UnoStick / Stickzao

This project is intended to turn your Arduino UNO3 into a Joystick/Arcade Stick peripheral using the Arduino's USB.

• Buttons (8 inputs) and stick (4 inputs) positions are read from the Analog and Digital Ports by the ATmega328P.
• USB Driver communication is done by the ATmega16u2,
• ATmega16u2 receives information from the 328p through UART to figure out the current input.

This works for anything that accepts generic HID Joysticks; PS3, PC, etc.

As I've made this as a project for my microcontrollers class, it may have some input latency. Benchmarking still needs to be done to ensure this isn't going to get you hit by cross-ups when you freaking blocked that.

Slow Installation (no script yet)

Notice: These steps will not-permanently disable your Arduino programming funcionalities. Read on for a walkthrough on how to restore them.

0 - Plug the Board. Ensure the serial programmer is installed by uploading a random Sketch; if this fails you have other problems - you could try the Restoration steps below.

1 - Use AVRDUDES to program the 328p with the BotoesUART.hex file.

The command usually looks like this; you may retrieve a more accurate depiction of it for your environment by having activated Verbose mode on the Arduino platform and then uploading a sketch.

avrdude.exe "-CC:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf" -v -patmega328p -carduino -PCOM3 -b115200 -D -Uflash:w:"$(ProjectDir)Release\BotoesUART.hex":i

2 - Enable DFU mode on your Arduino.

taken from: http://bartruffle.blogspot.com/2013/09/dfu-programming-atmega16u2-on-arduino.html

3 - Acquire Microchip's FLIP , or dfu-programmer for erasing and programming the ATmega16U2

4 - With your DFU programmer, Erase the memory and then Flash the ATmega16U2 with Joystickzao.hex

5 - Power Cycle the whole thing by unplugging, waiting, and replugging the USB cable.

6 - Insert button connections in Analog A5 to A0, Digital 6 and 7

7 - Insert stick connections in Digital 2 to 5.

Do not connect anything to Digital 0 or 1, these are the UART communication ports between both controllers and any extra connections here will make the controller unstable.

Restoring Arduino

0 - Yes, you'll have to go through a few extra steps to uninstall this. Plug the board.

1 - Enable DFU mode on your Arduino. This should also disable the controller.

2 - Use the DFU programmer to erase the memory and then flash Arduino-usbserial-uno.hex onto the ATmega16U2. You may also find this file in your Arduino IDE /hardware/arduino/avr/firmwares/atmegaxxu2/arduino-usbserial folder. I've added mine to the Firmware folder of this repository for convenience.

3 - Power Cycle the whole thing by unplugging, waiting, and replugging the USB cable.

4 - Make sure you've exorcised it entirely by uploading a random Sketch.

Cool Links

• Arduino UNO Rev3's Schematic

• Andrew Mao's class blog post on ATmega16u2 programming + LUFA

• LUFA's homepage. If you use Atmel Studio, download it off their extensions list!

• Picture of boxcat to give you strength

Connector Shield coming soon!