I'm new MQTT. I'm looking at an example MQTT sketch from the PubSubClient library. It looks like this: void callback(char* topic, byte* payload, unsigned int length) { // handle message arrived } EthernetClient ethClient; PubSubClient client(server, 1883, callback, ethClient); void setup() { …

MQTT library PubSubClient - sending float/int/bool data to topics? char convert

Kerr1st February 26, 2016, 9:15pm 3

Thank you for posting this here is an example built using your string conversion idea

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