Nextion HMI

Yaesu G-5500 Ground Rail Fault & Better Voltage Drop Fix

Adam’s Yaesu G-5500 stopped working 🙁

Meter lamps came on, but non responsive otherwise.

An open circuit diode was found, D3, so no 0V GND rail existed.
Easy to find using an ordinary DMM.

A better method of eliminating the voltage drop problem across R10 20 ohm 5W resistor (that feeds +12V to the External Control connector) was suggested by Mike, WB8CXO, and implemented. … Read more...

VK4GHZ Nextion for K3NG Rotator Controller

Update 03-May-2022:  V2022-05-03 fixes typo error on About page in 7.0″ version


Nextion for K3NG Rotator Controller features:

Available for:
• NX8048K070 7.0″ Enhanced HMI
• NX8048K050  5.0″ Enhanced HMI
• NX4832K035  3.5″ Enhanced HMI
• NX4024K032  3.2″ Enhanced HMI  (limited functionality)

• Numeric Azimuth and elevation display
• Gauges Azimuth and elevation display
• BIG gauges display
• CCW/CW/Up/Down rotator control
• Configurable preset positions with name tags
• Configurable colours/fonts
• Park button
• Go To grid square
• Co-ordinates converter – convert between lat/lon and grid square
• Contest page – 8 presets
• Configuration – Screen page
• Rotor Calibration page
• Numeric keypad for entering numbers
• ABC keyboard for entering text & numbers
• Diagnostics page
• Configurable User Defined Functions with names
• Moon & Sun tracking page
• Satellite tracking page
• Satellite selection list
• Satellite AOS page
• Satellite tracking world map
• Tracking Check Interval settings page

Click on images to view full-size


Which Nextion?

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.


K3NG Rotator Controller Project Update Jan 2

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

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

Satellite title bar character length extended by several characters – long names were being cropped!… Read more...