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Phillip Schuster built a handy little mult-tool for working on hardware.
This neat little gadget can do things like generate PWM or DAC signals, read serial output of your microcontroller project, as well as several other useful functions. The design of the Little Helper was inspired by the iPod interface. It’s custom touch wheel allows for fast one-handed operation.
The project is open source. You can find the code on Github.
There is some additional discussion of the project on HackADay.
vitormhenrique recently posted about his custom arcade machine over on the forum. This is a great looking cabinet and it even lights up with LEDs when not in use.
The forum post offers some more details about the build. vitormhenrique has made the controller board public on OSH Park and is planning to make the plans and code available as well.
Brendan Ratliff created The Knobber, a tiny MIDI controller with precisely one knob and one button. This compact design is pretty handy when you have limited space and you don’t need the many knobs your favorite controller offers.
Brendan’s website has a good write of the project and also offers the code he wrote.
For the disks Jan hacked a couple of old hard drives for the motors and platters. The disk movement is sensed by IR LEDs and phototransistors and using quadrature encoding.
This video is a good demo of the box in action
Travis Brown breathed some new life into an old amp by adding a retrofitted display, a motorized volume knob, and improvements to the housing.
Years ago Travis got his hands on an old Ford Probe Audio Amp. He got it working and improved the housing for it. Years later he re-visited the amp and did a few upgrades on it, including a motorized potentiometer for volume control, a new housing, and a new display screen. His website has a great write up on the project.
Nomblr turned her dad’s Morse key from the 1950s into a USB keyboard. This is a pretty impressive modernization of an old-time device. It’s even more impressive that this was her first foray into working with electronics.
There is a bit of a write up on the project over on Hackaday.
The code for the project is posted on GitHub.