These Tiny Drawbots Put Unique Doodles on Coasters — Make: DIY Projects and Ideas for Makers

In order to produce something interesting to bring to a monthly hardware meetup, Barton Dring created custom laser coaster engraver/cutters. Read more on MAKE The post These Tiny Drawbots Put Unique Doodles on Coasters appeared first on Make: DIY Projects and Ideas for Makers.

This design is the 3rd evolution of marking up a coaster.  Watch the video of the machine in action, it’s mesmerizing.

via These Tiny Drawbots Put Unique Doodles on Coasters — Make: DIY Projects and Ideas for Makers

Data Driven Documents (D3), API Server (Cdata) Generate REST Server 80+ Data Sources.

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D3.js is a JavaScript library for producing dynamic, interactive data visualizations in Web browsers, using the widely implemented SVG, HTML5, and CSS standards. The CData API Server enables you to generate REST APIs for 80+ data sources, including both on-premises and cloud-based databases. This article walks through setting up the CData API Server to create a REST…

I have used D3 in concert with C3 to create a data visualization front end to a data warehouse.  D3 has a ton of features but is difficult to use out of the box for the novice user.  The C3 library puts a layer of smarts on top of D3 making it much easier to get started in graphic visualizations.  I’ve also used CData product to get an ODBC connection to Google sheets in order to analyze and transfer results from a Google form survey to a data warehouse.  CData products are very good just be willing to pay for that excellence.

This article is a good read because it combines the two to assemble a REST service and use it to provide the data feed to D3.

via Building Dynamic D3.js Web Apps With Database Data — DZone Web Dev Zone

FreeCommander XE and Powershell

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FreeCommandwe XE is a great replacement for the standard Windows Explorer.  It comes in standard installations and a portable version.  This can be configured to replace the Windows Explorer when you press (Windows)+E keys.   There is a DOS function under tools or keyboard shortcut (CtrL)-D that opens up a DOS Command Line.  There is also an option to have a small text box at the bottom to run DOSCMDS on the fly. Nice!  I have forced myself to use Powershell for the Windows command line.  How do I get FreeCommander to open Powershell instead of the DOS CMD line?

To start the DOS CMD in FreeCommander.

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The command line is the standard DOS command line with the title changed to FreeCommander

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Let’s change it to open Powershell instead.  Start by opening up the settings.

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Then open the settings to change the DOS configuration.

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Now it’s as simple as entering in the path to your Powershell command.  Yea, that’s not necessarily that simple.  The path name can vary from machine to machine and how PowerShell was installed.

On my Windows 10 system press the (Windows) key and start typing “powershell”.

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Now right-click on the Windows Powershell (Desktop app) to open up some options.  We want to know the path where Powershell is located.  I’m thinking the “Open file location” will work.

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This opens up a Windows Explorer window to where your Powershell is located.  To get the full path name you have to manually combine the File Name, then click on the directory to expand the path name, then paste them all together.  Still pretty much a pain in the ass.

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Let’s try a trick here.  Right-click on the “Windows PowerShell” command, then select the properties for this command.

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The “Target” is the path to the Powershell command.  Look, Windows even highlighted it for you.  If it didn’t, then highlight it manually.  Press (Ctrl)-C to copy it.

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Then paste (ctrl)-v the path it into the “DOS box command specifications” and press OK.

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Now when you click on (Tools)->(Dos) or press (Ctrl)-d, the wonderful, glorious PowerShell command line window opens up and you can CmdLet your way to heaven.

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Welcome to the New-Order.

Visit my YouTube channel to fill up on your technoGeek desires.  Subscribe if this blog post helped you.

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GMH 055 DIY Portable, Battery-Powered, 1-37 volt Power Supply

This DIY project takes an unused tobacco tin with a handful of parts and turns it into battery powered, rechargeable, 1v to 37v adjustable power supply. The center of the project is an XL6009 Buck/Boost converter. By swapping out the 10K trimmer pot on the board with a full-size Helipot and precision adjusting knob it’s possible to dial in the precise voltage needed. The LED displays both voltage in red and amperage in blue. The various outputs include a full sized USB, 2.1mm, and banana jacks. The project case was wrapped in Carbon Fiber Vinyl to give the power supply a much more modern look.

XL6009 Buck/Boost Converter https://www.aliexpress.com/item/XL600… $1.60

10K Precision Pot with fine adjustment locking knob https://www.aliexpress.com/item/1Pc-1… $2.46

Deja Vu Tobacco tin, Electronics Goldmine $2.49 http://www.goldmine-elec-products.com/prodinfo.asp?number=G20664

DPDT Toggle switch https://www.amazon.com/gp/product/B00… $0.69

USB A Panel mount jack https://www.amazon.com/gp/product/B00… $5.95

2.1mm Power Jacks https://www.aliexpress.com/item/UXCEL… $0.32

2 Series 18650 charging and protection module https://www.aliexpress.com/item/2S-8-… $1.39

18650 Battery Holder https://www.aliexpress.com/item/5-Pcs… $0.29

Digital Volt / AMp meter, 100 volts 10 amps https://www.aliexpress.com/item/High-… $1.90

18650 Battery 3000ma https://www.amazon.com/gp/product/B01… $4.20

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

HTTP request and Node, so many solutions, so little time.

