I discuss designating ESPForth as ArduinoForth, which is Forth words calling the Arduino framework.ESPForth is one of the easiest and least expensive ways to learn Forth, however it is based on the Arduino framework. This entry continues to explore how to …

Where I explore filters in electronics and use the Espotek Labrador to demonstrate how to understand filters and create amplitude response curves. This discussion will be absurdly simplistic in comparison to the topic. My goal is to show sufficient …

Notes on using Julia and Pluto.

Additional Julia and Pluto information#

• Julia Documentation
• Julia Cheat Sheet
• MATLAB–Python–Julia cheatsheet — Cheatsheets by QuantEcon documentation
• Plotting Docs
• Julia Blogs
• MIT Class Using Pluto
• A Guide to Building …

ESPForth is one of the easiest and least expensive ways to learn Forth.

esp32Forth Serial Monitor is a version of Forth written by CH Ting. Ting is remarkable in the volume of documentation he provides, as well as the number of versions of Forth he has …

Here are links to Operational Amplifier information, primarily for the design of simple, practical amplifiers.

• What is an op amp?
• How To Bias An Op-amp
• Avoiding Op-Amp Instability Problems In Single-Supply Applications
• Three op amp instrumentation …

Using potentiometers for programmable bias and gain on the amplifier.

A Typical Problem#

If you followed the last couple of experiments, AC Signal Analysis and DC Sweep, you know you have a functional amplifier that will take either a DC level or AC signal …

Using the Labrador to examine the amplifier’s AC signal response.

Compared to the DC Sweep experiment, AC signal response is far easier to do.

Before we dive into how to perform the analysis, let’s discuss why we made the decision to add a bias …

Using the Labrador and a DMM, perform a DC sweep of an inverting amplifier. From our previous lab post we saw the simulation values for a DC Sweep. In this lab, we’ll use the Labrador along with a DMM to determine if our measured values match those …

I’ll use this amplifier to perform multiple tests using the Espotek Labrador.

For more information on using operational amplifiers, I encourage you to look at these sources:

• What is an op amp?
• MAS.836 HOW TO BIAS AN OP-AMP
• Avoiding Op-Amp …

How to resolve a possible software bug on the Labrador.

Update August 1, 2021#

I’ve noticed that the “Paused” check box appears to “delete the buffer and force a reload”. For example, I might see some clipping on a sine wave …