Here’s a project by Everett Robinson which demonstrates how to use an Arduino, Ethernet shield, 2×16 LCD, a breadboard and 2K resistor to produce a web-controlled interactive LCD display. The Arduino generates a simple HTML web page showing the text currently displayed on the LCD, providing an input form to change the LCD text, resulting […]
Author Archives: the machinegeek
Openenergymonitor
emonTx stands for Energy Monitoring Transmitter. It’s a small, open source wireless energy monitoring node. It’s based on the Arduino (Atmega328) and is fully compatible with the Arduino IDE and programmed via an FTDI to USB cable. It’s designed to take inputs from multiple CT sensors, optically from a pulse-output utility meter and from multiple […]
Android ADK with a standard Arduino Uno and USB host shield
Rather than wait for the pricey Google ADK hardware, Mario Bohmer decided to hack away at Android accessory development on his own. Since the Google firmware was based on their dev board, he had to port the firmware and software for use with the Arduino Uno and a USB Host Shield. He reports success using […]
SoundAffects turns sounds of city into music
SoundAffects is a project designed to turn streets sounds into music. It uses an Arduino to read data from street level sensors measuring temperature, light, color, weather, cell phone activity, noise and proximity. This data is then processed using a combination of Jitter, MaxMSP and Ableton Live to produce dynamic musical compositions which passersby can […]
CPLD Commodore C64 memory project
The website 64HDD has plenty of information about mods and upgrades for Commodore C64 enthusiasts. They have an article explaining their exploration of using CPLDs in C64 hardware mods. Their first CPLD project, explained in the article, explores the build of a 256kB memory expansion board originally designed using TTL chips. The project uses the […]
Seeedstudio announces Android Dev Kit Main Board
Seeedstudio is taking preorders for their Seeeduino ADK Main Board now. The dev board, which sells for $79.90, is fully compatible with the Android Open Accessory Development Kit. Estimated shipping date is June 20, 2011.
US DoD gives thumbs up to open source
In a boost to the open source software movement, the United States Department of Defense (DoD) issued a 68+ page report entitled Open Technology Development (OTD): Lessons Learned & Best Practices for Military Software, the DoD outlines the military’s experiences with and approval of open source software. From this paragraph on page 1 of the […]
NYC Hackathon now streaming live
The NYC Hackathon video is now streaming! Around 500 hackers participated from late last night to early today morning at the TechCrunch Disrupt Hackathon in New York, building in teams and waking up or popping enough Redbull this am in order to show off their hacks to notables including VC Jeff Clavier and Canv.as founder […]
Maker Faire on Ustream
If you didn’t make it to Maker Faire, you can check out today’s activities presented on the Maker Faire Ustream channel. You can view the schedule of today’s activities here.
RC joystick transmitter using Arduino
Ian Johnston wasn’t content to use the usual RC control joystick for his RC flying. He decided to reinvent the controller using a couple of old PC joysticks, an Arduino and the Tx PCB from Thomas Scherrer’s LRS kit. You can read the details on this project on Ian Johnston’s website. He also has the […]
10-A H-Bridge motor controller
Chris from PyroElectro has posted his plans for a 10-A H-Bridge motor controller that avoids using the the typical controller ICs. He writes: Motor control is the core heart of robotics. Without locomotion or any movement a robot is dull and lifeless. The H-bridge is a tried and true concept for DC motor control. It […]
CNET free PC Lock™ software today only
OK, so it isn’t open source… but it is free (today only)! CNET is making available FREE downloads of PC Lock™ privacy encryption software for your PC. Just visit this link and follow the instructions. It will provide you with a free download and registration key. You will not be asked for credit card information. […]
C64 sound on Parallax Propeller
The eight-core Parallax Propeller is capable of some pretty amazing things. One use developed by Johannes Ahlebrand is to emulate the famous Commodore 64 sound chip. His SIDcog V 1.0 code object allows the Propeller to accurately emulate an original C64 SID chip. With this code, your Prop can produce retro C64 game sounds like […]
Stepper motor tutorial
Here’s a good tutorial from ExtremeElectronics.co.in explaining the types of stepper motors, their uses, and how to interface them with an AVR microcontroller. It includes the xstepper code library for use with the AVR Atmega16, and demonstrates how to interface the MCU and the motor using a ULN2003A high-voltage high-current Darlington transistor array. This tutorial […]
OTOduino: free Arduino/iPhone interface app
The Hoz writes to inform us of another Arduino related iPhone app known as OTOduino. This free app allows you to interact with an Arduino and monitor/control analog and digital IO ports in real-time via a simple audio jack interface. It’s currently available from the iPhone app store. Check out the OTOduino project support page […]
O3D: OpenSpace3d real time dev platform
I-Maginer has announced the release of the latest version of OpenSpace3d, an Open Source platform for 3D real time project development. OpenSpace3D using the SCOL technology allows users to build fully interactive graphically rich 3D scenes without entering a single line of code, and include human interaction with Wii tools, a joypad, etc. This latest […]
CMU robotics academy materials
Carnegie Mellon University (CMU) has a number of free online materials from their Robotics Academy. The programs, designed to spark interest in robotics among younger students, are known as FIRE, for Fostering Innovation through Robotics Exploration. The program’s mission is to “use the motivational effects of robotics to excite students about science and technology.” The […]
Iphone Arduino simulator app
This video shows a Schogini Systems Iphone app that allows you to simulate Arduino circuit breadboarding and sketch coding on an Iphone. According to the video, you can email the code to your computer for further development or device programming. We couldn’t find it in the app store yet this morning, but this concept looks […]
Discovery kit for the STM32L EnergyLite 32-bit MCUs
The STM32L-DISCOVERY helps you to discover the STM32L ultralow power features and to develop and share your applications. It is based on an STM32L152RBT6 and includes an ST-Link/V2 embedded debugging tool interface, an LCD (24 segments, 4 commons), LEDs, pushbuttons, a linear touch sensor or touchkeys. You can download the product brief here. The Discovery […]
Minibloq: developing a graphical programming environment for Arduino
Minibloq is a graphical programming environment for Arduino and other physical computing devices, such as DuinoBot or Maple. One of its main goals is to bring closer Arduino, Multiplo and other platforms to primary schools, kids and beginners. It’s currently under development, and they are conducting a Kickstarter campaign with the goal of finishing the […]