Need help with using a json request to HS4 via arduino sketch

[wkrasner]

I have the following (arduinosketch, I am trying to change the value of a device based on the adc conversion to voltage. The voltage component works fine, When I make the call to the server I get a response of 200 and the HS device value remains unchanged. I realize I will eventually have to change the set value of 4 to the voltage integer, but I am trying to just get the request to work. Any help would be appreciated.

#include "WiFi.h"
#include "Arduino_JSON.h"
#include "HTTPClient.h"
const char* ssid = "xxxxxxi";
const char* password = "xxxxxx";


const char* serverName="http://192.168.86.49/";
const int Analog_channel_pin= 36 ;
int ADC_VALUE = 0;
int voltage_value = 0;

IPAddress ip;
void setup() {

Serial.begin(115200);

WiFi.begin(ssid, password);

while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.println("Connecting to WiFi..");
}

Serial.println("Connected to the WiFi network");
ip = WiFi.localIP();
Serial.print("ESP Board IP Address: ");
Serial.println(ip);
Serial.print("ESP Board MAC Address: ");
Serial.println(WiFi.macAddress());

}

void loop()


{
ADC_VALUE = analogRead(Analog_channel_pin);
Serial.print("ADC VALUE = ");
Serial.println(ADC_VALUE);
delay(1000);
voltage_value = (ADC_VALUE * 3.3 ) / (615);
Serial.print("Voltage = ");
Serial.print(voltage_value);
Serial.print("volts");

HTTPClient http;

// Your Domain name with URL path or IP address with path
http.begin(serverName);

// Specify content-type header
http.addHeader("Content-Type", "application/json");
// Data to send with HTTP POST


String httpRequestData = "json?request=controldevicebyvalue&ref=2755&value=4";


// Send HTTP POST request
int httpResponseCode = http.POST(httpRequestData);



Serial.print("HTTP Response code: ");
Serial.println(httpResponseCode);


http.end();

delay(60000);
}

Thanks

[Roger D]

wkrasner,

Greetings,

When the sketch in ran, what is the exact string that gets sent?

Thanks,

Roger D

[wkrasner]

Roger,

Thanks for replying. I was able to get it working. I was using a post , I needed to use a get. Now I am trying to figure out how to have it auto restart the sketch after a power down.

Will