WiFiThingSpeak.ino:4:24: fatal error: ThingSpeak.h: No such

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WiFiThingSpeak.ino:4:24: fatal error: ThingSpeak.h: No such

Postby shalinashazili » Wed Mar 28, 2018 2:01 am

Hello there, i have been working for my final year project regarding real time gas leakage detection. And now im trying to compile my previous coding with ur WifiThingSpeak coding which you have attached at ur examples (github) but the problem is now after compiling the coding and trying to verify it.. there is error stated that WiFiThingSpeak.ino:4:24: fatal error: ThingSpeak.h: No such file or directory. pls help me :(

Here is my coding:

#include <CytronWiFiShield.h>
#include <CytronWiFiClient.h>
#include <SoftwareSerial.h>
#include <LiquidCrystal_I2C.h>
#include <ThingSpeak.h>



const char *ssid = "A6-L3-2";
const char *pass = "a6l3pass2";
ESP8266Client client;
unsigned long GasLeakageDataChannelNumber = 461523;

LiquidCrystal_I2C lcd(0x3F, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);

int pin9 = 9; //led
int buzzer = 6; //buzzer
// Analog pin 0 will be called 'sensor'
int sensor = A0;
// Set the initial sensorValue to 0
int sensorValue = 0;


void setup() {
// put your setup code here, to run once:
Serial.begin(9600);

lcd.begin(16, 2); //set up the LCD's number of columns and rows
lcd.clear();
lcd.print("GAS SENSOR");// print a message to the LCD
Serial.begin(9600); // Initialize serial communication at 9600 bits per second
pinMode(pin9, OUTPUT);
pinMode(pin9, LOW);
pinMode(buzzer, OUTPUT);

beep(50);
beep(200) ;
beep(50) ;
beep(100) ;

while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}
if (!wifi.begin(2, 3))
{
Serial.println(F("Error talking to shield"));
while (1);
}
Serial.println(F("Start wifi connection"));
if (!wifi.connectAP(ssid, pass))
{
Serial.println(F("Error connecting to WiFi"));
while (1);
}
Serial.print(F("Connected to ")); Serial.println(wifi.SSID());
Serial.println(F("IP address: "));
Serial.println(wifi.localIP());
ThingSpeak.begin(client);
delay(1000);
}

void loop() {
// put your main code here, to run repeatedly:
// Read the input on analog pin 0 (named 'sensor')
sensorValue = analogRead(sensor);
int outputvalue = map(sensorValue, 0, 1023, 0, 255);
lcd.setCursor(0, 1);
lcd.print("Value = ");
lcd.print(sensorValue);
delay(1000);
lcd.print(" ");
//Scroll
int outputMap2 = 0;
int outputBuzzer = 0;


if (sensorValue > 280) {
// Activate digital output pin 9 - the LED will light up
//Notice the value of the experiment. Minimum =70 , maximum= 110 for my mq2 device
outputMap2 = map(outputvalue, 70, 110, 0, 255); // for led,'map' func from 70-110 become 0-255 so that be value for pwm made fade with led.
//map อีกครั้ง 29-110 ไป 0-255 so that pwm ทำ fade กับ led
outputMap2 = constrain(outputMap2, 0, 255); //value for led , make 'map' func again,make a wider range of led or brightness of the led.
//ทำให้ เห็น ช่วงที่กว้างขึ้นของ แสง led หรือความสว่างของ led ให้ชัดเจนขึ้น
lcd.print("DANGER!!");
outputBuzzer = 254 - map(outputvalue, 70, 110, 50, 254); //value for buzzer
analogWrite(pin9, outputMap2);
beep(outputBuzzer);
mySerial.print(sensorValue);
}
else {

analogWrite(pin9, 0);
mySerial.print(sensorValue);
lcd.print("SAFE!!");
}

//for debug mq2 sensor value
Serial.print("sensorValue : ");
Serial.print(sensorValue, DEC);
Serial.print("\t mapValue : ");
Serial.print(outputvalue, DEC);
Serial.print("\t outputMap2 : ");
Serial.println(outputMap2, DEC);
delay(250);
}

void beep(unsigned char delayms) {
analogWrite(buzzer, 150); // Almost any value can be used except 0 and 255
delay(delayms); // wait for a delayms ms
analogWrite(buzzer, 0); // 0 turns it off
delay(delayms); // wait for a delayms ms
}


String GasValue = parseString(ThingSpeak.readStringField(GasValueChannelNumber, 1));
Serial(F("Gas value is"));
Serial.print(GasValue);
Serial.println();
delay(60000); // Note that the weather station only updates once a minute

}

//workaround for Cytron WiFi Shield leftover content when client closes
String parseString(String str)
{
int index = str.indexOf(",CLOSED");
if (index == -1) return str;
return str.substring(0, index - 1);
}
shalinashazili
Greenhorn
 
Posts: 2
Joined: Wed Mar 28, 2018 1:55 am

Re: WiFiThingSpeak.ino:4:24: fatal error: ThingSpeak.h: No s

Postby bengchet » Wed Mar 28, 2018 7:14 am

Hi,

Similar issue here https://forum.cytron.io/viewtopic.php?f=26&t=12908&p=26298&hilit=thingspeak&sid=daf433f63badadb37eb4cc53245a7311#p26298

Your sketch requires dependency of Thingspeak library, install it from Library Manager will solve the issue.

Thanks.
bengchet
Moderator
 
Posts: 237
Joined: Tue Aug 25, 2015 8:29 am

Re: WiFiThingSpeak.ino:4:24: fatal error: ThingSpeak.h: No s

Postby shalinashazili » Wed Mar 28, 2018 10:19 am

bengchet wrote:Hi,

Similar issue here https://forum.cytron.io/viewtopic.php?f=26&t=12908&p=26298&hilit=thingspeak&sid=daf433f63badadb37eb4cc53245a7311#p26298

Your sketch requires dependency of Thingspeak library, install it from Library Manager will solve the issue.

Thanks.


Solved! Thank you :)
shalinashazili
Greenhorn
 
Posts: 2
Joined: Wed Mar 28, 2018 1:55 am


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