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Category: Linux & Unix

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RFID Scanner with WeMos, RC522, Homie MQTT & NodeRED in LEGO housing

Published 28. January 2023 by pathfinder

Another link to an interesting report about a project in which a RC522 RFID reader was installed as an input station in a LEGO housing, the whole thing then very thoughtfully implemented with a microcontroller on 8266 basis and RasPi and software-side with Homie MQTT and implemented in NodeRED.

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MQTT server mosquitto on Raspberry Smarthome server does not start

Published 16. December 2019 by pathfinder

Problem

Mosquitto server start problem:

After a few days of absence, I was unfortunately faced with some problems on my Raspberry smart home server.

Among other things, the Mosquitto MQTT server, which is supposed to receive and process messages from the various iot devices, was not available.

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RFID: Tutorial on integrating RFID in NodeRED environment using IBM BlueMIX Technology

Published 31. January 2018 by pathfinder

The linked Tutorial gives a brief overview of all the steps that are necessary to integrate a RC522 RFID Reader via Raspberry PI into NodeRED environment using IBM Bluemix services, watson IOT and nodes.

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