Sometimes updates temp others humidity

Hi guys.

This is the part of the code that I use to send the DHT11 data , temp and hum to the thinspeak server, but sometimes just updates the temperature and if I reset just updates de humidity, what can be the issue? Can i send booth arguments in just one expression?

void loop()
{
  // Leia os dados do sensor DHT
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();

  // Convert temperature and humidity to strings
  String tempStr = String(temperature, 2);
  String humidityStr = String(humidity, 2);

  // Write temperature to ThingSpeak
  ThingSpeak.writeField(THINGSPEAK_CHANNEL_ID, 1, tempStr.toFloat(), THINGSPEAK_API_KEY);

  // Write humidity to ThingSpeak
  ThingSpeak.writeField(THINGSPEAK_CHANNEL_ID, 2, humidityStr.toFloat(), THINGSPEAK_API_KEY);

Answer 1

[Christopher Stapels]

Yes you can send in one command. See the library examples on write multiple fields. Your code is violating the 15 second rule between updates. You send the second update with no wait. If you send both fields in one update, all will be well. Just make sure to wait another 15 seconds for the next update. (For a free user)

[Gobllyn Gremllyn]

Thank you for you help, will read it tonight, and try to implement it.

Already added the 15 second delay and looks like it's works.