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When I teach the Electronics Measurements class at the TechShop in Austin, I take a lot of pride in showing off the Mixed-Signal Oscilloscope.  We have a Rigol DS1102D as well as a standard DSO.  To help illustrate the power of the combined digital and analog channels, I  created a Mixed Signal Oscilloscope Demo Board, based on a counter,  that has an issue that could be turned on or off.  This board is also my first time making use of OSH Park’s PCB service.

Last Update:  09/24/2013

Status:  Done

Github:  https://github.com/baldengineer/Mixed-Signal-Oscilloscope-Demo-Board

Abstract

As a member of the TechShop in Austin, TX I teach a class on Electronics Measurements.  The class includes a variety of test equipment like power supplies, DMMs, and Rigol oscilloscopes.  One of the oscilloscopes is a Rigol DS1052D which is a “Mixed Signal Oscilloscope.”  In addition to the two 100MHz analog channels, the scope also include 16 digital channel channels.  It is a logic analyzer and oscilloscope in one!

Why is choosing a simple AA battery such a daunting selection process?  Manufacturers are keen on giving their products different names and brag about the chemical technology that makes them up.  However, it is nearly impossible to make package-to-package comparisons of the battery’s capacitor.

Denis Hennessay has a GREAT write up on Measuring Battery Capacity with an Arduino.  In addition to full details on how his project works, Denis even shares the results of several AA batteries.  Nice!