https://www.baldengineer.com/tag/pubsubclientRecent content in pubsubclient on Bald EngineerHugoen-USSat, 04 Feb 2017 02:02:18 +0000https://www.baldengineer.com/multiple-mqtt-topics-pubsubclient.htmlWed, 01 Feb 2017 13:00:22 +0000https://www.baldengineer.com/?p=6348In my Arduino MQTT Examples, I kept things simple by only subscribing to a single topic. One of the strengths of MQTT is that a device can subscribe (or publish) to multiple topics. The broker will sort things out. Even though my first example only showed one, it is straight forward to get the Arduino PubSubClient library to subscribe to Multiple MQTT topics. The quick answer is that you need to look at the MQTT response to find out which topic sent the payload.