Satellites

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...

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 input

• El analogue potentiometer input

• Yaesu G-5500 compatible for CW/CCW/Up/Down control

• PWM motor driver for linear actuator elevation control

• i2c extender for remote sensors via cat5

• Spare cat5 pair pads available

• Audible alert output

• Teensy RTC battery connection

• GPS serial data pass-through (genuine FTDI chip) to USB for time-syncing PC

• Four NO push-button switch inputs with pull-ups

Universal Main controller board

Rear Connectors

Development Remote Unit at the end of a 30m (100ft) run of cat5 cable.… Read more...

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. … Read more...

The K3NG rotator controller is extremely well supported by the author, Anthony Good, K3NG.

Since the last bug report, one issue, easily overlooked by those not entirely familiar with the Nextion display,  has been identified that can easily cause grief,

Along with creating fonts with iso-8859-1 encoding, make sure when setting up your Nextion HMI project in the Nextion Editor, that the character encoding type is also set to iso-8859-1.… Read more...