DHT22 - doesnt show 2 decimal places

Using Arduino Programming Questions
#1

hello guys,

I have issue with DHT22.
I read a lot of topics here, but nothing really help me out.

Can you please check this code, and tell me where is my mistake ?

Thanks

#define WIFI_NAME "xxxx"
#define WIFI_PASSWORD "xxxxx"
#define DEVICE_ID 2
#define DEVICE_NAME "esp8266xxxxx"
#define TOKEN "xxxxxx
#define DHTTYPE DHT22


#include <RemoteMe.h>
#include <RemoteMeSocketConnector.h>
#include <ESP8266WiFi.h>
#include "DHT.h"


uint8_t DHTPin = D2;


DHT dht(DHTPin, DHTTYPE);                

float Temperature;
float Humidity;
         



RemoteMe& remoteMe = RemoteMe::getInstance(TOKEN, DEVICE_ID);

//*************** CODE FOR COMFORTABLE VARIABLE SET *********************

inline void setTemp_alpalouka(int32_t i) {remoteMe.getVariables()->setInteger("temp_alpalouka", i); }

//*************** IMPLEMENT FUNCTIONS BELOW *********************

void onTemp_alpaloukaChange(int32_t i) {
}




void setup() {
  pinMode(DHTPin, INPUT);
  dht.begin();
  

  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
  Serial.println("Connecting to ");
  Serial.println(WIFI_NAME);

  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
  }

  remoteMe.getVariables()->observeInteger("temp_alpalouka" ,onTemp_alpaloukaChange);

  remoteMe.setConnector(new RemoteMeSocketConnector());
  remoteMe.sendRegisterDeviceMessage(DEVICE_NAME);
}
  

void loop() {
  remoteMe.loop();
  static long time=millis();
  if (time+1000<millis()){
    time=millis();
    setTemp_alpalouka(getTemperature());
    Serial.println("Temperature");
                         }
  
            }
    int32_t getTemperature(){
    Temperature = dht.readTemperature();
    return Temperature;
                          }
#2

Where are you expecting to see the 2 decimal places ?

#3

Oh sorry,

There should be:

https://app.remoteme.org/wp/~647620_N4jFnyKKnH5Q/1/app.html
#4

Which variable holds the temperature that I presume you are sending to RemoteMe, whatever that is ?

#5 
int32_t getTemperature(){
  Temperature = dht.readTemperature();
  return Temperature;
}

Change "int32_t " to "float" to return a float.

#6

well that works too:)
but the page is still showing only rounded number

#7 
inline void setTemp_alpalouka(int32_t i) {remoteMe.getVariables()->setInteger("temp_alpalouka", i); }

//*************** IMPLEMENT FUNCTIONS BELOW *********************

void onTemp_alpaloukaChange(int32_t i) {
}

I note the use of the word integer and the use of an integer variable in these 2 lines, whatever they do. Could that be significant ?

#8 
inline void setTemp_alpalouka(int32_t i) {remoteMe.getVariables()->setInteger("temp_alpalouka", i); }

change everything to float.
setInteger() should probably be setFloat()

#9

well,

is possible to get 2 decimal with integer ?

#10

dante_infern0:
well,

is possible to get 2 decimal with integer ?

Yes, you can.
-Mutilply your float by 100
-Send as an integer.
-Recieve an integer.
-Divide the value by 100.0

#11

dante_infern0:
well,

is possible to get 2 decimal with integer ?

By definition an integer does not have and cannot have decimal places. By manipulating the values as described you can implement a bodge to get round this but then you need to be able to manipulate the values on both ends of the link

#12

dante_infern0:
well,

is possible to get 2 decimal with integer ?

Seriously? Did you miss that day in 3rd Grade Math class?

#13

gfvalvo:
Seriously? Did you miss that day in 3rd Grade Math class?

No. But English is not my primary language and I didnt translate the "interger" to my lang., before I asked. :smiley:

#14