Making HTTP requests is a core functionality for modern languages and one of the first things many developers learn when acclimating to new environments. When it comes to Node.js there are a fair amount of solutions to this problem both built into the … more

If you’re using Node to develop applications or servers you will need to handle HTTP requests.  The standard Node HTTP library is good but there are some options including promises, Super Agent and Ajax to name a few.  While it’s not rocket science this article comes from the experiences with NASA.

via HTTP Requests in Node.js — JSFeeds

30 Second API mock servers using JSON-Server and Node, Quick and Dirty.

In the UK we have a chef called Jamie Oliver and over the years he has created lots of TV episodes and also a book on how to make a complete family meal in 30 Minutes – The premise of this, is that time doesn’t have to be an excuse not to make healthy food […]

There are times when you need a mock server for a REST API that returns JSON results and you need it now!!  This article goes over the process to create one on your local system which could be transferred to a server.    You create a JSON file, simple text file,  with the data in it and JSON-Server writes a full API service around it.  It can do all the CRUD you want and support queries.

There are a few restrictions like having a key field requirement in each table with the identical name.  (IE: _id) .  Most of my work requires using the key that was already in the database (ie: benficiaryID, providerNumber, DiagCode).  Moving this to a server will require some technical talent that many companies don’t have.

I have used Mockable IO to provide mock API services that are server based and need to be accessed by developers outside of a corporate firewall.  The free version is enough for most projects to get started.

No matter which mock server you use be prepared to take a considerable amount of time to mock up the results sets you expect the API service to provide.

 

 

 

 

 

via 30 Second APIs… — Danny Dainton

GMH 051 Project Build DIY Overhead Camera Rig – “Natalya”

Project build of a DIY overhead camera rig to replace the first one I made from PVC pipe. Video of the first overhead rig called “Charlotte” is at https://www.youtube.com/watch?v=YVlhEDTJ7Zk&t=512s. The new one is made from cast iron pipe and mounted directly to the table. The stronger sturdier one is called “Natalya”

Video also has some of the lessons learned from the use of PVC pipe and admitting failure so those lessons can be appreciated.

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…

 

GMH 047 Postbag Black Decker Gryo Screwdriver

Glowing Luminous cartoon pattern fidget spinner Hand Spinner For Autism and ADHD Increase Focu Keep Hands Busy $1.50
https://www.aliexpress.com/item/White-Black-Tri-Spinner-Fidget-Toy-Plastic-EDC-Hand-Spinner-For-Autism-and-ADHD/32790549903.html

Tri-Spinner Fidgets Toy spinner hand EDC Sensory Fidget Spinner For Autism and ADHD Kids/Adult Funny Anti Stress Toys MBF68 $8.75
https://www.aliexpress.com/item/White-Black-Tri-Spinner-Fidget-Toy-Fidgets-Hand-Spinner-For-Autism-and-ADHD-One-hand-spiral/32792140521.html?spm=2114.13010608.0.0.h9mSzj

Portable Black Straight Bend Anti-static Plastic Tweezer Heat Resistant Repair Tool Free Shipping $1.55
https://www.aliexpress.com/item/Portable-Black-Straight-Bend-Anti-static-Plastic-Tweezer-Heat-Resistant-Repair-Tool-Free-Shipping/32626897076.html

10x 22mm wood cutting disc dremel rotary tool circular saw blade dremel cutting tools for woodworking tool Dremel accessories $2.19
https://www.aliexpress.com/item/10x-22mm-wood-cutting-disc-dremel-rotary-tool-circular-saw-blade-dremel-cutting-tools-for-woodworking/32585891471.html

HSS High-speed-steel Circular Wood Cutting Cutoff Saw Blade Wheel Discs Mandrel for Dremel Rotary Power Tools w/ 1 Mandrel 5PCS $3.95
https://www.aliexpress.com/item/HSS-High-speed-steel-Circular-Wood-Cutting-Cutoff-Saw-Blade-Wheel-Discs-Mandrel-for-Dremel-Rotary/32672300000.html

Black & Decker BDCS40G 4-Volt MAX Gyro Screwdriver $45
https://www.amazon.com/gp/product/B008R5259Y/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

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… remember measure twice

GMH 041 Product Review Portable Signal Generator $20

This is a product review of a small, portable, low-frequency signal generator that I intend on adding to my instruments case. This unit is nicely packaged and runs on a standard 9-volt battery. For $18.99 it is a good start.

