World Maker Faire Sept. 29&30

Anyone going to be in New York for the World Maker Faire? I would love to get you in for free if you mind hanging out in my booth for a couple of hours.... I'm kinda worried how busy its going to bee..... Feel free to bring a cool project to show off too!

Teensy 3.0

Full details are at this Teensy 3.0 Kickstarter Page....

Labor day kit/amp build.

I built a small battery-powered amplifier today.


Not too long ago, I bought a small, inexpensive amplifier kit from tindie.

JTAG Nostalgia

JTAG adapter

Long story short: the GuruPlug JTAG wouldn't even debug the GuruPlug, let alone any other board I tried it with. I knew my freshly-compiled bleeding-edge OpenOCD was at least somewhat functional, because it was able to talk to my TI Evalbot through an onboard FTDI2232 USB-JTAG/UART chip. But it wouldn't talk to the FTDI2232 in the GuruPlug JTAG dongle.

toorcamp 2012

Talk to jmej, or friend jesse.mejia on flickr to add your images to the slideshow!.

PDX Mini Maker Faire - September 15 & 16

what! what!

I'd like to be help out at the pdx dorkbot booth... who's putting this together?

Applications are due no later than 11:59pm on August 5, 2012.

4th Sunday eTextile Workshop

When: July 22, 2012; 4-6pm

What: Introduction to soft circuits

  • Make & Take: LED patch
  • Tech Behind the Beauty presentation

Who: All levels of know-how! Newbies especially encouraged.

Where: Lovecraft Bar, 421 SE Grand Avenue Portland, OR 97214 (Look for the red door on the West side of the street) Due to the location of this event, you must be at least 21 to attend


  • $25 for new participants
  • $10 for those who attended workshop #1

Cash and credit card payments will be accepted before the workshop begins.

All materials supplies are included.

ARM LCD Dev Board Eagle files

Recently I posted about the ARM based LCD development board I showed at a Monday DorkbotPDX meeting. At that time, I was waiting for another revision of the board before releasing the Eagle files. I got the next version back and it looks OK so I've attached the files.
The firmware source code is available on GitHub.

Honey Bee Counter

New project close enough finished to share... thanks to Paul (teensy) and Lean for the help getting this on its way to being done! cheers,

Two Years of Pretty Good Service

I engaged Pingdom to monitor my home sensor network several years ago when I started to depend on it and found it undependable. The recent upgrades at Pingdom had me looking through downtime stats wherein I found my service to myself to be pretty good:


The persistent downtimes of 2010 were replaced by occasional outages when I converted from Arduino with an Ethernet Shield to Teensy running Txtzyme from an old laptop. Recent failures are all attributed to power failures outlasting my aging laptop battery or Comcast changing my IP address. I'm especially pleased that my foam core and spring clip infrastructure has been serving me well.

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