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Flukso USB development board

The Flukso USB development board is a small PCB, intended for development work. It reproduces all features of the Flukso sensor board, but has an FTDI USB-serial chip. It can be connected to any USB port. The software port and hardware reference is on github: You can clone a local copy of the repository using

git clone


  • ATMega644 microcontroller: JTAG, ISP & all relevant other ports are accessible via pinheaders
  • FTDI FT232RL usb-serial converter
  • USB connection
  • 16 MHz crystal

Building the hardware

You need to be able to solder SMD components, I am using the “solder wick” method here (google is your friend). The components are fairly easy to mount. Start with the FTDI and ATMega644 components, then continue with the resistors and capacitors, then the crystal and the large cap, finally install pinheaders and the USB connector.

The layout of the board is fairly simple:

Component overview

Please be careful regarding the orientation of the LEDs, the GND side is on the left in the picture above. See also.

A highres image for your reference: (yes, I know, the yellow LED is missing in action.)

Installing the firmware

The repository contains a folder “software” with an adjusted version of the Flukso firmware for this board. Mainly, the clock speed has been changed and additional adjustments to accomodate the ATMega644, since the original Flukso sensor boards are using an ATMega48.

fluksousbboard.1294827750.txt.gz · Last modified: 2012/10/30 10:37 (external edit)