I have recently started to build a petwaterwarden from http://makezine.com/projects/pet-water-warden/ and am having trouble uploading the code to the Arduino Uno board.
The link to the code I am using is below:
An error message comes up when I try to verify and upload the code, it is saying error: ‘EthernetClient’ does not name a type and I’m having trouble fixing it.
Do you have all the libraries correctly installed?
It seems to me an error due to a lack of an library.
Do you have saw this:
http://playground.arduino.cc/Code/TwitterLibrary
Do you have tried the examples of this library first?
Yes i have installed all libraries but will reinstall them to make sure.
Thanks
Does the term EthernetClient appear anywhere in the code ?
Seeing the full error message would be more helpful ?
I dont believe it does, here is the code:
/************************************************
* Author: Eloy Salinas
* Project: Pet Water Warden
* Company: Make Magazine // RadioShack
* Date: 8/8/13
* Version: 1.0
* http://makezine.com/projects/petwaterwarden/
*************************************************/
//Twitter capabilities thanks to http://arduino-tweet.appspot.com/
//Wifi Shield Twitter thanks to https://github.com/gauravg11/arduinolibs
#include <SPI.h>
#include <WiFi.h> //Included with Arduino V1.0 and higher
#include <Twitter.h> // This is the Lib from gauravg11 on Github above, a modified
// version of Arduino Tweets Twitter Lib to work with a WiFi shield
//Twitter info
// Your Token to Tweet (get it from http://arduino-tweet.appspot.com/)
Twitter twitter("2249691528-hWNRmU6UXWOzWqp4YsSEpobke8xeRW6p1jIwh4Z");
// Message to post to twitter in case of a fail
char msg[] = "Pet Water Warden Error: Please check my water!";
//Network information
char ssid[] = "SSID"; // your network SSID (name)
char pass[] = "Password"; // your network password
int status = WL_IDLE_STATUS; // the Wifi radio's status
//Set output pin 8 to control switchtail/pump
const int pump = 8;
//Failsafe off
long timerA = 0;
int wardenFailed = 0; // Flag incase something goes wrong
void setup() {
// initialize serial communication at 9600 bits per second:
Serial.begin(9600);
//Set pump output pin
pinMode(pump, OUTPUT);
//Start with pump off
digitalWrite(pump, LOW);
// check for the presence of the shield:
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WiFi shield not present");
// don't continue:
while(true);
}
// attempt to connect to Wifi network:
while ( status != WL_CONNECTED) {
Serial.print("Attempting to connect to WPA SSID: ");
Serial.println(ssid);
// Connect to WPA/WPA2 network:
status = WiFi.begin(ssid, pass);
// wait 10 seconds for connection:
delay(10000);
}
printWifiData();
//Test Twitter
Serial.println("Pet Water Warden testing twitter connection...");
if (twitter.post("Pet Water Warden is up and running!!")) { // Twitter that we are up and running
int status = twitter.wait(&Serial); // wait for a response from twitter
if (status == 200) { // if Twitter responds 200
Serial.println(", Tweet is OK!"); // print success
Serial.println(); // print a blank line, used for debugging
}
else {
Serial.print("Tweet failed : code ");
Serial.println(status); // print error code
Serial.println(); // print a blank line, used for debugging
}
}
else {
Serial.println("Connection to Twitter failed.");
}
}
void loop(){
//Read the input on A0-A1
//High and Low Sensors
int sensorLow = analogRead(A1);
int sensorHigh = analogRead(A0);
//Convert to a voltage
float voltageLow = sensorLow * (5.0 / 1023.0);
float voltageHigh = sensorHigh * (5.0 / 1023.0);
//Sensor States
int lowState = 0;
int highState = 0;
//Are the sensors on or off?
//Write states, voltage comparison values may need to be adjusted depending on your transistor
//and if you are using extneral or the MakerShields LEDs
if (voltageLow >= 3.3){lowState = 0;}
else if (voltageLow < 3.3){lowState = 1;}
if (voltageHigh >= 3.3){highState = 0;}
else if (voltageHigh < 3.3){highState = 1;}
//Turn on the pump?
if(highState == 1 && lowState == 1 && wardenFailed == 0){
digitalWrite(pump, LOW);
timerA = 0;
}else if(highState == 0 && digitalRead(pump) == LOW && wardenFailed == 0){
//FailSafe Timers
timerA = 0;
digitalWrite(pump, HIGH);
timerA = millis();
Serial.print("Starting timer: ");
Serial.println(timerA);
}
//My pet bowl fills in about 45 sec, adjust to the size
// of your pet bowl
if( (millis() - timerA) >= 45000 && timerA != 0){
digitalWrite(pump, LOW);
Serial.println(timerA);
Serial.println(millis());
timerA = 0;
//Either no water left or the pump didn't turn off, bad sensor?
tweetFail();
wardenFailed = 1; // the Pet Warden Warden has run into trouble and failed
Serial.print("Something went wrong! The wardenFailed status is: ");
Serial.println(wardenFailed);
exit(0);// exit the program auntil error is fixed
Serial.println("Either no water left or the pump didn't turn off, bad sensor?");
}
//Debug Prints
Serial.print("Low Sensor: ");
Serial.println(lowState);
Serial.print("High Sensor: ");
Serial.println(highState);
Serial.println(voltageLow);
Serial.println(voltageHigh);
//Check Sensors 10 sec
delay(10000);
}
void printWifiData() {
// print your WiFi shield's IP address:
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print the SSID of the network you're attached to:
Serial.print("SSID: ");
Serial.println(WiFi.SSID());
}
void tweetFail(){
if (twitter.post(msg)) { // Twitter that we are up and running
int status = twitter.wait(&Serial); // wait for a response from twitter
if (status == 200) { // if Twitter responds 200
Serial.println(", Tweet is OK!"); // print success
Serial.println(); // print a blank line, used for debugging
}
else {
Serial.print("Tweet failed : code ");
Serial.println(status); // print error code
Serial.println(); // print a blank line, used for debugging
//If Tweet fails try again
tweetFail();
}
}
else {
Serial.println("Connection to Twitter failed.");
}
}
I have attached the error as an attachment above and also on this post too.
Yes it does! And the error message tells you where:
(...) Twitter.h:35 (...)
that is in the line 35 of the file Twitter.h:
(...)
private:
uint8_t parseStatus;
int statusCode;
const char *token;
#if defined(ARDUINO) && ARDUINO < 100
Client client;
#else
EthernetClient client; // <=== HERE!!!
#endif
public:
Twitter(const char *user_and_passwd);
(...)
BTW, you must use the code tags [ code ] and [ /code ] to post your code here in the forum.
It looks like you need to import the Ethernet library into your program