Io8
About the Io8 PCB
Io8 is an open source PCB design by whowechina, published on GitHub. It is a 2-layer board measuring 85 × 50 mm, with 61 components from 17 distinct parts.
Other key parts include the Pico_Trim, TPS7A2042, ADG708BRUZ and PC847. By type, the board carries 10 resistors, 8 diodes, 5 ICs, 4 switches and 3 connectors.
It belongs with the keyboards designs in this gallery.
From the project
Arcade switch replacement
It's the successor to my sanwa_opt project. With it, you can use regular low-profile keyboard switches (or even optical sensors) on arcade buttons.
Special thanks to community projects and developers. And also these projects: RPSiliconKiCad: https://github.com/HeadBoffin/RPSilicon_KiCad
Popn Pico: https://github.com/whowechina/popnpico IIDX Pico: https://github.com/whowechina/iidxpico IIDX Teeny: https://github.com/whowechina/iidxteeny Chu Pico: https://github.com/whowechina/chupico Mai Pico: https://github.com/whowechina/maipico Diva Pico: https://github.com/whowechina/divapico AIC Pico…
Main components on the Io8
Io8 bill of materials (BOM)
61 components, 17 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Pico_Trim | RPi_Pico_SMD_No_USB | U1 |
| 1 | TPS7A2042 | SOT-23-5 | U2 |
| 1 | ADG708BRUZ | TSSOP-16_4.4x5mm_P0.65mm | U3 |
| 2 | PC847 | SOP-16_4.4x10.4mm_P1.27mm | U4, U5 |
| 1 | RGB Out | SH1.0_3P_Solder_Combo | J1 |
| 1 | RGB End | SH1.0_3P_Solder_Combo | J2 |
| 1 | UART | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J3 |
| 3 | 0.1uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | CC1, CC2, CC3 |
| 8 | Conn_01x03_Pin | SH1.0_3P_Solder_Combo | In1, In2, In3, In4, In5, In6, In7, In8 |
| 16 | Conn_01x02_Pin | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | Li1, Li2, Li3, Li4, Li5, Li6, Li7, Li8 +8 |
| 2 | 5V | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | PWR1, PWR2 |
| 4 | ~ | M3_Screw | S1, S2, S3, S4 |
| 1 | 3.3V | D_SOD-123F | Z1 |
| 1 | LM4040DBZ-2.1 | SOT-23-FAT | Z2 |
| 8 | 1N4148WS | D_SOD-323_FAT | D1, D2, D3, D4, D5, D6, D7, D8 |
| 8 | 1K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R4, R5, R6, R7, R8 |
| 2 | R_Pack04 | R_Array_Convex_4x0805 | RN1, RN2 |
Io8 design files
The KiCad project lives in the whowechina/arcade_pico repository on GitHub; these links point at the commit this page was built from.
- LayoutPCB/io8/io8.kicad_pcb
- SchematicPCB/io8/io8.kicad_sch
Io8: common questions
How big is the Io8 PCB?
The Io8 measures 85 × 50 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Io8?
61 components, from 17 distinct parts. The full bill of materials is listed on this page.
Where can I download the Io8 design files?
From the whowechina/arcade_pico repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Io8 design in my own project?
The repository has no license, so all rights stay with whowechina. Use it as a reference, and ask the author before reusing the design.
byrantech
google