Using an Arduino, along with a Colpitts oscillator and some other electronics, Kale has come up with a rather unique interface for his guitar. Instead of using a foot pedal, he put a strip of aluminum foil inside of a fingerless glove, then attached a homemade metal detector coil and circuit to the back. (more…)
Modern cars tell us all kinds of information about how our vehicles are working and how you are driving. One thing that is generally missing is a display that tells you how many “G’s” (or how much you are pushed back into your seat) your car is pulling. With this clever setup, you can know how much force your tires are putting to the ground (neglecting body-roll factors) in both straight-line acceleration, braking, and even side-to-side turning. (more…)
Time-lapse sequences can be interesting on their own, but if you can add motion to the camera, this adds a really neat element. To give a little extra flair to his video production, GreatScott! built his own motorized slider using stainless steel and aluminum parts. Movement is accomplished via an Arduino Nano controlling a stepper motor, and ball bearings are used to keep the shots smooth. You can see the results and process in the two-part video sequence below. (more…)
Hansi (aka “Natural Nerd”) wasn’t content simply controlling his room’s lighting, so he had his control box illuminate along with it!
In order to control lighting intensity, you could hook up a potentiometer directly, but Hansi decided to instead connect four potentiometers to an Arduino Nano to control an external light source. These four inputs are attached to analog pins on the Arduino, which control a strip of RGB LEDs inside of a partially translucent box. When the knobs are turned, the number of LEDs on display increase or decrease, in different colors depending on which it turned. An external light can then be controlled along with the beautiful controller display. (more…)
Rather than stumble around in the dark or blind himself with a bedside lamp, Maker Scott Clandinin has come up with an Arduino-powered, motion-activated lighting system for nighttime wandering.
The setup is fairly simple. A PIR sensor detects movement, which automatically triggers a hidden strip of RGB LEDs to illuminate a path as you get out of bed. An RTC module keeps the time and ensures that the lights only turn on between 9pm and 8am. (The good news is that the strip will only stay lit for approximately two minutes, and won’t keep you up for the rest of the night.) A small capacitive touch sensor on the bottom of its case can also be used to test the lighting display outside of operational hours. (more…)
The ‘80s may be long gone, but James Cochrane is bringing the keytar back with the help of an old HP Scanjet. For this, the Maker has taken an Arduino, a stepper motor driver, a MIDI interface and an off-the-shelf keyboard, and integrated it into the flatbed scanner’s original features. The end result: the world’s first (and only) MIDI-controlled HP Scanjet keytar.
As he describes in his YouTube video:
This scanner had a hidden command set within the Scanner Control Language which allows you to send musical notes directly to the stepper motor. This is a tedious method where you have to enter the notes and durations manually into a text file (similar to G-code on a CNC machine). I have always used and will always use this method for my old school music videos; however, I wanted to try and build a MIDI-controlled stepper motor.
One day I had one of my HP Scanjets sitting on its side and for some reason it resembled a Roland SH-101 and that’s when I came up with the idea for the HP Scanjet Keytar. What a great way to merge both into a musical instrument.
Those wishing to relive the days of the classic yet quirky keytar are in luck. Cochrane has provided a detailed breakdown of the device in the video below, and has shared its code on GitHub.
Maker and astronomy enthusiast Görkem Bozkurt has built a GoTo telescope mount-inspired system that points and tracks any object in the sky using its celestial coordinates. The aptly named Star Track sports a 3D-printed structure along with a pair of Arduinos (an Uno and Nano), a gyroscope, an RTC module, two low-cost 5V stepper motors, and a laser pointer. (more…)
Do you just really hate yellow Skittles? Only love the red ones? Well, why waste your time sorting them out yourself when an automated machine can do it for you? As part of a recent tutorial, Dejan Nedelkovski has built what we calls the “Arduino Color Sorter” using a TCS3200 color sensor, two hobbyist servo motors, and an Arduino Nano. (more…)
The CALEIDUINO is an Arduino-based digital and sound reactive kaleidoscope, designed to serve as a toy, an art object, and a tool for teaching electronics and programming in a playful yet creative way.
At the heart of CALEIDUINO is a PCB for connecting an Arduino Nano, a TFT 1.8 “display, an analog 3-axis accelerometer GY-61, a piezoelectric, a switch, and a 9V battery–all of which are housed inside a hexagonal methacrylate case. Just like in any kaleidoscope, t three mirrors in triangular prism shape, while an accelerometer collects a user’s movement to generate the psychedelic graphics and sounds. (more…)
While this recent project may look like something straight out of Simone Giertz’s notebook, it’s actually the brainchild of James Cochrane. The engineer, who admittedly loves building all sorts of crazy machines, has developed an apparatus he calls the IoT Robot People/Pet Affectionator.
As its name would suggest, the Affectionator is an Arduino Nano-driven device that automatically gives his dog T-Bone a pat on the head along with a spoon-fed treat at the touch of an arcade button. That’s not all, though. It even allows the pup to reciprocate by pressing his own button and sending over a token of his appreciation on a fork–which in Cochrane’s case is a gummy worm. (more…)