2 layers96.7 × 66.4 mm
Stepper analyzer
zapta/legacy_stepper_motor_analyzer
A DYI minimalist hardware stepper motor analyzer with graphical touch screen.
32 parts162CC0-1.0
4 layers86 × 33.5 mm
Atari adapter
Lasanyan/AtariVGA1VGA to Atari CRT adapter
- Size
- 86 × 33.5 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 41
- Nets
- 37
- Pads
- 150
- Tracks, vias
- 270, 40
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 19 Aug 2025
- Updated
- 12 Sep 2025
Overview
Atari adapter is an open-source printed circuit board by Lasanyan, from the Lasanyan/AtariVGA repository on GitHub. It is a 4-layer board of 86 × 33.5 mm with 41 parts on 37 nets, routed with 270 tracks and 40 vias.
It is built around the LM324, M24C02-FMN6P and SDF-130J. Its parts include 9 connectors, 5 resistors, 4 capacitors and 2 ICs. It belongs with the retro computing and games and interfaces and adapters boards of this library.
Main components
3
LM324
SOP-14-1.5V~10V 0℃~+70℃ 24V 250nA 3V~20V 4 40mA 50nA 700uA 7mV 80dB SOP-14 Operational Amplifier ROHSHXY MOSFETOperational Amplifier
M24C02-FMN6P
SOIC-8-40℃~+85℃ 1.7V~5.5V 200 Years 2Kbit 4,000,000 Cycles 400kHz 5ms Hardware write protection function、Noise suppression function、Built-in power-on reset (POR) I2C SOIC-8 EEPROM ROHSSTMicroelectronicsEEPROMSDF-130J
插件Circular Connectors & Cable ConnectorsCUI
README
Readme.mdAtari to VGA Adapter
Converts VGA signals to the 13-pin DIN connector used by Atari SM/ST Series Monochrome CRT Monitors
Features
- Adjustable R/G/B mixdown
- Adjustable output Attenuation/Amplification
- 3.5mm jack for audio passthrough
- VGA passthrough port
- 24C02 EEPROM for custom EDID
- Jumpers for SDA/SCL selection and write-protection
- Plenty of test-points for analyzing and debugging
- Blåhaj
[!IMPORTANT] Some adapters will refuse to set a mode and send signals if it doesn't receive an EDID from the connected display. To provide an EDID you need to either connect a VGA monitor via the passthrough port or install and flash the 24C02 EEPROM with a valid EEPROM, preferably matching your monitor's specs as close as possible. Then use tools like
xrandrto refine your VGA timings.
Parts
41| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | TestPoint | Connector_Pin:Pin_D1.0mm_L10.0mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8, TP9 |
| 5 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J5, J8, J9, J10, J11 |
| 3 | 100R | Potentiometer_THT:Potentiometer_Runtron_RM-065_Vertical | RV1, RV2, RV3 |
| 3 | 2.2k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3 |
| 2 | 100n | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C3 |
| 2 | 10k | Potentiometer_THT:Potentiometer_Runtron_RM-065_Vertical | RV4, RV5 |
| 2 | DE15_Socket_HighDensity_MountingHoles | Connector_Dsub:DSUB-15-HD_Socket_Horizontal_P2.29x2.54mm_EdgePinOffset8.35mm_Housed_MountingHolesOffset10.89mm | J1, J2 |
| 2 | Jumper_3_Open | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP3, JP4 |
| 1 | 10u | Capacitor_SMD:CP_Elec_4x5.4 | C2 |
| 1 | 3.3k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | AudioJack2 | NyaLib:Jack_3.5mm_CUI_SJ-3524-THT_Horizontal | J4 |
| 1 | C | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4 |
| 1 | Jumper_3_Bridged12 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP1 |
| 1 | LM324 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | M24C02-FMN | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5 |
| 1 | SDF-130J | NyaLib:CUI_SDF-130J | J3 |
| 1 | SolderJumper_2_Bridged | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP5 |
The 38 most common of 41 parts.
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Questions
How big is the Atari adapter PCB?
It measures 86 × 33.5 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Atari adapter use?
41 parts, built around the LM324, M24C02-FMN6P and SDF-130J. 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 Atari adapter KiCad files?
From the Lasanyan/AtariVGA repository on GitHub, at the commit this page was made from: the board is atari_adapter.kicad_pcb and its schematic atari_adapter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Atari adapter design in my own project?
Its repository states no licence, so its author keeps all rights: ask Lasanyan before reusing the design.