A couple of years ago I picked up an inexpensive sustain pedal for an electric piano at a garage sale. The piano itself wasn’t much to look at, but the pedal intrigued me… it’s a basic on/off switch, but the pedal itself feels fairly robust and I thought it would be a handy switch to have around.
This past week I finally got around to doing something with it! I built a small box that converts the signal from the pedal into a keypress, allowing me to use this pedal as a foot-controlled hotkey for my PC.
Continue reading “DIY PC Footswitch Using a Sustain Pedal”
For one of my recent projects, I needed a way to control some lights powered by a 120V household wall socket. Rather than reverse-engineering some commercial “smart outlets” for the task, I decided to try and do this the old-fashioned way by embedding relays in electrical boxes.
Continue reading “Relay Boxes for Controlling 120V Power with a Microcontroller”
The McCree controller is done! Now it’s time to take a break and do a little postmortem: what worked well, what didn’t, and what I would do differently next time.
Continue reading “McCree Hammershot: Conclusion”
The McCree controller is so close to being done! There’s one last change to make: swapping out the DDR dance pad for a faster controller. That ‘faster controller’ is going to be a Wii Nunchuk, the one-handed extension controller for Nintendo’s 7th generation console.
Continue reading “McCree Hammershot: Nunchuk Movement”
When the Nintendo Wii was released in 2006, there was a lot of talk about their new weird control system. In place of a typical control pad, players would use a one-handed “remote” with infrared sensors and accelerometers in place of a joystick. For those games that required additional controls, players would use an accessory controller in their off-hand.
This ‘accessory’ controller is the Nunchuk. A strange, bean-shaped attachment with a joystick, two buttons, and a three-axis accelerometer. Although the Nunchuk had a lukewarm response when it was first released, it’s the perfect controller for makers who want to add some fine control to their projects.
I purchased a set of 2 cheap knockoff Nunchuks for $10 from eBay. I don’t have access to a genuine Wii remote / Nunchuk, so some of what follows is based off of information I can find online and may be different with a ‘genuine’ article. Your mileage may vary…
Although I’m writing this post with Arduino in mind, most of this information also applies to using a Nunchuk with something like a Raspberry Pi or an ARM-based board.
Let’s get started!
Continue reading “How to Use a Wii Nunchuk with an Arduino”
Although the controller is now operational, it has a few bugs that need to be ironed out and a couple of controls that need to be tweaked to make the game more playable. I learned a lot from the playtests so now it’s time to make some changes.
There are three problems with the controller that need to be fixed: the flashbang, the aiming accuracy, and the aiming speed.
Continue reading “McCree Hammershot Controller: Bug Fixing and Refinements”
The controller is assembled and programmed, so it’s time to put it through its paces, play some games, and see how well it works!
Continue reading “McCree Hammershot Controller: Demonstrations and Playtesting”