Mr. Gareth made another lovely little robot "Mr.Flex" which has URM V3.2 sensor mounted. The best features is its suspension system which brings great mobility. 

 Take a look at the project page: http://letsmakerobots.com/node/7690

Well, we are really busy in developing our new product. Here we have a new product-4WD mobile platform design for Arduino.

Here is the specification:

• 4 DC motors
• 270RPM output
• Wheel diameter:65mm
• Size:200x170x105mm

 Expecting in stock on 10th July. And most of our stuff will be delivered at that time. Really sorry for all the delay.  

Got an idea of using ultrasonic sensor in your project? Even better idea with mulitple ultrasonic sensors? Wait a mintues, it encountes problems. There are serveral difficulties in using several ultrasonic sensors especially the URM37. 

1) You may be out of resources of your PIN.

2) You may have difficulty to control them.

3) You may have some trouble to wire them. 

Well, we have already heard dozens of complains about these problems. Now, we got a solution. A RS485 version URM37. And we named it as URM04. 

 How to link to Arduino?  Have a look after break.  

A fantastic article address the way to burn bootloader to Arduino without an AVR-Writer.  For some reasons, Arduino may lost its bootloader, without a AVR-Writer, it is a dead piece. But with this method, your Arduino can healed with minor operations.

In the article, the author Kimio Kosaka says:

"When we burn the bootloader of Arduino Diecimila, we connected external AVR-Writer to ICSP of Diecimila. I found the method to burn the bootloader by Diecimila itself without external AVR-writer. It is able to do by FT232RL BitBang Mode AVR-Writer software. And, this method is usable in Arduino NG, Arduino Duemilanove and w/ATMega328P too. "

Full content can be found at: http://www.geocities.jp/arduino_diecimila/bootloader/index_en.html