Monthly Archives:: December 2008

Practice 1, Theory 1

Posted by & filed under electronics.

As part of getting the new workspace space I moved the toxins related to casting and circuit board fabrication out of my apartment. The theory being that the space is semi industrial. So as a test of the new space I took one of Alex Normans board designs and etched it. Since the last time… Read more »

War on Christmas Lights.

Posted by & filed under Dorkbot.

The War On Christmas Lights

Posted by & filed under reference.

War on Christmas Lights from Donald Delmar Davis on Vimeo. Last year I cast a series of led arrays for thing-a-day but hadnt wired them up. With this in mind I ordered some hc595s in the last group order but the snow canceled the meeting. I have been thinking about using the avr to drive… Read more »

Testing the Atmel Mega32U4

Posted by & filed under Avr Development.

While I am wrangling with the appropriate board design, I needed to get started working with the underlying software so I ran up one of the six samples I was able to get from Cascade on a tqfp adapter from measure explorer. The AtMega32U4 http://www.atmel.com/dyn/products/product_card.asp?part_id=4317 is the midrange model in the atmel usb chipset. It… Read more »

To Boldly Go…

Posted by & filed under Dorkbot.


I finally got a chance to wire up the first of my ATMega32U4 samples (see atmel doc7766). Like all of atmel’s usb chips it comes up as a bootloader. Now we get to go through the list of things that are probably broken (starting with dfu-programmer which I already know from fixing it for the at90usb647 is broken).