hi I am using the Arduino 101 and I have no idea how to read error message I have been trying to figure it out and I got no clue what's happening if anyone could help it would be amazing.
the Error message: C:\Users\ffera\Documents\Arduino\allmost there\allmost there.ino: In function 'void setup()':
C:\Users\ffera\Documents\Arduino\allmost there\allmost there.ino:50:3: error: 'gravityTds' was not declared in this scope
gravityTds.setPin(TdsSensorPin);
^
C:\Users\ffera\Documents\Arduino\allmost there\allmost there.ino: In function 'void loop()':
C:\Users\ffera\Documents\Arduino\allmost there\allmost there.ino:85:3: error: 'gravityTds' was not declared in this scope
gravityTds.setTemperature(temperature); // set the temperature and execute temperature compensation
^
C:\Users\ffera\Documents\Arduino\allmost there\allmost there.ino:103:16: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
while(flag = 0){
^
exit status 1
Compilation error: 'gravityTds' was not declared in this scope
#include <GravityTDS.h>
#include <EEPROM.h>
#define TdsSensorPin A1
#include <SPI.h> // Talking thing
#include <WiFi101.h>
#include <Wire.h>
#include <SimpleDHT.h>
#include <LiquidCrystal_I2C.h>
int lControl = 6;
char ssid[] = "YourNetwork";
char pass[] = "YourPassword";
int keyIndex = 0;
int status = WL_IDLE_STATUS;
float temperature = 25,tdsValue = 0;
int pinDHT11 = 2;
int flag = 0;
WiFiServer server(80);
// for DHT11,
// VCC: 5V or 3V
// GND: GND
// DATA: 2
SimpleDHT11 dht11(pinDHT11);
LiquidCrystal_I2C lcd(0x27, 16, 2);
void setup() {
Serial.begin(115200);
gravityTds.setPin(TdsSensorPin);
gravityTds.setAref(5.0); //reference voltage on ADC, default 5.0V on Arduino UNO
gravityTds.setAdcRange(1024); //1024 for 10bit ADC;4096 for 12bit ADC
gravityTds.begin(); //initialization
// translation for ariana: Uncomment serial for debugging and to see details of WiFi connection
// check for the presence of the shield:
//translation for ariana:make sure seild is working
if (WiFi.status() == WL_NO_SHIELD) {
// Serial.println("WiFi shield not present");
// don't continue:
while (true);
}
//translation for ariana: attempt to connect to Wifi network:
while ( status != WL_CONNECTED) {
// Serial.print("Attempting to connect to SSID: ");
// Serial.println(ssid);
// Connect to WPA/WPA2 network. Change this line if using open or WEP network:
status = WiFi.begin(ssid, pass);
// wait 10 seconds for connection:
delay(10000);
}
server.begin();
// you're connected now, so print out the status:
// printWifiStatus();
}
// translation for ariana:all the other stuff you dont need to know yet
void loop() {
// start working...
Serial.println("=================================");
Serial.println("Sample DHT11...");
//temperature = readTemperature(); //add your temperature sensor and read it
gravityTds.setTemperature(temperature); // set the temperature and execute temperature compensation
gravityTds.update(); //sample and calculate
tdsValue = gravityTds.getTdsValue(); // then get the value
Serial.print(tdsValue,0);
Serial.println("ppm");
delay(1000);
// read without samples.
byte temperature = 0;
byte humidity = 0;
int err = SimpleDHTErrSuccess;
if ((err = dht11.read(&temperature, &humidity, NULL)) != SimpleDHTErrSuccess) {
Serial.print("Read DHT11 failed, err="); Serial.println(err); delay(1000);
return;
}
while(flag = 0){
int newtemp = ( temperature * 1.8) + 32;
lcd.begin();
// Turn on the blacklight and print a message.
lcd.backlight();
lcd.print("tempature "); lcd.print((int)newtemp);
lcd.setCursor(0, 1);
lcd.print("humidity ");
lcd.print((int)humidity);
delay(1000);
}
WiFiClient client = server.available(); // listen for incoming clients
if (client) { // if you get a client,
// Serial.println("new client"); // print a message out the serial port
String currentLine = ""; // make a String to hold incoming data from the client
while (client.connected()) { // loop while the client's connected
if (client.available()) { // if there's bytes to read from the client,
char c = client.read(); // read a byte, then
// Serial.write(c); // print it out the serial monitor
if (c == '\n') { // if the byte is a newline character
// if the current line is blank, you got two newline characters in a row.
// that's the end of the client HTTP request, so send a response:
if (currentLine.length() == 0) {
// HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
// and a content-type so the client knows what's coming, then a blank line:
client.println("HTTP/1.1 200 OK");
client.println("Content-type:text/html");
client.println();
client.print("Value at A0 is ");
client.print(analogRead(A0));
client.print("<br>");
// The HTTP response ends with another blank line:
client.println();
// break out of the while loop:
break;
}
else { // if you got a newline, then clear currentLine:
currentLine = "";
}
}
else if (c != '\r') { // if you got anything else but a carriage return character,
currentLine += c; // add it to the end of the currentLine
}
// Check to see if the client request was "GET /H" or "GET /L":
if (currentLine.endsWith("GET /H")) {
digitalWrite(lControl, HIGH); // GET /H turns the LED on
}
if (currentLine.endsWith("GET /L")) {
digitalWrite(lControl, LOW); // GET /L turns the LED off
}
}
}
// close the connection:
client.stop();
// Serial.println("client disconnected");
}
}
void printWifiStatus() {
// print the SSID of the network you're attached to:
Serial.print("SSID: ");
Serial.println(WiFi.SSID());
// print your WiFi shield's IP address:
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print the received signal strength:
long rssi = WiFi.RSSI();
Serial.print("signal strength (RSSI):");
Serial.print(rssi);
Serial.println(" dBm");
}
