Archive for the ‘Nano’ Category

Motion-activated bed lighting system for nighttime wandering

Wednesday, August 31st, 2016

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…)

Relive the ‘80s with a MIDI-controlled Scanjet keytar

Thursday, August 4th, 2016

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.

Star Track is an Arduino-powered star pointer and tracker

Monday, August 1st, 2016

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…)

This Arduino machine will sort your Skittles by color

Wednesday, July 20th, 2016

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 a digital and sound reactive kaleidoscope

Tuesday, June 28th, 2016

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…)

This funny robot pets your dog’s head and feeds them a treat

Thursday, June 23rd, 2016

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…)

A DIY digital Arduino clock designed for and by teachers

Monday, June 13th, 2016

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Project-based lessons are a great way to introduce students to the world of electronics. Clearly Jenna Debois agrees, as she has built a DIY classroom clock based on an Arduino Nano. What’s even cooler is that it’s optimized for teachers!  (more…)

Dtto is a self-reconfigurable modular robot

Friday, June 10th, 2016

An entry in this year’s Hackaday Prize, Dtto is a snake-like robot designed to be modular and self-reconfigurable.

Inspired by Bruce Lee’s famous water quote, Dtto can transform into various shapes by changing the position and connection of its 3D-printed modules. As Hackaday points out, each section of Dtto is a double-hinged joint. When two come together, magnets help them align. A servo-controlled latch solidly docks the sections, which then work in unison. Impressively, it can connect and separate segments autonomously – without any human intervention. Creator Alberto believes the versatility of the bot will enable it to perform rescue missions, explore unknown environments, and operate in space. (more…)

Foxes Like Beacons explores alternative navigation systems

Friday, June 10th, 2016

Jochen Maria Weber’s Foxes Like Beacons is an exploratory project using open data of public radio stations with inexpensive, low-power signal detection in order to create an open positioning system. According to the designer:

Today’s satellite based GPS enable and augment uncountable everyday processes, ranging from logistics to fitness trackers and even intimate dating applications. These proprietary systems are mostly invisibly controlled and curated by governments, military and economic actors. Since GPS ubiquitously affect our interactions and experiences with our environment, economy and privacy, Foxes Like Beacons questions this present model, thus opening up space for speculations about alternative navigation systems and new models for interaction.

Open data about public radio stations, transceivers and open source signal detection can be used to calculate geo positions.

So, Weber developed three example devices based on the same technical structure using very low-power, open and off-the-shelf technology. This consists of an omnidirectional antenna, a 4.3″ TFT screen, a compass, gyroscope and barometric altitude sensor, a radio frequency tuner, a battery, an Arduino Nano (for signal processing), and a Rasperry Pi 2. (more…)

Control your DIY quadcopter with one hand

Friday, June 3rd, 2016

Back in 2014, Josef Holmner built his own DIY quadcopter with a flight time of 30 minutes. Impressively, he also developed a wearable controller that enabled him to maneuver his device through the air using just one hand.

As you can see in the video below, pitch and roll are dictated by the angle of his hand, yaw is handled by two push buttons in his palm, and throttle is achieved through the bending of his index finger. (more…)