes. If you can help me, please do it.
It is possible to use hardware serial or software serial (comment/uncomment #define SW_SERIAL 1)
HW
Comixino board is made up of an Arduino Uno, OLED screen, and SD card reader and connects to the expansion port. However, it just uses 3 connections /EF4, Q and GND. A pass-trough connection is also available allowing to experiment with the bus signals.
Keycaps
Keycaps for the Comix35 clone (https://github.com/schlae/comix-35)
Case
Modified case based in https://www.thingiverse.com/thing:5405097 with hole for cartridges and left aligned keys. Suitable for printing in small/standard 3d printers.
Parts
33| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | SW_SPST | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW1, SW2, SW3, SW4, SW5, SW6, SW7 |
| 5 | MountingHole | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2, H3, H4, H5 |
| 2 | 100 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R3, R4 |
| 2 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D3, D4 |
| 2 | 300 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2 |
| 2 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2, J7 |
| 2 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J5, J10 |
| 2 | Conn_02x03_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Horizontal | J11, J12 |
| 2 | LED | LED_THT:LED_D3.0mm | D1, D2 |
| 1 | Arduino_Nano_v3.x | Module:Arduino_Nano_WithMountingHoles | A1 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal | J1 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Horizontal | J8 |
| 1 | Conn_01x06 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J6 |
| 1 | Conn_01x08 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J9 |
| 1 | EXPANSION | comix:Edge_Card_Connector_22x2 | J3 |
| 1 | EXPANSION | Connector_PinHeader_2.54mm:PinHeader_2x22_P2.54mm_Vertical | J4 |
Questions
How big is the Comixino PCB?
It measures 99 × 68 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Comixino use?
33 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Comixino KiCad files?
From the issalig/comix35 repository on GitHub, at the commit this page was made from: the board is comixino/hw/comixino/comixino.kicad_pcb and its schematic comixino/hw/comixino/comixino.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Comixino design in my own project?
Its repository states no licence, so its author keeps all rights: ask issalig before reusing the design.
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