Using API with c++/arduino

rikki78

@mwittig I agree with you

and this one

sprintf(urlTem,"http://%s:%s@%s/api/device/%s/changeTemperatureTo=temperatue=%s", myUsr, myPwd, host, myDev, str_temp);

If you check the output above you see there is a missing / in the result, after the devicename. This should help.
Print your string as formatted from arduino and paste it in a browser to test it

sprintf(urlTem,"http://%s:%s@%s/api/device/%s//changeTemperatureTo=temperature=%s", myUsr, myPwd, host, myDev, str_temp);

Ben S.

Thanks @mwittig and @rikki78
I did those changes. However, that did not do the trick.

It is strange: when I tested the original file (file -> examples -> ESP8266WiFi -> WiFi Client), I could successfully compile my code.

The other example code (from funduino.de -> http://funduino.de/anleitung-dht11-dht22)

#include "DHT.h" //DHT Bibliothek laden

#define DHTPIN 2 //Der Sensor wird an PIN 2 angeschlossen

#define DHTTYPE DHT11    // Es handelt sich um den DHT11 Sensor

DHT dht(DHTPIN, DHTTYPE); //Der Sensor wird ab jetzt mit „dth“ angesprochen

void setup() {
  Serial.begin(9600); //Serielle Verbindung starten

  dht.begin(); //DHT11 Sensor starten
}

void loop() {

  delay(2000); //Zwei Sekunden Vorlaufzeit bis zur Messung (der Sensor ist etwas träge)


  float Luftfeuchtigkeit = dht.readHumidity(); //die Luftfeuchtigkeit auslesen und unter „Luftfeutchtigkeit“ speichern

  float Temperatur = dht.readTemperature();//die Temperatur auslesen und unter „Temperatur“ speichern

  Serial.print("Luftfeuchtigkeit: "); //Im seriellen Monitor den Text und
  Serial.print(Luftfeuchtigkeit); //die Dazugehörigen Werte anzeigen
  Serial.println(" %");
  Serial.print("Temperatur: ");
  Serial.print(Temperatur);
  Serial.println(" Grad Celsius");

}

works as well. Both on their own. Adding sprintf and dtostrf was pretty much all I really changed; all the other stuff (adding variables, deleting and/or commenting out serial output) should not have caused any problems. But the final code from my last posting does not work at all.

I finally got all the annoying stuff out of the way (setting up each and every 433MHz for remote controls, figuring out which pimatic rules I need), now adding a bunch of DHT11 sensors to my room was pretty much going to be “it”. But it takes longer than all the other work combined -.-

leader21

@Ben-S why so compilcated. you can use ESPimatic instead.
there you can use your dht sensor and send the data directly to pimatic via wifi.
isn’t it that what you want

I do need to use a DHT11 sensor, though, so I tried setting it up on a nodeMCU which simply sends data to my pimatic device.

https://github.com/koffienl/ESPimatic

btw - better to use a dht 22, it’s more reliable.

Ben S.

@leader21 ahh yeah that is exactly what i am looking for. thank you.

i recently asked for help setting up ESPimaticRF and asked if it was possible to connect a DHT sensor… The developer said no and I didn’t know there was another project I could use (by what seems like the same dev).

do ESPimatic and ESPimaticRF work together? My main device (the one set up as homeduino) is a ESPimaticRF. I also have an ESPimaticRF node running. Could I leave the setup as is and still use a ESPimatic (without RF) for my DHT sensors?

I just had a box full of DHT11s so I used them, but already am waiting for DHT22s to be delivered

leader21

sorry for the late response. both systems are separate, they do not “cooperate”.
but you can use both parallel.
@koffienl has developed both. he also wanted to come up with a newer version of ESPimatic with some kind of plugin system. but actually there has not been any further release on that.