Acroname tests the UTM-30LX-EW, UST-10LX, and the URG-04LX-UG01 both indoors and out comparing their capabilities, strengths and weaknesses. Read Article.
Description of Pulse Width Modulation
PWM (Pulse Width Modulation) refers to the concept of rapidly pulsing a digital signal on a wire. Amongst many other uses, it can be used to simulate a varying static voltage. PWM is commonly used for driving motors, heaters, LEDs or lights in varying intensities or speeds. Read Article
Back-EMF Motion Feedback
An article describing the use of voltage generated by a spinning motor to conclude the speed of the motor's rotation. Read Article.
Driving Loads with High Power
One common task in designing and building automation systems is logic circuitry interfacing to high power loads. Read article.
Linearizing Sharp Ranger Data
An example of converting the non-linear voltage output of a Sharp analog infrared range finder into a usable distance measurement using only integer math. Read article.
Sharp Infrared Ranger Comparison
Comparison of effective ranges, sensitivity and angle of view for Sharp infrared (IR) ranger and range finders. Theory of operation of infrared range finders. Read article.