When using setSamples() in DHT only humidity is sampled multiple times

[user2684]

This is because for any sensor which is creating multiple child ids, only the last one is returned so calling setSamples() will only apply to the last child id (humidity).
When generating multiple child IDs, each child has to be retrieved individually:

  int a = nodeManager.registerSensor(SENSOR_DHT22,6);
  nodeManager.setSleep(SLEEP,1,MINUTES);
  SensorDHT* t = (SensorDHT*)nodeManager.get(a-1);
  SensorDHT* h = (SensorDHT*)nodeManager.get(a);
  t->setSamples(5);
  h->setSamples(5);