Luca shows us how to build a controller to adjust speed and rotation direction of a stepper motor: Using the controller, you can adjust the speed (from 0 to 70 RPM, revolutions per minute) and the rotation direction. On the LCD are displayed the actual speed, direction and a progress bar.
Category Archives: Arduino
Control microbes with your mind
Here’s a video by Geva describing how to control microbes with your mind: Paramecia will change their swimming direction in response to an electrical field. With an Ardunio, a hacked brain sensor and a little code you can control your own army of single celled minions with mind power alone. Full build instructions and source […]
Indoor Environmental Quality station +Bluetooth +Thingspeak
Want to test the Indoor Environmental Quality in your home or office. Here’s an Instructable by Donmatito on how to build your own. Indoor Environmental Quality (IEQ) is the measure of comfort and includes factors such as temperature, humidity, pressure, noise level, and indoor air quality. Don’s original goal was to monitor the IEQ of his […]
AD75019 crosspoint analog switch
Paul over at Dorkbotpdx has written an article about his AD75019 crosspoint analog switch: The chip is controlled by a big 256 bit shift register. I just chained the 3 chips in tandem, so the shift register is 768 bits. In the regression tester, I used 3 of these chips to allow any combination of […]
Simple Arduino EMF detector
Here’s a simple Arduino EMF detector by Aaron ALAI: This is an improved version of an Arduino EMF detector from Aaron ALAI. It uses one resistor and a piece of wire to detect if there is any EMF (elector-magnetic field) around. Nice and simple idea! Via PCBheaven.
1937 radio hacked into an iPhone dock
Øyvind Dahl writes, “I just hacked a 75 year old radio into an iPhone dock. I used a simple amplifier circuit, parts from an old speaker, an Arduino, some LEDs and a mini dock plug.” You can find more info on the build at Øyvind’s Build Electronic Circuits website. Via the contact form.
Welcome Arduino Yún – the first member of a series of wifi products combining Arduino with Linux
Welcome Arduino Yún – the first member of a series of wifi products combining Arduino with Linux: Massimo Banzi announced it some minutes ago during his annual “The state of Arduino” presentation at Maker Faire Bay Area: Arduino Yún is the first of a revolutionary family of wifi products combining Arduino with Linux. Yún means […]
Tutorial – Arduino and MC14489 LED display driver
John Boxall over at Tronixstuff has a series of Arduino tutorials. This chapter fifty-one of a series will show you how to use MC14489 LED display driver ICs with Arduino: Recently we’ve been looking at alternatives to the MAX7219 LED display driver IC due to pricing and availability issues (stay tuned for that one) – and […]
DIY 3d laser scanner
Alessandro Grossi developed this DIY 3d scanner. The primary ingredients in this project are readily available and include a line laser, an Arduino, stepper motor, stepper motor driver (up to 12800 steps), 12V power supply, IR LED and a digital SLR camera. While he wrote the image processing script for Matlab, he notes that it […]
Arduino Workshop: A Hands-On Introduction with 65 Projects
Here’s an Arduino Workshop book by John Boxall of Tronixstuff, a hands-on introduction to Arduino with 65 projects: Although there are seemingly endless Arduino tutorials and articles on the Internet, Arduino Workshop offers a nicely edited and curated path for the beginner to learn from and have fun. It’s a hands-on introduction to Arduino with […]
WiFiDuino = WiFi + Arduino
TheHardwarer has designed this WiFiDuino, an Arduino board that has a WiFi module: WiFiDuino is a new Arduino board that has a WiFi module. The circuit is based on the famous open source “Arduino Micro” from Arduino and Adafruit. To add WiFi connection, the new module “CC3000” from TI is used.
Embedded Pi bridges R-Pi or STM32 with Arduino shields
The crew at Element 14 has announced the release of a combo R-Pi/STM32 interface board compatible with Arduino shields. The Embedded Pi is based on the STMicroelectronics STM32F103 MCU and is open-source (see Technical Documents for schematic, layout and BOM). It can operate as a bridge between Raspberry Pi and Arduino shields and in standalone […]
Reusing old Java ME devices in hacking projects
In this video from the Oracle Learning Library, Vinicius Senger and Marcelo Quinta demonstrate how to repurpose old Java ME mobile devices in hardware hacking projects. This talk, which was originally presented at last October’s Oracle Open World conference in San Francisco, concentrates on different ways to use Java ME for educational purposes, as well […]
Spark Core: Wi-Fi for everything (Arduino compatible)
Spark Core: Wi-Fi for Everything (Arduino Compatible) The Spark Core is an Arduino-compatible, Wi-Fi enabled, cloud-powered development platform that makes creating internet-connected hardware a breeze. This little board packs a punch: with a 72 MHz ARM Cortex M3, the best Wi-Fi module on the market, wireless programming, and lots of pin outs and peripherals, there’s […]
ArduinoISP Deluxe Shield updated
Jeff Murchison has some updates on his ArduinoISP Deluxe Shield project: Now with LED indicators (heartbeat, error, and programming) and ATtiny2313/4313 support! The newest version of the ArduinoISP Deluxe Shield, version 2.5 This is an update to an earlier project, the ArduinoISP Deluxe Shield. Check out the original blog post if you haven’t already! If you’re just […]
Karma controller project
William built this Karma controller and wrote a detailed explanation on his blog describing the build: My latest project is the Karma Controller, which has seven buttons to control Reddit Enhancement Suite. I made two revisions. The second is custom etched (which looks super cool!). I’ll also be sending them off to a real PCB shop for […]
Mystery Arduino device makes US TV debut on The Following
Looks like Arduino has made it to the small screen! The Following is an American TV Series which premiered last January and telling the story of former FBI agent Ryan Hardy (Kevin Bacon) and his attempts to recapture serial killer Joe Carroll following the latter’s escape from prison. On the 9th of April Season 1, […]
ENC28J60 and Arduino
Luca wrote a short tutorial on how to develop a small website that gets data from Arduino: In this tutorial, I’m going to show how to develop a small website that gets data from Arduino (using your ethernet shield), stores it and displays it on a chart.
Building a sweep generator for BK 4011
Kerry Wong documented his sweep generator build: In this post I will show you a simple sweep generator I built. It can be used to generate both the sweep waveform and synchronization signal needed for any function generator that has a VCG/VCO input. The sweep frequency can be adjusted from under a Hertz to several […]
Little Bird Electronics “Magpie” Arduino-compatible board review
Tronixstuff has a review of “Magpie” Arduino Uno-compatible board from Little Bird Electronics: Starting with the subject of this review – the “Magpie” board from Little Bird Electronics in Australia. It seems that a new Arduino-compatible board enters the market every week, thanks to the open-source nature of the platform and the availability of rapid […]