How full is the rain barrel?
I made a setup with an AJ-SR04M Waterproof Ultrasonic Sensor to measure how full the rain barrel is. The measurement data are distributed via mqtt […]
Synology Calendar API v5
Synology has not yet published any documentation about the Calendar API v5. There is also little information available on forums. I have found that the […]
Listen to data broadcasts with Software Defined Radio
Introduction Software Defined Radio (SDR) replaces traditional hardware components of wireless communication technology with software algorithms. Affordable SDR dongles enables users to explore and manipulate […]
Node-RED – one controller for all relays
I streamlined the control of actuators with a centralized controller. An abstraction layer handles diverse actuators through MQTT, while a singular controller orchestrates communication, simplifying a complex system.
List of Zigbee Cluster identifiers
The cluster identifier is a 16-bit number that maps to (identifies) a single cluster specification. More than one cluster identifier may map to a cluster […]
How I setup my InfluxDB
Setting up InfluxDB for home automation. Utilizing Buckets, Measurements, Fields, and Tags with MQTT, Zigbee2MQTT, OpenMQTTGateway, and Node-Red for data collection and processing.
Combine Influxdb data and mysql metadata in Grafana
The solution described allows for enriching metadata in Grafana by combining data from InfluxDB with data from a MySQL database. This is achieved using Flux, the query language for InfluxDB, and the join function to merge the data based on a common attribute (topic in this case).