Some basic config stuff for the RASPI & MQTT

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Kategorie: IoT Internet of Things

Last week I received my long awaited K-POD from QRP-Project in Berlin.

KP1KP2

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Kategorie: Shack

My proof-of-concept works pretty stable - please check the status screen:

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Kategorie: Shack

Here I've build an audio CW-filter based on the circuit from NM0S/4SQRP.

This filter works pretty well. I've done some audio analysis using a cheap soundcard from BEHRINGER and the shareware application AUDIOTESTER.

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Kategorie: Shack

Now I've finished the Audio CW-filter I've decribed here in details.

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Kategorie: Shack

Basics

Inspired from the work of EA4TX and K3NG I decided to check, whether the ESP8266 based NodeMCU 1.0 (ESP-12E) is usable as a simple remote IP-based rotator control. You can get the NodeMCU in a decent quality on eBay.

Idea was, to link a local emulated serial port to the NodeMCU module. The HAM Radio applications are communicating via the standard Yaesu GS232A protocol with the emulated serial port.  This emulated serial port then forwards the serial requests to the NodeMCU.

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Kategorie: Shack

Hier eine Sammlung unserer Wanderungen/Ausflüge der vergangenen Jahre

 

 

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Kategorie: Wandern

You may have seen my build version of the M0UKD sensor keyer and the Bamatech sensor head.

As you can see in this post, I've used a simple slide switch to control the power for the sensor keyer. This was a little bit annoying, as you must always check, whether you've turned of the power, when you leave the shack.

As power consumption is not really a big issue - the keyer draws about 2.5mA from two AA-cells. Based on the capacity of an average Energizer Classic AA battery of 1.200mA you will get an on-time of about 300h.

Since many months I've had the idea, to add an electronic switch to the keyer, so it switch of automatically after 15 minutes of idle time.

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Kategorie: Shack

Based on the work of John, M0UKD, I've build a small sensor-keyer. I used a surplus aluminium shelf and two aluminium stand-offs as "paddles".

See the evolution of this project here.

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Kategorie: Shack

  1. IoT Lightsensor
  2. Worked all Germany contest 2015
  3. ELECRAFT K2 - Fixing VFO ALC issue
  4. XPhase - Interference reduction
  5. LF-Converter
  6. SMD Solder Station
  7. Connecting an Arduino to MOSQUITTO
  8. Getting started with MOSQUITTO
  9. Getting started with 2lemetry
  10. Neuer DARC Image Film
  11. nanoKeyer - neue Frontplatte
  12. Capacitive (water) level sensor
  13. MODBus shield
  14. MODBus master
  15. MODBUS slave
  16. Capacitive level sensor - electrode design
  17. MODBus Node with level sensor
  18. Arduino Home Automation
  19. MODBus - register usage
  20. nanoKeyer - Extensions - 2nd
  21. nanoKeyer -Extensions
  22. Zusatzschaltungen für Arduino etc.
  23. Update I2C LCD-Library for Arduino
  24. nanoKeyer - Arduino based memory keyer
  25. Digital-Multimeter comparision
  26. Splitter/Combiner - Funkamateur.de
  27. KW-Antenne MP1
  28. Hochleistungswiderstand
  29. Mini Morsetaste SQUEEKY
  30. ShackController

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

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