Adapter 9 from 2040
tebl·C64-JoyKEY·Adapter 9 from 2040/Adapter 9 from 2040.kicad_pcb
About the Adapter 9 from 2040 PCB
Adapter 9 from 2040 is an open source RP2040/RP2350 PCB design by tebl, published on GitHub under the CERN-OHL-1.2 license. It is a 2-layer board measuring 70.7 × 46.7 mm, with 16 components from 13 distinct parts.
Its main chip is the RP2040-Zero, from the RP2040/RP2350 family. Other key parts include the 0.96_I2C_OLED. By type, the board carries 8 switches, 4 modules, 2 ICs and 2 jumpers.
It belongs with the retro computing, keyboards and test & measurement designs in this gallery.
From the project
WASD-style joystick for vintage computers. With an added Arduino Pro Micro you can use it as a USB-keyboard, so if you wanted a DIY streamdeck or Macro-keyboard - then the C64 JoyKEY can do that as well.
Except this time the implementation was based on GP2040-CE, running on a Raspberry Pi Pico variant commonly referred to as the RP2040-Zero. At this point quite a lot of the older Arduino-libraries have hardly seen any features added to it, but as for GP2040-CE - if there's a feature that you can think of, then it's probably already there in some form or another. Adapter 9 from 2040 in its most common setup presents itself to the system you connect it to as a wired Xbox-360 Controller, meaning that you can use it as a controller on quite a lot of different systems.

Main components on the Adapter 9 from 2040
Adapter 9 from 2040 bill of materials (BOM)
16 components, 13 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 0.96_I2C_OLED | 0.96_I2C_OLED_NEW_Top | IC1 |
| 1 | RP2040-Zero | RP2040-Zero_Clean | U1 |
| 4 | Mounting | M3_pin | M1, M2, M3, M4 |
| 1 | P1_GND | SolderJumper-3_P1.3mm_Open_Pad1.0x1.5mm | JP2 |
| 1 | P2_VCC | SolderJumper-3_P1.3mm_Open_Pad1.0x1.5mm | JP3 |
| 1 | S1 | SW_PUSH_6mm | SW1 |
| 1 | S2 | SW_PUSH_6mm | SW2 |
| 1 | L1 | SW_PUSH_6mm | SW3 |
| 1 | R1 | SW_PUSH_6mm | SW4 |
| 1 | B2 | SW_PUSH_6mm | SW5 |
| 1 | B3 | SW_PUSH_6mm | SW6 |
| 1 | B4 | SW_PUSH_6mm | SW7 |
| 1 | Fn | SW_PUSH_6mm | SW8 |
Adapter 9 from 2040 design files
The KiCad project lives in the tebl/C64-JoyKEY repository on GitHub; these links point at the commit this page was built from.
Adapter 9 from 2040: common questions
What microcontroller does the Adapter 9 from 2040 use?
The Adapter 9 from 2040 is built around the RP2040-Zero, from the RP2040/RP2350 family.
How big is the Adapter 9 from 2040 PCB?
The Adapter 9 from 2040 measures 70.7 × 46.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Adapter 9 from 2040?
16 components, from 13 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 Adapter 9 from 2040 design files?
From the tebl/C64-JoyKEY 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 Adapter 9 from 2040 design in my own project?
Yes, under the terms of its CERN-OHL-1.2 license, which tebl chose for the repository.
Can I test firmware for the Adapter 9 from 2040 without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.
More boards in C64-JoyKEY
RP2040/RP2350
C64 Joykey 2040
tebl
99.7 × 74.9 mm64 parts2LCERN-OHL-1.227AVR/Arduino
C64 Joykey
tebl
99.7 × 74.9 mm61 parts2LCERN-OHL-1.227AVR/Arduino
C64 Arcade
tebl
99.7 × 55.2 mm49 parts2LCERN-OHL-1.227Amiga CD32
tebl
58.4 × 38.1 mm29 parts2LCERN-OHL-1.227RP2040/RP2350
Arcade 2040
tebl
81.9 × 52.7 mm27 parts2LCERN-OHL-1.227NEC PC Engine
tebl
58.4 × 38.1 mm25 parts2LCERN-OHL-1.227Gameport
tebl
58.4 × 43.8 mm22 parts2LCERN-OHL-1.227C64 SkeletonKey
tebl
10.4 × 55.3 mm5 parts2LCERN-OHL-1.227Adapter 9 FaceplateB
tebl
70.7 × 46.7 mm4 parts2LCERN-OHL-1.227C64 Joykey Faceplate X1
tebl
99.7 × 74.9 mm4 parts2LCERN-OHL-1.227C64 Joykey Faceplate A1
tebl
99.7 × 74.9 mm4 parts2LCERN-OHL-1.227
Similar boards
RP2040/RP2350
Open Book Abridged Edition
joeycastillo
85 × 115 mm29 parts2LCC-BY-SA-4.08.1kRP2040/RP2350
Corne
foostan
277.2 × 107.5 mm164 parts2LCC-BY-4.07.7kRP2040/RP2350
Corne
foostan
277.2 × 107.5 mm164 parts2LCC-BY-4.07.7kRP2040/RP2350
Jitx design
gusmanb
55.5 × 65 mm26 parts4LGPL-3.05.0kRP2040/RP2350
LogicAnalyzer
gusmanb
57 × 55.2 mm6 parts2LGPL-3.05.0kRP2040/RP2350
Main
google
98 × 71 mm102 parts2LApache-2.02.9k