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Totally Open Arduino-Compatible Hardware Development


All Wulfden Freeduino kits (RBFK328, BBB, RBBB, DorkBoard) come with an ATMega328P with Arduino Uno bootloader burned in. "Setup" is nothing more than selecting the Uno as the board type. Typical setup for Arduino IDE version 1.0 would be;

  • Open Arduino
  • select for 'board' "Arduino UNO"
  • select for 'serial port' whatever COMport you are hooked to
  • open a sketch
  • select File-->Upload

RBBB Freeduino Kit- has all the parts of the RBFK above and adds the RBBB pcboard, all the necessary capacitors and resistors, a green power-on LED, choice of a 1/4 amp or a 1 amp low dropout voltage regulator and all the connectors and pin headers, pre-cut and a 16 MHz ceramic resonator in place of the crystal. It is an ideal starter board with the wherwithall to be useful at any level. This is a breadboard oriented board, but could easily be mounted to a large protoyping board or perf board as aruntime system.

There is no programming adapter on board. It can be programmed via the FTDI USB-TTL cable offered below, or if you have an RS232 serial port availble (either legacy or USB-RS232) the P4 RS232-TTL adapter, also offered below. The nice part of this arrangement is that the programming adapter is a one time buy and can be re-used on other boards as opposed to Freeduino/Arduino boards with USB on-board!

  • The schematic and instructions for the RBBB board are available.
  • The RBBB board was designed to be really bare bones. One aspect of this is the power supply circuitry. If your project already supplies power The real state occupied by the on-board power supply can be sheared off (see pic) at any of two different levels without affecting any other circuitry.
  • Documentation for the Freeduino Kit - 4.1 MB - it was last updated on Sun, 2008 Feb 10 @ 1835 hours - It assembly instructions, schematics, etc for the Freeduino Kit . Included in the manual is the Modern Device manual for the BBB.
  • Complete documentation for the FKit, RBFK, and the FKit Development Set Manual - 2.5 MB - it was last updated on Sun, 2008 Feb 10 @ 1830 hours - It includes general documentation for the Freeduino Kit as well as the various subparts of the Development set. Included in the FKit manual is the Modern Device manual for the BBB in the Wulfden FKit.
  • Purchasers of the one of the bundles with a display will want to download the manual for the K107 LCD Controller - 2 MB - last updated on Sat, 2012 Jul 07 @ 1337 hours
  • Purchasers of the one of the bundles with a P3 or P4 Serial Programming adapter will want to download the P3/P4 Assembly Manual - 2 MB - last updated on [an error occurred while processing this directive]
  • You are going to need to download the Arduino software, which is a complete Integrated Development Environment (IDE) written in Java and available for Windows, Mac, and Linux.
  • If you are using the FTDI USB cable, I strongly suggest visiting the site and downloading the most recent drivers, as of Sept. 2007 the following links are the most recent.

  • If you have a Linux computer, and you have a 2.6 kernel, the driver for the FTDI USB chips is built-in and you are good to go. You can always run uname -a to get the kernel version.
  • The manual for the FTDI USB TTL-232R cable is available for download here.
Really Bare Bones Board PCB







RBBB Freeduino Kit

Purchase 5 or more kits and get a FREE P4B serial programming adapter kit

The Really Bare Bones Board (RevB3), a complete kit with all connectors This comes with an LM2940CT5.0 1A low drop voltage regulator.

Qty = 1


Qty = 3


Qty = 5

RBBB Freeduino Starter

RBBB Freeduino Kit with RS232 serial adapter P4B or BUB USB adapter w/cable




RBBB Freeduino Kit (Bundles)

RBBB Freeduino Kit bundled with RS232 serial adapter P4 or BUB USB adapter w/cable, and 830 hole breadboard

RBBB/P4-RS232 Bundle



RBBB/DorkBoard Breakout Shield

From Wicked Devices, a breakout shield that will permit easy interfacing of your design or (as shown here) easy addition of a small breadboard. Layout is identical to Arduino(tm) boards, so all those shields can now be interfaced with the RBBB or DorkBoard effortlessly.

For more details and orders

9 vdc/300 ma AC Power Supply - this a like-new "pull" from never used equipment. It was designed to be plugged in 24/7. Has standard 18 ga wire with standard coaxial connector. (Radio Shack Type "M" - 2.1 x 5.5 mm) Perfect match for the RBBB board.

RBFK Dorkboard RBBB Freeduino BBB