Arduino debounced toggle

I posed the following problem to my senior design class:  create an arduino sketch that toggles an LED with a button push ( similar to turning on/off a TV with one button).  The students quickly realized that they had to include a deboucing algorithm otherwise the boucing would result in a random on/off state.  Here […]

MOSFET LED Driver

In the past few months we switched all our microscopy illumination to LEDs.  LEDs have many advantages: 1) they are cheap ( few dollars a for high powered LED ); 2) they come in pretty colors; 3) they can switch very fast.  This post will explore how you can control and switch LEDs fast.  Specifically, […]