Can i take these 3 bunches of code below

Projects Programming
26

how do i take floating varables and put them in a variable?

mqttout = ("Temperature: % ,Humidity: % , Pressure: %\n", temp, hum, pres);

this is giving me a backwards question mark.

i'm rying to do this so i can input this into the line below inplace of (temp)

uint16_t packetIdPub1 = mqttClient.publish(MQTT_PUB_TEMP, 1, true, String(temp).c_str());