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46
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Using Arduino / Programming Questions / Display IP of current TCP connection on serial LCD
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on: February 17, 2012, 06:52:40 pm
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I have put together a web server which turns items on an off , photocell etc - works fine
I am now trying to add the ability to see any ip that is currently connected to my server
ON THE SERIAL LCD: i would like to:
1. LINE 1 Display - "CONNECTED" -
2. LINE 2 Display - IP number - ??
I have looked around and cant seem to find a method to display the ip
Help,
Joe
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48
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Using Arduino / Programming Questions / Trying to turn off a 4 devices and their status f lags with 1 input button
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on: February 12, 2012, 01:41:55 pm
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// declare variables
int ledPin = 6; // LED1
int heatpin = 7; // ANTENNA
int aedpin = 5; // LED3
int fedpin = 8; // fE PWR
int medpin = 9; // me - anolog pin 9 for fan control
int sensorPin = A0; // analog in 0 forlight sense
int sensorValue = 0; // integer for the analog sensor
int PIRstate = 0; // variable for PIR sensor status
int PIR = 2; // PIR sensor is connected to digital pin 2
int motorlevel = 0; // motor
String readString = String(30); // string for fetching data from address
boolean LEDON = false; // LED1 status flag
boolean HEDON = false; // ANTENNA status flag
boolean AEDON = false; // led3 status AE
boolean FEDON = false; // power FE pin status
boolean MEDON = false; // status off
boolean MEDON1 = false; //MED SPEED STATUS ON
boolean PEDON = false; // all devices status off
void setup()
{
Ethernet.begin(mac, ip, gateway, subnet ); //start Ethernet
pinMode(ledPin, OUTPUT); //Set pin 6 to output
pinMode(heatpin, OUTPUT); // set pin 7 to output
pinMode(aedpin, OUTPUT); // set pin 5 to output
pinMode(fedpin, OUTPUT); // set pin 8 to output
pinMode(PIR, INPUT); // set pir to input
pinMode(medpin, OUTPUT); // set pin a3 to output
sensorValue = analogRead(sensorPin);
}
[code]
void loop()
EthernetClient client = server.available(); // Create a client connection
if (client) {
boolean current_line_is_blank = true; //new
while (client.connected()) {
if (client.available()) {
char c = client.read();
// if we've gotten to the end of the line (received a newline
// character) and the line is blank, the http request has ended,
// send a reply
if (readString.length() < 30) { //read char by char HTTP request
readString.concat(c);
} //store characters to string
// HTML Code
if (c == '\n' && current_line_is_blank) {
// HTML Code
client.println(F("HTTP/1.1 200 OK")); //output HTML data starting with standard header
client.println(F("Content-Type: text/html"));
client.println();
client.print(F("<body style=background-color:BLACK>")); //set background to BLACK
// Auto refresh webpage every 60 seconds
client.println(F("<META HTTP-EQUIV=REFRESH CONTENT=60 URL=>"));
client.println("<center>");
client.println(F("<font color=’green’><h1>INTERNET -- CONTROL </font></h1>/"));//send first heading
client.println(F("<hr />"));
client.println(F("<font color=’#0D8112’ size=’5′> "));
client.println("</center>");
motorlevel = 0;
}
//indexOf("L=")
if (c == '\n') { //if HTTP request has ended
int Le = readString.indexOf("L="); //led here is a key component of where
int He = readString.indexOf("H="); //the status is being read by the arduino
int Ae = readString.indexOf("A=");
int Fe = readString.indexOf("F=");
int Me = readString.indexOf("M="); //motor / fan
int Pe = readString.indexOf("P="); //master all OFF
// Check if anything should be lighted or turned on
if (Le > 1){
if (readString.substring(Le,(Le+3)) == "L=1") { //led has to be turned ON
digitalWrite(ledPin, HIGH); // set the LED on
LEDON = true;
}
if (readString.substring(Le,(Le+3)) == "L=0") {
//led has to be turned OFF
digitalWrite(ledPin, LOW); // set the LED OFF
LEDON = false;
}
}
// all power to off check
if (Pe > 1){
if (readString.substring(Pe,(Pe+3)) == "P=0") { //ALL OFF
motorlevel = 0;
analogWrite(medpin, motorlevel); // set the LED1 off
digitalWrite(ledPin, LOW); // set the LED OFF
digitalWrite(heatpin, LOW); // set the heat OFF
digitalWrite(aedpin, LOW); // set the ANT OFF
digitalWrite(fedpin, LOW); // set the PWR OFF
PEDON = true;
} }
client.print(F("<form method=get name=LED>"));
client.print(F("<input type='radio' name='L' value='1'>LED1 ON<br>"));
client.print(F("<input type='radio' name='L' value='0'>LED1 OFF<br><br>"));
