Amateur Radio

Fixing Yaesu G 5550 13V External Control Rail Voltage Drop

Adam looks at why the 13V rail appearing on the Yaesu G-5500’s External Control connector drops so much when a Rotator Controller board and 5.0″ Nextion are powered off this rail.

The rear of the Yaesu controller has an ‘External Control’ port, intended to connect to a computer interface.

 

 

The 13V rail for powering external equipment is only … Read more...

K3NG Rotator Controller Project Update Feb 11 2021

In this video, Adam goes over the latest Nextion NX8048K050 (Enhanced 5.0″) firmware V2021-02-11-01 update for K3NG Rotator Controller.

Solutions to fix the crappy Yaesu G-5500 +13V rail voltage drop on its External Control connector are also offered.

 

New: (Suggestion courtesy VK1JA)
Elevation Gauge hotspots.
El can be quickly sent to 0°, 30°, 60°, 90°, 120°, 150° & … Read more...

K3NG Rotator Controller Project Boxing

Adam shows you how he crams his 5.0″ Nextion touch screen and custom K3NG rotator controller board inside an $8 box.

Read more...

Yaesu G-5500 K3NG Rotator Controller Board

A Yaesu G-5500 (etc)  rotator controller project based on Anthony Good’s popular K3NG rotator controller.

This project features a Teensy 3.2 microcontroller and Nextion Enhanced HMI user interface.

• Az analogue potentiometer input
• El analogue potentiometer input
• Four NO push-button switch inputs with pull-ups available
• Teensy I/O pins available via pads
• 100 x 50 mm… Read more...

Nextion for K3NG Rotator Controller Update

VK4GHZ Nextion for K3NG Rotator Controller now gets a version for the NX8048K050 5.0″ Enhanced touchscreen.

The 5.0″ screen is nice!

Below are some comparison shots along side a familiar 3.5″ Nextion.

(5.0″ screen still has protective layer on top of screen, so tends to look dull)

 

NX8048K035 V2021-01-06-01

First release of 5.0″ version.

• Has all features and … Read more...

K3NG Rotator Controller Project Update Jan 6

Nextion firmware V2021-01-06-01 update for K3NG Rotator Controller

New:
Rotator Protocol added to Features page
GPS icon added & GPS ‘Wait’ on Features Page if GPS enabled but waiting for fix

Fix:
Toggle center button removed – Arduino code doesn’t appear to process Yaesu
commands from Nextion. Never make assumptions!
[Thanks Robert G0MYX for discovering this]
It also screwed up … Read more...

K3NG Rotator Controller Project Update Jan 2

Nextion firmware V2021-01-01-01 update for K3NG Rotator Controller

New:
5.0″ version
Preset tags colour & font can now be changed
User Defined Buttons now have name tags
Initialize EEPROM button added
Toggle Center button added
Clock time now displayed on Features page

Fix:
Satellite title bar character length extended by several characters – long names were being cropped!
Never ending … Read more...

K3NG Rotator Controller Project Update Dec 17

Updated 15/04/2021 – insertion point revised for v2021-04-07-01 ino file

 

Project Update December 2020

VK4GHZ Nextion for K3NG Rotator Controller firmware v 2020-12-17-01 update brings “User Defined Function” buttons for those wanting to experiment with triggering their own custom code.

Buttons on new Nextion page “User Defined Functions” will send upon a long touch to the MCU;

\?U1
\?U2… Read more...

Universal K3NG Rotator Controller System

Update 11-Feb-2021:

• NX8048K035 5.0″ Firmware Update

 

A universal rotator controller project based on Anthony Good’s popular K3NG rotator controller.

This project features a Teensy 3.2 microcontroller and Nextion Enhanced HMI with custom user interface.

• Yaesu G-800DXA (and G-1000-DXA, G-2800-DXA) azimuth rotator control

• Yaesu G-800DXA (and G-1000-DXA, G-2800-DXA) PWM speed voltage output

• Az analogue potentiometer … Read more...

Nextion for K3NG Rotator Controller Videos

A series of videos demonstrating the VK4GHZ Nextion for K3NG Rotator Controller

Part 1 – Basic Az system

Part 1 looks at a basic azimuth-only system and introduces you to some of the functionality offered.

 

Part 2 – Elevation

Part 2 introduced elevation functionality and adds a decimal place to Az & El readings.

 

Part 3 Read more...

Eltek Flatpack2 Interface Board Considerations

How to interface your Eltek Flatpack2 to the outside world?

To prevent re-inventing the wheel, several options already exist and looking on ebay.com.au we find;

https://www.ebay.com.au/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=eltek+flatpack+board&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=eltek+flatpack2+board

 

One thing we discover is, ebay cannot count to five properly!

A subtle change in search terms can reveal alternatives, such as the board from Slovenia;

Search results can be inconsistent, even when … Read more...

K3NG Rotator Controller Nextion Development

It’s not everyday you come across a project from somebody else that is well documented, relatively easy to pick up and work with, and, has the ability to customise it to your hearts content!

The K3NG rotator controller is one such project.  Ideal for anyone wanting to interface their rotators/positioners with a PC for, say, tracking satellites and/or EME.

The … Read more...