Eine Halterung für den Freeduino welche auf ein Breadboard gesteckt werden kann.

This is a redesign inspired by thingiverse.com/thing:448 then I came upon fdavies' Hexagonal lattice pattern... thingiverse.com/thing:10566
I like the effect.

To newcomers to OpenScad: The scad files illustrate three of the simplest and most useful staples of openscad, dxf import and extrusion, stl import, object substraction.

Re draw of Tinhead's Valkyrie stepper motor board (V2.7)to use surface mount parts in a single sided board to make it easy to fabricate yourself.

This uses I2C to communicate with the main board
(see; letsmakerobots.com/node/9006)

Because it is surface mount I added an isp header to allow programing
and just for fun I added a ftdi header.
I also added a second I2C header to allow easy daisy chaining of stepper boards.

A box for your AVR Dragon!
3 Files are needed , the right order is : 4mm Part, 6mm, 6mm , 3mm and then once again 4mm.
4mm parts are top and bottom, of course you could use thinner or thicker material.
2 times 6mm material is used for the USB opening. 3mm for the ribbon cable opening.
Use 3mm screws to assemble it.
Enjoy!

A design for an USB tiny ISP kit, sold by Adafruit Industries. This thing replaces the supplied black enclosure.

Here's a board I designed back in 2006. At the time, I was obsessed with making easy to use controller modules in the smallest packages possible. This control board should fit into a DIP44 socket.

Includes a nice LDO 5V regulator I found, and an onboard RS232 line converter. The line voltage RS232 pins and the power and ground pins are on a screw terminal header, and just about everything is brought out to the pins on the bottom. I tried to get as much IO as possible, but obviously there are some pins that didn't make it. Includes ISP header, and also has the watch crystal for RTC.

It's a pretty neat board, and it can be assembled by hand for about $20.

This is the Sanguino board. It is an Arduino compatible board based on the atmega644P. This page will tell you how to assemble one, probably from a kit that you bought somewhere. Once you are done, you'll have a sweet little board you can use for prototyping, hacking, or even for a permanent project.

The Sanguino has some awesome features like:

* 64K of flash space
* 4K of RAM
* 2K of EEPROM
* 2 hardware serial ports
* 32 GPIO pins
* 6 PWM pins
* 8 analog pins
* I2C, SPI, etc.

This is a circuit for driving bipolar stepper motor drivers. More information on the RepRap site: make.rrrf.org/smd-1.2

a system designed to record vertical acceleration during an impact and feed the data back over a standard serial connection.

using the acceleration and mass of the object software creates the impulse wave.