client.print(F("<input type='radio' name='P' value='0'>ALL OFF<br><br>"));
client.println(F("<input type=submit value=submit></form>"));
client.println(F("<hr />"));
// DETERMINE WHAT STATUS TO PRINT
client.print(F("<font size=’5′>LED1 status: "));
if (LEDON == true) {
client.println(F("<font color='#FF0000' size=’5′>ON</font>")); //red
}
else {
client.println(F("<font color='#0099FF' size=’5′>OFF</font>")); //blue
}
// check for all off status condition, if so turn all status flags to off
if (PEDON == true) {
LEDON = false; // LED1 status off
HEDON = false; // ANTENNA status off
AEDON = false; // led3 status AE off
FEDON = false; // power FE pin status off
MEDON = false;
MEDON1 = false; // off
client.println(F("<font color='#0099FF' size=’5′>OFF</font>")); //blue
}
1. code is used to turn on /off several devices by using the input button commands - this worksI did not include all the device code as it might be to long to post Problem: I am trying to add another input command which would turn all devices and their status off at once. Joe [/code] |
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51
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Using Arduino / Programming Questions / Re: When using analogWrite output only goes high 255 or low 0 -SOLVED
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on: February 08, 2012, 11:27:05 pm
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int medpin = A5; //analog
int motorlevel = 0; // motor
pinMode(medpin, OUTPUT); // set pin a5 to output
//lets check if anything should be turned on
// - Check the value of M and if it is =1 then turn motor / fan on full (255) or if M is =0 turn fan on mid speed (110)
if (Me > 1){
if (readString.substring(Me,(Me+3)) == "M=1") { //motor has to be turned ON
motorlevel = 255; / full max
analogWrite(medpin, motorlevel); // set the motor on
}
else if (readString.substring(Me,(Me+3)) == "M=0") {
motorlevel = 110; //motor should be set to or mid speed / dim
analogWrite(medpin,motorlevel); // set the motorLED mid speed
}
}
// HTML CODE
client.print(F("<form method=get name=LED>"));
client.print(F("<input type='radio' name='M' value='1'>FAN HIGH<br>")); // MAKE FAN GO FULL SPEED
client.print(F("<input type='radio' name='M' value='0'>FAN MED<br><br>")); // MAKE FAN GO HALF SPEED
client.println(F("<input type=submit value=submit></form>"));
client.println(F("<hr />"));
PROBLEM:
The above code turns the fan / motor on or off but does not make it go mid speed.... when i look at the voltage at the analog out pin 5 it goes to 4.92v if M=1
but when M= 0 and the motorvalue gets set to 110 - the voltages stays the same .
If i set motorvalue to 0 or a very low figure then the voltage drops to 0.
What gives?
Joe
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52
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Using Arduino / Programming Questions / HTML INPUT BUTTON - RANGE SLIDER - HOW to Access value to contrl a fan?
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on: February 08, 2012, 12:16:35 pm
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// From a browser use a horizontal Slider button to increase - or decrease speed of a fan using pwm analog input A3/ output A4
client.println(F("<hr >"));
client.print(F("<form method=get name=N>")); //n for fan
client.println("<input type='range' min='0' max='50' value='0' step='5' >");
client.println(F("<input type=submit value=submit></form>"));
client.println(F("<hr />"));
1. If i use the code above with a browser (chrome) that supports html5 tags - i see the slider and can move it -GOOD
2. I cant seem to figure how to access the value of the input button and send it to an analog input
3. which intern would control an analog output to speed up or slow down a Fan using pwm
Any help would be much appreciated
Joe
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54
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Using Arduino / Programming Questions / Re: Web Sever Will not respond When I add 1 line of Println code
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on: February 07, 2012, 06:52:50 pm
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I recoded every line that i could using the :
client.println(F("<form method=get name=LED>"));
--------------------------------------------------------------------------
Bingo!! - The server is now working well, quick and reliable responses.
---------------------------------------------------------------------------
I had been pointed in that direction before but I did not go far enough..
NOW:
I am able to add the input buttons as suggested and more..
