Postbag Parts Galore GMH 057

Postbag Parts Galore. This postbag is from a number of packages that came to the Geek. Any Geek needs parts to survive, things like switches, jacks, cables, and cases.

  • 01:00 Mini USB Jacks,
  • 02:12 Banana Jacks
  • 03:29 SPDT Slide Switches Breadboard compatible
  • 05:15 18650 Battery Holders
  • 05:49 BNC to gator clips cable
  • 06:29 USB Volt/Amp/Watt/total time meter
  • 08:30 Warch the Geek burn himself
  • 08:49 Lever switches
  • 09:20 Raspberry Pie Case
  • 10:41 Case for W1209 Temp Thermostat control

I hope you enjoyed this video and if you liked it or my escapades then click on that LIKE button. Any questions or feedback is greatly appreciated.

I have a companion blog https://GeekMustHave.com where I preach technology. Do a Geek a favor and SUBSCRIBE to my YouTube channel. I would really appreciate it.

Now… go build something… go code something

Zombies – The open source monsters

Filmmaker George A. Romero invented our modern concept of a zombie as a slow-walking, flesh-eating ghoul. However his creation has been mimicked and reimagined countless times when other classic monsters such as the Boris Karloff style Frankenstein has been fiercely protected from copyright infringement by Universal Studios. This video explains how a copyright mistake has…

This kinda explains the explosion of zombie based movies, TV Series back 5-10 years ago.  I often attend meetings where at least half of the attendees are zombies, looking for brains.

via Zombies – the open source monsters — Adafruit Industries – Makers, hackers, artists, designers and engineers!

How to Return Ajax Response From Asynchronous JavaScript Call: Methods and Code Examples

When JavaScript is used in conjunction with XML or REST APIs, you can create some useful behaviors with a set of web-development techniques collectively known as Ajax. Let’s take a look at a specific Ajax functionality: returning an Ajax response from an asynchronous JavaScript call. First, What Is Ajax? Asynchronous JavaScript and XML, or Ajax,…

An excellent article on the what, why and how of AJAX.  It’s not just for XML.

via How to Return Ajax Response From Asynchronous JavaScript Call: Methods and Code Examples — DZone Web Dev Zone

A Totally Reto Mode makes a comeback

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Since the inception of ham radio until the early 2000s, the licensing of an individual to become a ham radio operator has required an examination in sending and receiving international Morse code, CW, or “continuous wave” (as opposed to spark transmissions, which were intermittent). The reason for this was that the on/off nature of Morse code was reliable, needing the minimum of technology to implement, and that frequency stability and selectivity of early radios did not facilitate voice transmission and reception. There are many quant videos of military training films for Morse code instruction. To put it simply (which I try to do, sometimes too simply), almost any individual — especially one with musical ability — can learn Morse code in about two weeks to the five words per minute level (WPM), and about six weeks to the 13 WPM level.

I am KD8VON.  I have struggled to learn Morse Code for a few years now.  Nice to see that the effort wasn’t wasted.

Recently I did a DIY project on my YouTube channel changing the standard “Hello World” blink script for Arduino to be just a little different for those amateur radio operators who know the Morse.

GMH 053 DIY a better Arduino blink sketch, Hello World, Ham style

Please visit my channel and Subscribe if you like this video or you are a Ham.

Via: Nuts & Volts Match 2017 Issue

 

 

Understanding JSON Schema

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JSON Schema is a powerful tool for validating the structure of JSON data. However, learning to use it by reading its specification is like learning to drive a car by looking at its blueprints. You don’t need to know how an internal combustion engine fits together if all you want to do is pick up the groceries. This book, therefore, aims to be the friendly driving instructor for JSON Schema. It’s for those that want to write it and understand it but maybe aren’t interested in building their own car—er, writing their own JSON Schema validator—just yet.

This is a web based book on JSON and the practical usage of the JSON Schema.  It starts out with the trike and training wheels and moves all the way up to a racing bike.  I learned something in each chapter I read.  I also see the connection between the JSON schema and the Swagger/OAS definitions.  If you have used WSDL for the schema definition in an XML web service you will appreciate how much simpler and easier it is to read a JSON schema.

I did a post a little while ago about a JSON editor that can take advantage of a JSON schema if it’s available.

There is a print version of this book at the following link.

via: Understanding JSON Schema

Business Intelligence comparisons done dirt cheap

The proliferation of business intelligence platforms, tools, and software stacks is dizzying. It seems that not a week goes by in which a new product isn’t introduced to the market, which grows ever more fragmented and confusing. Specialized business intelligence tools for cloud-based data visualization, Hadoop, text analytics, and other specific solutions for certain analyses…

It’s official I’m doing any more BI comparison posts.  I just can’t keep up.  I swear there is either new BI tool every week or a “New Features” post on an existing one.  Recently I did a comparison of a specific set of BI Tools requested by a State Agency.  The problem was the selected set of tools to review didn’t provide the best solution.  Now there are 19 websites with comparisons out the Yazoo and you don’t have to pay a consultant, or do you?   This week I have 2 favorites Tableau and Microsofts Power-BI.  I’m fickle so next week it may be something different.

via 19 Websites for Business Intelligence Tools Comparison — DZone Big Data Zone

Powershell + JavaScript + ConvertToHTML = Web Reports

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Some tips and tricks on how to use a combination of Powershell, JavaScript, and the ConvertToHTML Powerlet to get some nicely formatted web reports.  This article is in multiple parts and start with the first one or you will get totally lost.

I’m getting better at PowerShell and never thought to combine these things together.  The solution is pretty simple stuff but very creative.  This is a Maker project in my mind.

Via: Database Weekly

 

 

Node.js Emerging as the Universal Development Framework for a Diversity of Applications — JSFeeds

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I would like to invite you to read a amazing and very interesting article about node.js, which I am quoting with a link to the target page: “… Last year and at the beginning of this year, we asked you, Node.js users, to help us understand where, how … more

Well, programmer kiddies as I have said before it’s Node.JS because it’s fracking everywhere.  When Microsoft’s Visual Studio has a special setup just for Node.JS and .net applications then it must be real.  😉

Seriously, take some time to learn the Node.JS basics.  There are 2-ton of YouTube videos and excellent Udemy classes.  You can learn the basics in 2 hours.

via Node.js Emerging as the Universal Development Framework for a Diversity of Applications — JSFeeds