Instructables user fasaxc only had about 24 hours to make a costume for a party and constructed a playable and wearable giant Gameboy. He made sure he could get a Gameboy emulator running on his laptop and then printed a photo of the front of a Gameboy onto several sheets of paper. It was a quick fix for this costume – he prefers to paint and sculpt. After the glued the papers onto a cardboard box it was time to mount the electronics. The Gameboy’s screen is simply a laptop that fasaxc folded out flat; he used gaffer tape to keep the laptop in place and rested the computer on a cardboard ledge.
At this point, I had the laptop mounted, Tetris loaded and it’d run through its demo loop every minute or two. But I wanted buttons! Sorry for the lack of pictures, I was down to about 2 hours to go at this point…
Time to put my Arduino to work. The path from button to gameboy looks like this:
Button is pushed, closing the circuit from ground to one of the digital input pins (I used the internal pull-ups so the pins normally read HIGH until the button is pushed).
Arduino reads inputs every few msec, detects button push.
Arduino debounces the button push.
Arduino sends signal over its built-in serial port emulator for each button push. (What you see in the Arduino serial monitor.)
Python app reads the serial port, maps the raw data to the correct key to be pushed.
Python app uses “xte” to emulate a keypress, feeding it to the current application. Note: this is Linux-specific, the code would need to be totally different for Windows.
Gameboy emulator sees the keypress and voila(ish)!
Can’t recommend Arduino enough for this sort of thing. I had an LED blinking in 1 min, then serial communication up in 5 mins. Luckily I had some Python code lying around for reading the serial port so the main problem I had to solve was getting the input into the emulator.
We are angry, frustrated, and in pain because of the violence and murder of Black people by the police because of racism. We are in the fight AGAINST RACISM. George Floyd was murdered, his life stolen. The Adafruit teams have specific actions we’ve done, are doing, and will do together as a company and culture. We are asking the Adafruit community to get involved and share what you are doing. The Adafruit teams will not settle for a hash tag, a Tweet, or an icon change. We will work on real change, and that requires real action and real work together. That is what we will do each day, each month, each year – we will hold ourselves accountable and publish our collective efforts, partnerships, activism, donations, openly and publicly. Our blog and social media platforms will be utilized in actionable ways. Join us and the anti-racist efforts working to end police brutality, reform the criminal justice system, and dismantle the many other forms of systemic racism at work in this country, read more @ adafruit.com/blacklivesmatter
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.