I think the low memory was creeping in at various times and throwing me off.
Is there a method or a place to look to see what the arduino memory level is?
I have now learned the hard way that it can get you when you least expect it, so i would like to be able to keep an eye on it.
Thanks for taking the time to help me along.
Arduino Forum sure is a great resource!!
Joe
Thanks
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55
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Using Arduino / Programming Questions / Re: Web Sever Will not respond When I add 1 line of Println code
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on: February 07, 2012, 11:12:14 am
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PaulS,
Thanks for the pointers and code breakdown, it sure looks better, however If i try it , the buttons do not respond
I have been piecing a web server with code from various sketches and adding my own
I am learning day by day but need some experts to keep me on the right track
Its crude but works, minus some things i want to clean up
I would appreciate it If you or anyone interested would have a look at the complete code and suggest changes to make it better.
1. I would like the button layout you suggest to work but so far no go.
2. Any other change to clean it up would be also very much appreciated.
I plan on posting the code for all to use, once things are cleaned up ...
I have Attached the sketch
Thanks
Joe
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56
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Using Arduino / Programming Questions / Web Sever Will not respond When I add 1 line of Println code
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on: February 06, 2012, 10:59:33 pm
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//controlling led via checkbox
// this line will provides the radiobuttons that provide the input
client.println("<form method=get name=LED> <input type='radio' name='L' value='1'>LED1 ON<br><input type='radio' name='L' value='0'>LED1 OFF<br><br><input type='radio' name='H' value='1'>SD9 VERT ANT ON<br><input type='radio' name='H' value='0'>G5RV ANT ON<br><br><input type='radio' name='A' value='1'>LED3 ON<br><input type='radio' name='A' value='0'>LED3 OFF<br><br><input type='radio' name='F' value='1'>PWR ON<br><input type='radio' name='F' value='0'>PWR OFF<br><br><input type=submit value=submit></form>");
// button functions --test area TEST
client.println("<form method=get name=LED>");
client.println("<button name=F value=1 type=submit style=height:25px;width:100px>PWR On</button>");
client.println("<button name=F value=0 type=submit style=height:25px;width:100px>PWR Off</button>");
//client.println("<button name=H value=1 type=submit style=height:25px;width:100px>SD9 ANT</button>"); // server will not respond
client.println("</form><br />");
client.println("<hr />");
PROBLEM:
1. The code above works as long as i do not add the line indicated above.
2. If i delete one of the other button inputs and add the offending line it works?? Any idea what is the problem?
3. Also, i would like to break up the first set of form buttons into separate code lines but have not been able to get the correct syntax tax
Thanks
running ide 1
Joe
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57
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Using Arduino / Programming Questions / Re: Cannot Change - ARDUINO HTML Color code To Display Correctly
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on: February 04, 2012, 10:41:22 pm
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James C4S, Thanks for the quick reply
1. I recoded all colors with 'xxxxxx' - Single quotes and removed the # - this seems to have stabilized the web server.
2. Your second pointer about saving ram...sounds like a good approach - i see the syntax but don't quite follow, could you provide an example for the code below?
client.println("<font color ='FFFF00' >The Room is now BRIGHT </font>"); //yellow
Joe
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58
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Using Arduino / Programming Questions / Cannot Change - ARDUINO HTML Color code To Display Correctly
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on: February 04, 2012, 09:49:13 pm
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// HTML Code to print html web page
//Use photo cell to print html page WHEN The Room is Bright >> in yellow or PRINT The Room is now Dark >> in red
//Sense detection works fine but cannot seem to get the proper code to work to change the text to proper colors
client.println("<font color=’red’><h1>INTERNET REMOTE CONTROL </font></h1>");//send first heading
client.println("<hr />");
client.println("<font color=’blue’ size=’5′>Analog input: "); //output some sample data to browser
sensorValue = analogRead(sensorPin);
// Print - when room is dark in red or print light in yellow when room has light
if (sensorValue < 250) {
client.println("<font color =#FF0000 >The Room is now DARK </font>"); //works
}
else {
//client.println("<font size=’5′ font color =#FFFF00 >The Room is Bright </font>"); //THIS LINE DOES NOT WORK - hangs my server
client.println("The Room is Bright"); // HOWEVER THIS WORKS but no color change
}
client.println("<hr />");
client.println("<br />");//some space between lines
Thanks for any help -Joe
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| Arduino Forum :: Members :: joeman