The Nextion display needs the content defined in the file PowerMeter.HMI. You can either upload it with the Nextion editor via a serial link to the display or you can copy the TFT file to an SD card and put this into the socket on the Nextion display.

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Kategorie: RF Powermeter

With the firmware version 1.8.0 I've introduce the capability to display also the input power in Watt instead of dBm. Simply tap on the unit field on the display to toggle between dBm and Watt.

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Kategorie: RF Powermeter

I've introduced with the firmware version 1.7.1 a complexity to this project which may not be suitable to all users.

WIth the firmware version 1.7.2 I've reduced the complexity by removing the remote configuration utilities.

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Kategorie: RF Powermeter

If you are using my powermeter software in conjunction with Maki's module and have a unstable readings or sporadic extrem value changes, this is a problem of the CS pin. It may be a grounding issue - Makis is currently analysing the problem.

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Kategorie: RF Powermeter

I've developed a new firmware for my RF Powermeter. In this firmware, the user can now program for six calibration points the factors for the polynimial regression functions.

Therefor I've developed a JAVA GUI application for downloading these floating point values to the device.

*** CAUTION ***
All stuff described in this post is ONLY running on an Arduino which runs the OptiBoot bootloader. The EEPROM capability of the OptiBoot bootloader is needed for the features of firmware V1.7.1

I described here a way how to flash the OptiBoot loader on an Arduino UNO clone. For this you need an ISP or a second Arduino to act as an ISP.

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Kategorie: RF Powermeter

I've added a new feature to the firmware release 1.5.0 V1.5 1 - power offset V1.5 3.

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Kategorie: RF Powermeter

The original library from Dan is not working as expected for me. So I adopted the code a little bit.

You can find the changes below. You can also download "my version" of the library here. Unzip into the Arduino's library folder.

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Kategorie: RF Powermeter

As described here, I've build an RF Powermeter.

The basic firmware is now running. So I started analysing the accuracy of the used meter head.PowerDev

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Kategorie: RF Powermeter

Inspired by the work of Richard G3CWI from SOTABEAMS and his flight decks for some QRP transceivers, I decided to build a matching one for my ELECRAFT KX3.

DSCF4266

Starting point was a clipboard which can be found for some bucks at AMAZON. In the lower section, I can simply secure my log sheets with the strong clip.

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Kategorie: SOTA

  1. SOTA - DM/BW-094 - Kornberg
  2. SOTA - DM/BM-344 - Kleiner Kulm - My first activation is done
  3. SOTA - Working conditions
  4. Switch-mode DC-DC converter
  5. Frog Sounds - Spurious emissions
  6. Frog sounds - The frog has arrived
  7. Frog sounds - How far can you hear a frog croak?
  8. Frog Sounds - Enhancements to the Frog
  9. Miss Mosquita - a new girl in town
  10. WSPR live data
  11. WSPR some data
  12. RF detectors
  13. WSPR first data analysis
  14. WSPR data collector
  15. PiAware
  16. vna/J ist umgezogen
  17. vna/J moved to a new location
  18. Reflash Arduino UNO ATMEGA16U2
  19. IoT Powersensor #2
  20. IoT Powersensor #1
  21. Arduino Library for AD7887
  22. RF Duinode
  23. ADS-B Filter
  24. IoT System management
  25. IoT MQTT Infrastructure
  26. IoT MQTT configuration
  27. ELECRAFT K-POD
  28. Rotator control with a NodeMCU runs stable
  29. Detailed measurement on audio CW-filter
  30. Audio CW-Filter finished

2014 CW (Morse Telegraphy) was added to the German Nationwide Inventory of Intangible Cultural Heritage.

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