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VE2MQTT

Reads out messages from victron energy controller coming in via VE.Direct in serial text mode and sends them to a MQTT broker.

GPS2MQTT

Reads out the internal GPS and sends it to a MQTT broker.

MQTT-Logger

Simple MQTT-Logger for Busybox or other shells. Writes all MQTT messages from subscribed topics comma separated into a file. Based on https://unix.stackexchange.com/a/274224

Features

  • Log rotation when disk space below threshold (configurable)
  • Logfiles split by size (configurable)
  • option to log into subfolders by topic or all topics together into same log file. If the latter, then a topic column is added.

Call script with same options like for mosquitto_sub. '-v' gets added. Configure output directory and other parameters inside script.

⚠️ If using the outputsubdirs flag (for logging into subfolders by topic) with topics that differ much in their posting frequency, you can easily loose data because of the log rotation. The rarely used topic can easily become the oldest file (by modification time) and if the configured space quota is used up, it gets deleted. To workaround make sure, all topics get enough feed to not become overaged or make the split file size small enough that also the rarely used topics produce enought split files.

Tested on a router Teltonika RUT955 running BusyBox v1.30.1 () built-in shell (ash)

Dependencies:

  • mqtt broker (officially avaliable as a package from teltonika RUT955, just needs to be installed and activated via WebGUI, or use remote broker)
  • mqtt client (installable on RUT955 with opkg install mosquitto-client. If you get an error Unknown package, try opkg update before. From new firmware RUT9_R_00.07.00 on You need opkg install mosquitto-client-ssl instead.)