Hello All,
My first post here and my first Arduino, so still learning tons and may have overlooked some obvious things that will make this work. I also understand from reading / research etc. that there are still some potential issues with the official wifi shield. Anyways, here is what I am trying to do. Currently just trying to control a few LEDs wired to my Arduino with my iPhone, but ultimately would like to add a servo in to open a door lock. I'm not a complete newbie when it comes to writing code, but am not very familiar with C++. Ive read and googled and searched the forum for as much info as I could find on using the iPhone with an Arduino and wifi shield, but aside from lots of information on using it with a router and an ethernet shield, I have not found much. I tried to adapt my code from the "ardumote" app tutorial, and a another post i read on the subject. Everything compiles fine, and works well with serial control from my computer, but nothing at all from my iPhone. Code / info follows:
I am using an Arduino uno rev3 with an official (Arduino) wifi shield.
I have three 5mm LEDs connected through 300 ohm resistors on pins 5, 6 and 7.
byte mac[] = { 0x7A, 0xC4, 0x0E, 0x1C, 0xAA, 0xF3 };
byte ip[] = { 192, 168, 1, 140 };
#include <WiFi.h>
#include <WiFiClient.h>
#include <WiFiServer.h>
#include <SoftwareSerial.h>
#include <Servo.h>
char ssid[] = "Leah Wifi"; // your network SSID (name)
char pass[] = "le725ahbak"; // your network password
int status = WL_IDLE_STATUS; // the Wifi radio's status
Servo myservo; // create servo object to control a servo
// a maximum of eight servo objects can be created
int pos = 0; // variable to store the servo position
SoftwareSerial mySerial(2, 3); // using soft serial to monitor what the arduino is doing. The hardware serial is busy talking to the RN-XV
void setup()
{
pinMode(5, OUTPUT); // LED5
pinMode(6, OUTPUT); // LED6
pinMode(7, OUTPUT); // LED7
Serial.begin(9600); // used to communicate with the RN-XV module.
mySerial.begin(9600); // start up the second serial port used to sending messages to Arduino Serial Monitor.
mySerial.println("Hello, world?"); // check to see if it's working
myservo.write(pos);
// attempt to connect using WPA2 encryption:
Serial.println("Attempting to connect to WPA network...");
status = WiFi.begin(ssid, pass);
// if you're not connected, stop here:
if ( status != WL_CONNECTED) {
Serial.println("Couldn't get a wifi connection");
while(true);
}
// if you are connected, print out info about the connection:
else {
Serial.println("Connected to network");
}
}
void loop() // run over and over
{
while (Serial.available())
{
char ch = Serial.read(); //hoping this will transfer the characters from UDP coming in on serial port into ch?
// the meat and potatoes portion of the sketch... this errors out but I want to get the idea of what I want to do down...
if (ch == 'A') //Check to see if the message is "A" if it is set LED7. HIGH
{
digitalWrite(7,HIGH);
mySerial.println(ch); //send the message to mySerial so I can check it.
Serial.println("LED7 on"); // send this message back via UDP back to my iphone to confirm it happened.
}
else if (ch == 'B') //check to see if the message is "B" if it is set LED7 LOW
{
digitalWrite(7,LOW);
mySerial.println(ch); //send the message to mySerial so I can check it.
Serial.println("LED7 Off"); // send this message back via UDP back to my iphone to confirm it happened.
}
else if (ch == 'C') //check to see if the message is "C" if it is set LED6 HIGH
{
digitalWrite(6,HIGH);
mySerial.println(ch); //send the message to mySerial so I can check it.
Serial.println("LED6 On"); // send this message back via UDP back to my iphone to confirm it happened.
}
else if (ch == 'D') // check to see if the message is "D" if it is set LED6 LOW
{
digitalWrite(6,LOW);
mySerial.println(ch);
Serial.println("LED6 Off"); // send this message back via UDP back to my iphone to confirm it happened.
}
else if (ch == 'E') // check to see if the message is "E" if it is set LED5 High for a few seconds then LOW again.
{
digitalWrite(5,HIGH);
delay(1000);
digitalWrite(5,LOW);
mySerial.println(ch); //send the message to mySerial so I can check it.
Serial.println("LED5 Pulsed"); // send this message back via UDP back to my iphone to confirm it happened.
}
else if (ch == 'G') // check to see if the message is "G" if it is set LED5 HIGH.
{
digitalWrite(5,HIGH);
mySerial.println(ch); // send the message to mySerial so I can check it.
Serial.println("LED5 On"); // send this message back via UDP back to my iphone to confirm it happened.
}
else if (ch == 'H') // check to see if the message is "H" if it is set LED5 LOW.
{
digitalWrite(5,LOW);
mySerial.println(ch); // send the message to mySerial so I can check it.
Serial.println("LED5 Off"); // send this message back via UDP back to my iphone to confirm it happened.
}
else if (ch == 'F') // check to see if the message is "F" if it is set all LEDs LOW.
{
digitalWrite(5,LOW);
digitalWrite(6,LOW);
digitalWrite(7,LOW);
mySerial.println(ch); // send the message to mySerial so I can check it.
Serial.println("All Off"); // send this message back via UDP back to my iphone to confirm it happened.
}
else if (ch == 'X') // check to see if the message is "X" if it is Dispense the treat.
{
myservo.attach(9); // attaches the servo on pin 9 to the servo object
Serial.println("Dispencing Treat"); // send this message back via UDP back to my iphone to confirm it happened.
for(pos = 0; pos < 20; pos += 1) // goes from 0 degrees to 180 degrees
{ // in steps of 1 degree
myservo.write(pos); // tell servo to go to position in variable 'pos'
delay(15); // waits 15ms for the servo to reach the position
}
delay(40);
for(pos = 20; pos>=1; pos-=1) // goes from 180 degrees to 0 degrees
{
myservo.write(pos); // tell servo to go to position in variable 'pos'
delay(15); // waits 15ms for the servo to reach the position
}
myservo.detach();
Serial.println("Done"); // send this message back via UDP back to my iphone to confirm it happened.
}
}
}
Hope I have included everything...
Thanks in advance,
Leighton