gutted a remote-controlled car and swapped the parts for an Arduino board. Seeing as Arduino is good for controlling motors and sensors, Randy added a PING ultrasonic sensor to the front of the ...

[Boris Landoni] put together a guide to using an inexpensive 3-axis accelerometer with Arduino. The chip that he chose for the exercise is an MMA7455L made by Freescale. It’s got a lot of nice ...