Function (waveform) signal generator. It can produce some special periodic time function waveforms (sine wave, Fang Bo, triangle wave, sawtooth wave and pulse wave, etc.), the frequency range can be from a few micro he to tens of MHz function signal generator in the circuit experiment and equipment detection has a very wide range of uses. So the learning and design circuit will also be used to.

https://www.aliexpress.com/item/DDS-low-frequency-signal-generator-sine-wave-Fang-Bo-triangle-wave-Ju-Chibo/32425436576.htm

DDS signal generator parameter:

The frequency range of 1HZ-65534Hz is: DDS. (almost no distortion, the enlarged part of the TL082)

High speed (HS) Fang Bo: 1MHZ/2MHZ/4MHZ/8MHZ signal;

The offset amplitude of the DDS signal can be adjusted by two potentiometers;

DDS signal: sine wave, square wave, sawtooth wave, reverse zigzag wave, triangle wave, ECG wave and noise wave.

1602 LCD LCD screen;

Intuitive 5 key keyboards.

Step frequency: 1, 10100100010000Hz;

Automatically recover the last time after the power supply.

Offset: 0.5pp-5Vpp

Amplitude: 0.5Vpp-14Vpp

Output impedance: ohms 20-200

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… remember measure twice

GMH 040 Postbag Soldering Pad, ATTiny167, ATMega32U4, ESP8266, Mega 2650

The Adafruit package will be opened in another Postbag video.

Soldering Pad Heat-resistant Heat Gun BGA Soldering Station Repair Insulation Insulator Pad Desk Mat Maintenance For Platform $4.54

https://www.aliexpress.com/item/Soldering-Pad-Heat-resistant-Heat-Gun-BGA-Soldering-Station-Repair-Insulation-Insulator-Pad-Desk-Mat-Maintenance/32745264673.html

5V 8W Mini Portable USB Electric Powered Soldering Iron Pen Tip with Touch Switch Protective Cap $6.19

https://www.aliexpress.com/item/5V-8W-Mini-Portable-USB-Electric-Powered-Soldering-Iron-Pen-Tip-with-Touch-Switch-Protective-Cap/3278881.html

L298N Dual H-Bridge Stepper Motor Driver Board For Arduino $1.42

https://www.aliexpress.com/item/L298N-Dual-H-Bridge-Stepper-Motor-Driver-Board-For-Arduino/32392774289.html

ESP8266 Web Sever serial WiFi expansion board shield ESP-12E for UNO r3UNO R3 DIY $5.20

https://www.aliexpress.com/item/ESP8266-Web-Sever-serial-WiFi-expansion-board-shiled-ESP-12E-for-arduino-uno-r3UNO-R3/32614104775.html

3.2 inch TFT LCD module Ultra HD 320X480 + MEGA 2560 R3 Board and SD Card slot+ USB Cable $13.78

https://www.aliexpress.com/item/3-2-inch-TFT-LCD-module-Ultra-HD-320X480-MEGA-2560-R3-Board-USB-Cable/32604352634.html

0.96 I2C IIC SPI Serial 128X64 Blue and Yellow OLED LCD LED Display Module for $2.80

https://www.aliexpress.com/item/0-96-I2C-IIC-SPI-Serial-128X64-Blue-and-Yellow-OLED-LCD-LED-Display-Module-for/32602446259.html

CP2102 USB 2.0 to UART TTL 5PIN Connector Module Serial Converter with Dupont lin $1.35

https://www.aliexpress.com/item/CP2102-USB-2-0-to-UART-TTL-5PIN-Connector-Module-Serial-Converter-with-Dupont-lin/32503014137.html

Experimental 9V battery snap power cable to DC 9V clip male line battery adapter for UNO r3 DIY $0.70 / 5 module with 2-row pin header For Leonardo 1PCS $3.18

New Pro Micro ATmega32U4 5V/16MHz Module with 2 row pin header For Leonardo 1PCS $3.50

https://www.aliexpress.com/item/New-Pro-Micro-ATmega32U4-5V-16MHz-Module-with-2-row-pin-header-For-Leonardo-1PCS/32785518952.html

5PCS 2 Channel IIC I2C Logic Level Converter Bi-Directional Module 5V to 3.3V $1.40 5 units

https://www.aliexpress.com/item/5PCS-2-Channel-IIC-I2C-Logic-Level-Converter-Bi-Directional-Module-5V-to-3-3V/32780215080.html

Digispark Pro Kickstarter development board use Micro ATTINY167 module for uail $3.50

https://www.aliexpress.com/item/Free-shipping-1pcs-Digispark-Pro-kickstarter-development-board-use-Micro-ATTINY167-module-for-Arduino-usb/32582770083.html

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… remember measure twice