Reynolds Observations

I had an instance at work where I needed to quickly calculate an estimate for Reynolds Number for 0 gallons/min to 10 gallons/min for several different pipe diameters.

$$Re = \frac{QD}{vA}$$
  • \(Re\) = Reynolds Number (dimensionless)
  • \(Q\) = volumetric flow rate (\(m^3/s\))
  • \(v\) = kinematic viscocity of the …
more ...

Introduction

Throughout the last few years, KiCAD has been my goto tool as a hobbyist and as a professional. I readily admit that KiCAD lacks some of the polish and features found within Altium, Allegro, and PADS. Despite the lack of features, KiCAD has one advantage that those packages did …

more ...

Dispatch Logo

Purpose

This document is intended to provide a guide regarding the use of Dispatch.

Source code may be found on github.

Concepts

Structure

Dispatch architecture

The Dispatch library consists of two primary components, the dispatch source and header and the framing source and header. Dispatch acts as the intermediary between your application …

more ...

Set Pi Time

Introduction

I recently had a work move and wanted to make something of an impression. My ambition to be, both, productive and cool has led me to the relatively simple project of placing a coffee cam in the workplace.

Ideally, I could attach a pi with a camera to the …

more ...

Purpose

Curve Tracer Screenshot

This document is intended to document the curve tracer This document will be updated through revisions and can be used as a persistent reference, regardless of the 'date posted'. As more information becomes available, documentation will be added.

The original post for the curve tracer can be found here …

more ...

Engineering Notation Screenshot

Engineering Notation

Anyone reading this will likely already have a background that covers engineering notation, so I won't go into it deeply. Computer scientists might also call engineering notation a 'human-readable' numbers. Instead of 4096B you might see 4kB or 4.096kB, depending on your precision.

There are more expansive …

more ...

What is It

Python Jumpstart Logo

Python Jumpstart by Building 10 Apps is a course designed as an introduction to Python. This course is not your typical introduction found on Coursera or EDX, which are usually designed around some weeks-long introduction that get you to objects around week 8. This course - which you …

more ...

Load Cells and Electronics

Load Cell Amplifier

I was browsing Sparkfun a few days ago and came across their OpenScale board. The board is basically a load-cell amplifier with a microcontroller interface which will output data - via an FTDI chip - to the PC or other UART at a fixed interval. The microcontroller also has …

more ...

Rework

Hardware

Hardware was received and built up quickly in the past couple of days. In fact, all has progressed more quickly that I initially imagined. Osh Park - those loveable guys - bumped my order up to the 'premium' panel, so I received the boards a week earlier than anticipated!

Rework

That …

more ...

curve trace, collage

Oscilloscope XY Outputs are Working!

Using two PWM outputs and using a couple of simple RC circuits on the board, we have managed to get the XY outputs working well enough to display on any oscilloscope! I now feel that the hardware is feature-complete!

Status

The hardware in github is …

more ...


© by Jason R. Jones 2016
My thanks to the Pelican and Python Communities.