NEL.Mqtt2Mongo (nuget): Simple way to capture MQTT payloads and save it on MongoDB organized by timestamp. With MongoDb installed the usage is simple,  just var m2m = new Mqtt2Mongo() and Start(), then configure the mqtt2mongo.conf file located on your application BaseDirectory (you need to run it once in order to have the config file).
Keywords: mqtt|mongo|mongodb|iot|nel|database|db|time|series