https://github.com/ansiwen/dualjoy
Retro joystick USB adapter
https://github.com/ansiwen/dualjoy
amiga atari2600 c64 d-sub de-9 emulation joystick misterfpga raspberry-pi-pico raspberry-pico retro retrogaming retropie rp2040 usb
Last synced: 9 months ago
JSON representation
Retro joystick USB adapter
- Host: GitHub
- URL: https://github.com/ansiwen/dualjoy
- Owner: ansiwen
- License: mit
- Created: 2025-01-06T22:29:39.000Z (over 1 year ago)
- Default Branch: master
- Last Pushed: 2025-01-14T19:01:32.000Z (over 1 year ago)
- Last Synced: 2025-03-16T11:52:10.099Z (over 1 year ago)
- Topics: amiga, atari2600, c64, d-sub, de-9, emulation, joystick, misterfpga, raspberry-pi-pico, raspberry-pico, retro, retrogaming, retropie, rp2040, usb
- Language: C
- Homepage:
- Size: 3.36 MB
- Stars: 5
- Watchers: 1
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE.TXT
Awesome Lists containing this project
README
# DualJoy
This is a firmware for the Rapsberry Pi Pico that turns it into a USB adapter
for _two_ D-Sub 9 joysticks, as they where used for example with the Atari 2600
console and the Commodore C64 and Amiga home computers. They will appear as two
digital hats/d-pads with only one button.
The code is based on the various examples of the Pico SDK and TinyUSB and keeps
their MIT license.
## Usage
You can use the precompiled binary from the release page if you use the same
GPIOs as in the hardware example below:
GPIO | D-SUB pin | Function
-:|:-|:-
10 | 1 (J1) | J1 UP
11 | 2 (J1) | J1 DOWN
12 | 3 (J1) | J1 LEFT
13 | 4 (J1) | J1 RIGHT
9 | 6 (J1) | J1 BTN
18 | 1 (J2) | J2 UP
19 | 2 (J2) | J2 DOWN
20 | 3 (J2) | J2 LEFT
21 | 4 (J2) | J2 RIGHT
17 | 6 (J2) | J2 BTN
Additionally you need to connect pin 8 of both D-SUB connectors with GND on the
Pico.
## Build
If you want to use different GPIOs, you easily can build the firmware yourself.
Like any other pico project, after installing the
[Pico SDK](https://github.com/raspberrypi/pico-sdk) you do:
```
$ mkdir build
$ cd build
$ cmake ..
$ make
```
## Simple hardware example
