I have built a lot of hotspots.  I put Nextion screens on most of them from 2.4 inch to 7 inch.  My main one is a duplex dmr hotspot and the mmdvm was built in Germany and it is quality stuff.  I have recently upgraded the 7 inch screen that was on it for the past year to a “More things” screen.  I had known that Nextion put our “basic” screens that are numbered NX8048T070_011 where the “T “ indicates it is the basic… Then there is the enhanced version NX8048K070_011 and here the “K” indicates the Enhanced version which has more memory and can hold a “more complicate” screen set of functions… but recently I saw a screen design that I really liked produced by HS9AWO.  Unfortunately it required a “P” screen with is called “Intelligent” and it does require a much better power supply but the outcome is worth it.

His (HS9AWO)  screens are becoming extremely complicated and include a lot of functions.  The most recent one includes a real time clock… and allows for changing TG’s and or Reflectors (depending on what mode you choose).  and it has a “screensaver” that just reverts back to a full clock with a nice background picture.  They even have sound available if you hook up to the proper gpio pins (I assume as I have not tried that yet).  I really like my new screen as I did not have a nice clock in the hamshack , well I had several small ones and another one that runs on another pi ‘HamClock” but this one is on all the time so it functions as a larger desk clock…

Here it is functioning as the hotspot – dual Timeslots…

Here it is between use and screen saver functions…. the orange numbers were changed back to white once I figured out he has it set to show ‘hot” pi temps but only on C scale and I had mine on F scale so anything over ?50deg was showing hot numbers even though it was not hot per F scale…

Here it has dropped to the selected screen saver and the stream flows.  Nice touch and I must assume there are sounds for it.

Always something new to try in Ham Radio hobby…

 

WD0AJG

Amateur Radio Newsletter

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Tuesday, October 29, 2019

• Olivia Digital Mode (1000 Hz) on Twenty Meters – A Simple Video
  The Olivia digital mode on HF radio is a mode capable of two-way chat (QSO) communication (keyboard to keyboard, like RTTY) over long-distance shortwave (HF) ionospheric propagation paths, especially over polar regions. If you are interested in more than a logbook QSO (such as is typical with FT8 and other propagation-checking modes) but want to […]

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Ham radio news, commentary, giveaways, and more!
Celebrating 24 years of service – 1995-2019
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Friday, October 25, 2019

• LHS Episode #309: The Weekender XXXVI
  It’s time once again for The Weekender. This is our bi-weekly departure into the world of amateur radio contests, open source conventions, special events, listener challenges, hedonism and just plain fun. Thanks for listening and, if you happen to get a chance, feel free to call us or e-mail and send us some feedback. […]

  

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Newsletter #143

View in browser A DIGITAL CAPACITANCE METER I needed a capacitance meter. However, I couldn’t justify the high cost. So, I decided to build my own. Over the years, I have amassed quite a selection of air variable capacitors and trimmers. Starting a project that used one of these devices used to feel like it required an Act of Congress to select the right one, since they were of unknown values. I finally decided it was time to add a capacitance meter to my test bench. However, I couldn’t justify the cost ($100+), so I decided to build my own. See if my design will work for you too! Build One Now! If You Bought An ELECTROLYTIC or FILM CAPACITOR From Distributors Since 2002, You Could GET MONEY! New Settlements totaling approximately $31 Million have been reached with ELNA Co., Matsuo, Nichicon, and Panasonic, and all Settlements total approximately $80.5 Million. Get More Information and File Your Claim Now! Advertisement MAKING WAVES Examine a number of methods of creating sine waves (and others) from digital values. Most digital circuits are limited to outputting zeros and ones. While they can do this quickly and efficiently, there are many more types of signals in the real world that require something other than zeros and ones. This article will briefly examine a number of methods of creating sine waves (and other waves) from digital values. Make Waves Now! R&S®RTB2000 Digital Oscilloscope – More Than Just an Oscilloscope The R&S®RTB2000 Oscilloscope is the perfect tool for design debugging. Get 10-bit ADC, 10 Msample memory, and 10.1” touchscreen plus a smart user interface. It’s the Power of 10 at an unexpected price. View Specs & Applications Advertisement THE DESKTOP CONTEMPLATOR Create your own personal light show for your desktop. Looking for some inspiration, electronic style? Well, this is the device for you! Gaze into its palette of colorosity to both amaze and calm yourself. Start Contemplating Now! MakerPlot — THE DIY SOFTWARE KIT PART 6 Graphical plotting, data acquisition, and control software for your microcontroller. See how to have MakerPlot send info to your micro of choice to control the firmware’s setpoint using a “slider.” Plot It Now! Altura MIDI Theremin Macchiato Mini-Synth RetroGame The Mentor’s Friend Nuts & Volts On CD-ROM 3D LED Matrix Cube TEENSY Graphics Interface Arduino Graphics Interface You are receiving this email because you have been a subscriber to Nuts & Volts Magazine, or have requested to receive our email newsletters. You may unsubscribe, change your email address or content preferences at any time through the links provided below. Nuts & Volts Magazine | 2279 Eagle Glen Pkwy #112-481, Corona, CA 92883 951.371.8497 | editor | www.nutsvolts.com T & L Publications, Inc, 2279 Eagle Glen Pkwy #112-481, Corona, CA 92883, United States, 951 371-8497 Unsubscribe Manage preferences

THE FIELD EFFECT TRANSISTOR

A Necessary Device for the Modern IC

This transistor was actually the first type of semiconductor amplifier predicted theoretically at Bell Labs, back in the 1950s, but it was not developed into a practical device until after the bipolar type had become popular. However, FETs have now become the most common type, with tens of millions of them in each microprocessor IC chip.

Learn About FETs – Read It Now!

BUILD THE 3D LED CUBE

This article shows you how to build a really cool 3D cube with a 4 x 4 x 4 monochromatic LED matrix which has a total of 64 LEDs. This size provides the best value for construction time and programming time for 3D patterns.

Read It Now!

MORE TRICKS WITH OLD SCHOOL DIGITAL CLOCKS

Here are a few of the many possible variations on the general theme of discrete-logic digital clocks. If you have a few LED displays, counters, drivers, and simple logic, you can probably build a clock. Consult the datasheets of the ICs you choose to use, breadboard everything first, and have fun.

Read It Now!

Build Something Today!

Transistor Clock

3D LED Matrix Cube

Macchiato Mini Synth Kit

Altura MIDI Theremin

RetroGame

The Mentor’s Friend

Arduino Graphics Interface

…