2 layers58.2 × 86.4 mm
2 layers58.2 × 86.4 mm
PiRTO cart
aotta/PiRTO9RTO-Cart version based on Pi Pico
- Size
- 58.2 × 86.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 14
- Nets
- 93
- Pads
- 236
- Tracks, vias
- 606, 36
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 9 Feb 2024
- Updated
- 17 Oct 2026
Overview
PiRTO cart is an open-source printed circuit board by aotta, from the aotta/PiRTO repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 58.2 × 86.4 mm with 14 parts on 93 nets, routed with 606 tracks and 36 vias.
It is built around the 74LVC245AD. Its parts include 4 capacitors, 4 ICs and 2 connectors. It belongs with the RP2040 boards of this library.
Main components
1README
README.mdPiRTO
RTO-Cart porting to Raspberry PI Pico board, with on-screen menu for selecting files.
WARNING! PiRTO was developed and tested with PAL consoles, but for NTSC you need to use the .NTSC firmware that include longer delays for NTSC console
Assembly notes: Use only 74lvc245 IC, not LVC ones are not 3,3 tolerant and may damage your Pico. For SMD pcb version: added 3 jumper, connect 3v3 and Gnd ones, but leave open Shield jumper, connecting to Gnd seems shorting some Pico chinese clones.
Solder the microSD arduino shields on BOTTOM of the board, BEFORE you solder the Pico. Cut the pin to avoid they touche the Pico board on other sides.
Error codes (number of led flashes every second then 2 seconds pause):
1 blinks: Files too big
2 blinks: Verify BIN files error
3 blinks: [mapping] not found in CFG error
4 blinks: Card not initialized
5 blinks: Error opening Root
6 blinks: Map CFG error
1 blink every 800 ms is business as usual
More infor on: https://forums.atariage.com/topic/360687-pirto-preview-new-rto-multicart-powered-by-raspberry-pico/
https://forums.atariage.com/topic/346024-intellivision-rto-multicart-new-multicart/
Ver. 1.1 Upgrade
New version doesn't use anymore hardcoded delay in bus cycles, so it should work for every Intellivision (NTSC,PAL or SECAM). I included the uf2 firmware in binaries folder. Note: with this version some games with more than 8/9 map pages (i.e. Antartic Tale, Wizard of War, etc.) don't work. Use 1.0 if you have no timing issues.
Parts
14| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 74LVC245 | Package_SO:SOP-20_7.5x12.8mm_P1.27mm | U1, U2, U3, U4 |
| 2 | 0.1 uf | Capacitor_SMD:C_0603_1608Metric | C3, C4 |
| 2 | 0.1uf | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 1 | 2x22 card edge connector | Evan's misc parts:edge mounted 44 pin card edge connector (2x22 pin) | J1 |
| 1 | 3v3 | Jumper:SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP1 |
| 1 | Gnd | Jumper:SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP2 |
| 1 | Micro_SD_Card | Library:J_SD_Card-micro_socket_A | J3 |
| 1 | PicoWModule | Raspberry:Raspberry_Pi_PicoW_SMT_THT | RP1 |
| 1 | Shield | Jumper:SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP3 |
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Questions
How big is the PiRTO cart PCB?
It measures 58.2 × 86.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PiRTO cart use?
14 parts, built around the 74LVC245AD. 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 PiRTO cart KiCad files?
From the aotta/PiRTO repository on GitHub, at the commit this page was made from: the board is KicadSMD/PiRTO_cart.kicad_pcb and its schematic Kicad/PiRTO_cart.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PiRTO cart design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).