Dave has documented his ongoing 3-Phase Brushless DC Motor Project build on his David’s Electronics Test Tube Youtube Chanel. Why buy the controller when you can make it! “The final board layouts will use 28-pin DIP chips. One is programmed to control the motor speed and the other is a dashboard display of sorts. The motor controller will be completely programmable from the dashboard. It monitors the battery voltage and
Remember Big Dog? Well there is a new walking robot king in town. Cornell’s Ranger Robot has just broken the record for distance for a bipedal robot. It took over 65 thousand steps before the battery died! Thanks for the tip Paul. “It took 65,185 steps for Cornell’s 4-legged bipedal robot to walk 108.5 laps on Barton Hall’s 1/8-mile indoor track, setting a new world record for non-stop distance walked
After 3 months of work Peter Cocteau has completed his LEGO Drum Machine. It is based on the LEGO NXT computer. It goes to show how much can be done with the NXT.
If you like to listen to music here is a way to jazz up the experience. We have all seen the boring analog VU meters on either old or high end audio equipment. Simon Inns from Waiting of Friday has rigged up a cool RGB LED VU Meter circuit that uses 3 TLC5940 LED driver chips that are bring controlled by a PIC18F2550 microcontroller. “This project creates a RGB LED
These days when something electronic dies the repair bill is usually so high that it doesn’t make financial sense to repair it since there is no guarantee that the repaired out of warranty item isn’t going to fail for some other reason in a week. When Sam from the Parallax forum was faced with this dilemma with a gate opener he decided to scrap the old gate controller and make
The prize this week is a loupe magnifier, this will let you get a close look at whatever you are working on. This contest will run for one week (July 24 – July 30, 2010) . Ending time is based on central standard time. To enter, identify the item pictured above and give an example of what can be done with it. You don’t need to know the make and
Accepting credit cards can be expensive. If you have a permanent selling location with a phone line or data connection you can use a standard credit card terminal. Or if you are on the go you can use a mobile credit card terminal just like the pizza guy when he comes to your door. With both of these options you need to pay for the equipment and pay some steep
