I have to publish three variables which have a width of 5 and precision of 2. I am using this function to convert from float to char string - dtostrf(floatVar1, 5, 2, charBuf1); I now need to publish the charBuf1, charBuf2, charBuf3 to the MQTT broker . I tried , client.publish( topic, charBuf1)…

So this one did the job and now I can publish the "postValue" to the MQTT broker and all good !! void readBME280() { tempC = bme.readTemperature(); tempF = (1.8 * tempC + 32); press_hPa = bme.readPressure() / 100; humid_percent = bme.readHumidity(); elevation_m = bme.readAltitude(SEALEVE…

Posting three parameters to EMQX MQTT

Using Arduino Project Guidance

Railroader October 22, 2024, 3:49pm 2

Start by reading the advice here: How to get the best out of this forum - Using Arduino / Project Guidance - Arduino Forum

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Posting three parameters to EMQX MQTT

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