IoT System management
My MQTT server also has some basic systems management capabilities - means the MQTT server can emit the following data to the MQTT broker:
- CPU temperature
- Power supply temperature
- Average CPU load
- Uptime of server
- Details
- Kategorie: IoT Internet of Things
IoT MQTT Infrastructure
Since the beginning of my home automation project I made several tests to choose the right platform and right controller. I've done test with various sensor technologies etc. etc.
Most of the articels can be found in the Arduino category.
One decision was, that my webhost should be the main datastore for all data measured. With this decision, I've started to build a data collection and distribution infrastructure. The complete setup consists of two major components:
These components are detailed further down the page.
- Details
- Kategorie: IoT Internet of Things
IoT MQTT configuration
Some basic config stuff for the RASPI & MQTT
- Details
- Kategorie: IoT Internet of Things
ELECRAFT K-POD
Last week I received my long awaited K-POD from QRP-Project in Berlin.
- Details
- Kategorie: Shack
Rotator control with a NodeMCU runs stable
My proof-of-concept works pretty stable - please check the status screen:
- Details
- Kategorie: Shack
Detailed measurement on audio CW-filter
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.
- Details
- Kategorie: Shack
Audio CW-Filter finished
Now I've finished the Audio CW-filter I've decribed here in details.
- Details
- Kategorie: Shack
2014 CW (Morse Telegraphy) was added to the German Nationwide Inventory of Intangible Cultural Heritage.
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© 2021 Dietmar Krause, DL2SBA