Model-2-IO-Board for m2m3
About the Model-2-IO-Board for m2m3
Model-2-IO-Board for m2m3 is an open source PCB design by Maillouski, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 180 × 190 mm, with 156 components from 39 distinct parts.
Other key parts include the ULN2803A, 74HCT86D,653, OPA3355EA/2K5, CS5213AN and NX3303X. By type, the board carries 67 resistors, 48 capacitors, 15 connectors, 10 jumpers, 8 ICs and 4 test points.
It belongs with the retro computing and audio designs in this gallery.
From the project
Drop-in replacement for the Sega 837-10539 I/O board (Daytona USA twin, Model 2), built around an Arduino Mega 2560. KiCad 10, CC BY-NC-SA 4.0.
A drop-in replacement for the Sega 837-10539 I/O board of the Daytona USA twin cabinet (Sega Model 2), built around an Arduino Mega 2560. It lets an emulator drive the original cabinet: controls, lamps, meters, the original drive board (force feedback) and the original arcade monitor.
Version: V3.2 (2026-10-16). V3 adds an HDMI input with its own HDMI → VGA converter, a stereo audio output and a composite sync that no longer depends on the polarity of H and V. V2 (screen jumper JP8) is kept under the tag v2, and V1, the first board, ordered from JLCPCB on 2026-10-13, under the tag v1.
Main components on the Model-2-IO-Board for m2m3
Model-2-IO-Board for m2m3 bill of materials (BOM)
156 components, 39 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ULN2803A | DIP-18_W7.62mm | U1 |
| 1 | 74HCT86D,653 74HCT86 | SOIC-14_3.9x8.7mm_P1.27mm | U2 |
| 1 | OPA3355EA/2K5 OPA3355EA | TSSOP-14_4.4x5mm_P0.65mm | U3 |
| 1 | CS5213AN CS5213 | QFN-32-1EP_4x4mm_P0.4mm_EP2.65x2.65mm | U4 |
| 1 | NX3303X | QFN-32-1EP_5x5mm_P0.5mm_EP3.1x3.1mm | U5 |
| 1 | AT24C02C-SSHM-T AT24C02 | SOIC-8_3.9x4.9mm_P1.27mm | U6 |
| 1 | TS5V330CPWR TS5V330 | TSSOP-16_4.4x5mm_P0.65mm | U7 |
| 1 | SN74HCT157DR 74HCT157 | SOIC-16_3.9x9.9mm_P1.27mm | U8 |
| 1 | N2550-6002-RB | IDC-Header_2x25_P2.54mm_Vertical | J1 |
| 1 | N2526-6002-RB | IDC-Header_2x13_P2.54mm_Vertical | J2 |
| 1 | B10P-SHF-1AA | JST_NH_B10P-SHF-1AA_1x10_P2.50mm_Vertical | J3 |
| 2 | B12P-SHF-1AA | JST_NH_B12P-SHF-1AA_1x12_P2.50mm_Vertical | J4, J5 |
| 5 | 61300811121 | PinHeader_1x08_P2.54mm_Vertical | J6, J7, J8, J9, J10 |
| 1 | 61301011121 | PinHeader_1x10_P2.54mm_Vertical | J11 |
| 1 | Pin Header 02x18 2.54mm Vertical | PinHeader_2x18_P2.54mm_Vertical | J12 |
| 1 | B5P-SHF-1AA VIDEO | JST_NH_B5P-SHF-1AA_1x05_P2.50mm_Vertical | J14 |
| 1 | 10029449-111RLF HDMI A | HDMI_A_Amphenol_10029449-x01xLF_Horizontal | J15 |
| 1 | XDJK-0271-1650 | RCA_Dual_Stacked_RCJ-22xx_XDJK-0271-1650 | J16 |
| 5 | 61300311121 | PinHeader_1x03_P2.54mm_Vertical | JP1, JP2, JP3, JP4, JP10 |
| 5 | 61300211121 | PinHeader_1x02_P2.54mm_Vertical | JP5, JP6, JP7, JP8, JP9 |
Show 19 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1825910-6 TEST | SW_PUSH_6mm | SW1 |
| 1 | 1825910-6 SERVICE | SW_PUSH_6mm | SW2 |
| 4 | 5002 | TestPoint_Keystone_5000-5004_Miniature | TP1, TP2, TP3, TP4 |
| 1 | LED verte 3 mm | LED_D3.0mm | D1 |
| 1 | GZ2012D601TF 600 Ω @ 100 MHz | L_0805_2012Metric | FB1 |
| 32 | CC0805KRX7R9BB104 100 nF | C_0805_2012Metric | C1, C2, C3, C4, C5, C6, C7, C8 +24 |
| 1 | EEU-FC1C101H 100 µF 16 V | CP_Radial_D6.3mm_P2.50mm | C17 |
| 11 | CL21A106KAYNNNE 10 µF | C_0805_2012Metric | C19, C23, C25, C26, C30, C32, C34, C37 +3 |
| 2 | CC0805KRX7R9BB103 10 nF | C_0805_2012Metric | C39, C40 |
| 2 | CL21A226MOCLRNC 22 µF | C_0805_2012Metric | C47, C48 |
| 13 | RC0805FR-074K7L 4,7 kΩ | R_0805_2012Metric | R1, R2, R3, R4, R5, R6, R7, R8 +5 |
| 26 | RC0805FR-071KL 1 kΩ | R_0805_2012Metric | R14, R15, R16, R17, R18, R19, R20, R21 +18 |
| 13 | RC0805FR-0710KL 10 kΩ | R_0805_2012Metric | R38, R39, R40, R41, R42, R43, R44, R45 +5 |
| 1 | RMCF0805FT470R 470 Ω | R_0805_2012Metric | R47 |
| 3 | RC0805FR-0775RL 75 Ω | R_0805_2012Metric | R48, R49, R50 |
| 3 | RC0805FR-07604RL 604 Ω | R_0805_2012Metric | R51, R52, R53 |
| 3 | RC0805FR-07200RL 200 Ω | R_0805_2012Metric | R54, R55, R56 |
| 3 | RC0805FR-0733RL 33 Ω | R_0805_2012Metric | R57, R58, R59 |
| 2 | RC0805FR-072K2L 2,2 kΩ | R_0805_2012Metric | R66, R67 |
Model-2-IO-Board for m2m3 design files
The KiCad project lives in the Maillouski/Model-2-IO-Board-for-m2m3 repository on GitHub; these links point at the commit this page was built from.
Model-2-IO-Board for m2m3: common questions
How big is the Model-2-IO-Board for m2m3?
The Model-2-IO-Board for m2m3 measures 180 × 190 mm, has 2 copper layers and is 1.4986 mm thick.
How many components are on the Model-2-IO-Board for m2m3?
156 components, from 39 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Model-2-IO-Board for m2m3 design files?
From the Maillouski/Model-2-IO-Board-for-m2m3 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Model-2-IO-Board for m2m3 design in my own project?
It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.
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