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Leaflabs.com

Leaflabs.com
Our Classic Product: The Maple Mini This microcontroller board has most of the same essentials as the original full sized Maple, but in a smaller breadboard-friendly form factor. At the center of the Maple Mini is a 72MHz ARM Cortex-M3 chip, which can be programmed using either our simple graphical integrated development environment or existing industry-standard toolchains. For those who love and are familiar with Arduino, the Maple is offered in an physically-compatible format, complete with pin layouts and a graphic programming environment. Read more »

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Femtoduino with USB from Femtoduino We recognize our top users by making them a Tindarian. Tindarians have access to secret & unreleased features. Their product listings are automatically approved, and do not have to wait for our approval process. AC Light Dimmer - Andrew Jessop March 2006 This project came about because a friend of mine had something similar as a component for his final year electronic engineering project. We decided that we would have a kind of competition to see who could build an AVR based AC light dimmer the quickest. I was interested because I had always wanted to experiment with AC power control, and this was the perfect, simple little project. AC Dimming Theory

The Imaginary Marching Band by scott peterman The Imaginary Marching Band is a series of open-source wearable instruments that allow people to create real music through pantomime. The Imaginary Trumpet With this work, I seek to advocate a more humorous and humane take on the devices that increasingly rule our daily lives. Although the computers we now carry with us wherever we go seem to draw us further and further into digital cocoons, I strongly believe as an artist that the future does not have to be so isolating. The Imaginary Marching Band proposes a reality where technology helps us interact with the real world in more memorable, unique, and ultimately fun ways. It is also a performance piece - an actual band of skilled musicians who will use these new tools to craft a one-of-a-kind stage experience.

Specifications - Smallest Arduino Femtoduino is an ultrasmall libre Arduino compatible board. ATMEGA 328p (QFN32 version) Processor exact same computing power of the Arduino Duemilanove or UNO. ultra light (2g) ultrasmall (20.7×15.2 mm) (.81″ x .6″) 0.05″ connectors 0402 components removing everything not strictly necessary Voltage: VIN connects to the Low Dropout (LDO) Regulator. Accepts 10V Input Voltage on this pin, outputs 5V VCC accepts unregulated voltage. Electronics Since my V-USB tutorials became popular, a recurring theme in the comments section have been people who are obviously motivated to try out the tutorial, but due to limited exposure to C language and command-line are either having trouble following my short instructions to compile the example .hex files, or being scared of the command-line, have tried to use AVR Studio instead, and fail. I have to admit that first I was a bit annoyed by these people – why are they trying to follow a challenging project, when they seemingly have no understanding of how command line, makefiles, C compiler and linking process works? Then, comment by comment, I finally realized that not everyone started coding in the nineties where you launched Windows 3.11 mostly to play Solitaire, and biggest thing in coding productivity was 80×50 text mode which allowed you to have 16-color hacking bliss in your Borland Turbo C++ 3.0 IDE (or RHIDE, after DJGPP came around).

Rapid Assembly for Physical Voxel Fabrication (Digital Materials) Project Members: Jonathan Hiller Imagine a desktop fabricator capable of making perfectly repeatable, arbitrary, multi material 3D objects with microscale precision. The objects would be composed of millions or even billions of small physical building blocks (voxels). Some building blocks could be hard, some could be soft. Some could be red, others green or blue. MicroFTX The FT230X supports bitbang GPIO (general-purpose input/output) modes that allow you to set and read digital pins directly. It’s a great way to let your computer drive a simple binary output, or to read the state of a switch. For full details, see the FT230X website and datasheet.

Charlieplexing LEDs- The theory This instructable is less a build you're own project and more a description of the theory of charlieplexing. It's suitable for people with the basics of electronics, but not complete beginners. I've written it in response to the many questions I've gotten in my previously published Instructables. What is 'Charlieplexing'? It is driving lots of LEDs with only a few pins. In case you're wondering Charlieplexing is named after Charles Allen at Maxim who developed the technique. Say Hello to POLYRO, The Friendly Open Source Robot Tim Payne, the creator of the bipedal humanoid PROTO-2, has developed an open source robot that can be built on a budget. It’s called POLYRO (oPen sOurce friendLY RObot), and makes extensive use of Willow Garage’s TurtleBot as its mobile base. TurtleBot takes advantage of low-cost components like the iRobot Create and Microsoft Kinect sensor, allowing it to autonomously map and navigate its environment. What POLYRO brings to the table is some much needed personality; primarily designed for human-robot interaction, it has a humanoid upper body. POLYRO stands 99cm (3’3″) tall and weighs 8.6kg (19.5 lbs) without its netbook.

ExtraCore The ExtraCore is a 7/8th inch by 13/16th inch (24mm x 21mm) Arduino-compatible board by Dustin Andrews. It has 14 digital input/output pins (6 of which are hardware PWM), 8 analog inputs (6 of which are GPIO), and a 16 MHz crystal oscillator. It runs Optiboot (select “Arduino Uno” in the Boards menu), and has “.100 pitch headers for easy breadboard prototyping.

How to Build a Homemade Clapper to Adjust the Lights and Set the Mood One night, I was trying to draw a circuit on a chalkboard, but it became too dark to see. The next day I bought a new lamp, only to find that the board gave off too much glare. I needed a light I could easily adjust. I could have just installed a dimmer, but where's the fun in that? As an engineer, I like to do projects that use a little electronics, a bit of mechanics and some software.

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