Let's Make Robots!
It flips an double hourglass every 3 minutes
I made this little silly build because I got my hands on a business gift at work. It's a double hourglass where one glass is regular but the other side lacks the … Read more
Kossel 3D printer inspired pick-n-place robot. no particular purpose yet. As the name implies, every measure is more or less eyeballed. Nothing is precise in this … Read more
Make the shoutbox wide, a super productivety killer
Today I did what I'm best at, getting others to work for me. And todays victim were basile. First a little lure: 2013-10-29 09:12:00| |mogul| |@basile you are … Read more
This is the next iteration of my way to a maze solver. Frame and motors is the same at seen in Wood and Glue roller http://letsmakerobots.com/node/29816 As seen in … Read more
Allows me to program my Arduino via bluetooth, USB not needed any more
I finally figured out how to program my Arduino controlled "Start Here Robot" clone without leaving my chair using bluetooth. Unfortunately it still only works when … Read more
Videos: http://www.youtube.com/watch?v=Pbb9GOWaL4g and http://www.youtube.com/watch?v=mPakG8p3MHE Update: Added schematic for the vacuum system Code word were: … Read more
Beeps then the dog's water bowl is empty
For a friend of mine I made this small alarm that goes off then the dog's water bowl is empty. We set the following design goals: cheapbattery poweredmaintenance … Read more
Enables you to upload code to an ATmega chip Arduino style without a FTDI board
When uploading code to a home brew Arduino clone, one of the magic tricks are to the the target chip to reset at the right moment. Usually the challenge is to … Read more
Program standalone ATtiny / ATmega chips through an Arduino
Using a
1 Program standalone ATtiny / ATmega chips through an Arduino   Read more

Wake-On-Radio when Wake-On-Lan is not an option, and something on saving power

As some of you might already know, I have been working on a Wake-On-Radio system. Some of you will find it boring since it's not about robot building, but on the other hand a few of the sub systems could be useful in a robot... You decide!

I am a grumpy old UNIX sysadmin. I have a few Linux machines running as servers, and a bunch more if we count in friend's machines. I hate to loose systems or data when disks fails. Backups! Daily!