Need help with code dht22 and hx711

Troubleshooting
1

I can’t seem to get my code to compile: Any help would be great.

#include "PietteTech_DHT.h"
#include "Adafruit_DHT.h"
#include "HX711ADC.h"

HX711ADC scale(A1, A0);		// parameter "gain" is ommited; the default value 128 is used by the library

// Variables
int temperature1;
int humidity1;
int temperature2;
int humidity2;
int calibration_factor = -7050;

DHT dht1(2, DHTTYPE);
DHT dht2(3, DHTTYPE);


void setup() {
    dht1.begin();
    dht2.begin();
scale.set_scale(calibration_factor);
}

void loop() {
      
    temperature1 = dht1.getTempCelcius();
    temperature2 = dht2.getTempCelcius();
    humidity1 = dht1.getHumidity();
    humidity2 = dht2.getHumidity();
    
float weight1 = scale.get_units();
 Spark.publish("Hive 1 temperature", String(temperature1) + " °C");
    delay(2000);
    Spark.publish("Hive 1 humidity", String(humidity1) + "%");
    delay(2000);
    Spark.publish("Hive 2 temperature", String(temperature2) + " °C");
    delay(2000);
    Spark.publish("Hive 2 humidity", String(humidity2) + "%");
    delay(2000);
    Spark.publish("weight", weight1+"lbs");
    delay(2000);
}
2

You should post any error messages that you're getting. For sure, your include statements need a # in front of them if what you're showing isn't just a typo. Also, DHTTYPE doesn't name a type, you need to define that with something like,

#define DHTTYPE DHT22; // or DHT11 or DHT21

BTW, why are you using both the Adafruit library and the PietteTech one. You should only need one or the other.

3

The only error I get is: “error could not compile. please check your code”

My include statements do have a # but it just didn’t show up.

good catch on the #define. I missed that in my copy and paste. I can get the code for the DHT22 to compile (using both libraries). I can also get the code for the hx711 to compile. The problem I have is when I try to combine them together it just give me the could not compile error.

This is my 1st attempt to program with particle.

Thank you for your response

4

You need to replace Spark with Particle everywhere it appears. Also this,

Spark.publish("weight", weight1+"lbs");

needs to be,

Particle.publish("weight", String(weight1) + "lbs");
5

For that reason you should post your code wrapped in a set of these

 ```cpp
 // your code

I've edited your original post accordingly and for mor hints look at 
 https://community.particle.io/t/forum-tips-and-tricks/3999

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You also need to state what dev env you are using, how you have imported or included your libraries, what device and system version you are targeting.