Hello people at the Arduino forum. I am using ESP8266 (NodeMCU v1.0, rev 2). I need to control 4 buttons, but for some reason I can not compile the code (later the buttonns will increase to 40).
Can someone help me debug this code.
https://www.dropbox.com/s/gqbmf9cjxuga4qn/Code.txt?dl=0
Please post your program here. See How to use the Forum.
...R
It is more than "9000 characters" which is the reason why I used dropbox.
the code on drop box misses all /, " and *
Now its 8500 characters, so it should work.
// Load Wi-Fi library
#include <ESP8266WiFi.h>
// Replace with your network credentials
const char* ssid = "MY WIFI NAME";
const char* password = "MY WIFI PASSWORD";
// Set web server port number to 80
WiFiServer server(80);
// Variable to store the HTTP request
String header;
// Auxiliar variables to store the current output state
String output7State = "off";
String output6State = "off";
String output5State = "off";
String output4State = "off";
// Assign output variables to GPIO pins
const int output7 = 7;
const int output6 = 6
const int output5 = 5;
const int output4 = 4;
void setup() {
Serial.begin(115200);
// Initialize the output variables as outputs
pinMode(output7, OUTPUT);
pinMode(output6, OUTPUT);
pinMode(output5, OUTPUT);
pinMode(output4, OUTPUT);
// Set outputs to LOW
digitalWrite(output7, LOW);
digitalWrite(output6, LOW);
digitalWrite(output5, LOW);
digitalWrite(output4, LOW);
// Connect to Wi-Fi network with SSID and password
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
// Print local IP address and start web server
Serial.println("");
Serial.println("WiFi connected.");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
server.begin();
}
void loop(){
WiFiClient client = server.available(); // Listen for incoming clients
if (client) { // If a new client connects,
Serial.println("New Client."); // print a message out in 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
header += c;
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("Connection: close");
client.println();
// turns the GPIOs on and off
if (header.indexOf("GET /7/on") >= 0) {
Serial.println("GPIO 7 on");
output7State = "on";
digitalWrite(output7, HIGH);
} else if (header.indexOf("GET /7/off") >= 0) {
Serial.println("GPIO 7 off");
output7State = "off";
digitalWrite(output7, LOW);
} else if (header.indexOf("GET /6/on") >= 0) {
Serial.println("GPIO 6 on");
output6State = "on";
digitalWrite(output6, HIGH);
} else if (header.indexOf("GET /6/off") >= 0) {
Serial.println("GPIO 6 off");
output6State = "off";
digitalWrite(output6, LOW);
}
if (header.indexOf("GET /5/on") >= 0) {
Serial.println("GPIO 5 on");
output5State = "on";
digitalWrite(output5, HIGH);
} else if (header.indexOf("GET /5/off") >= 0) {
Serial.println("GPIO 5 off");
output5State = "off";
digitalWrite(output5, LOW);
} else if (header.indexOf("GET /4/on") >= 0) {
Serial.println("GPIO 4 on");
output4State = "on";
digitalWrite(output4, HIGH);
} else if (header.indexOf("GET /4/off") >= 0) {
Serial.println("GPIO 4 off");
output4State = "off";
digitalWrite(output4, LOW);
}
// Display the HTML web page
client.println("<!DOCTYPE html><html>");
client.println("<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">");
client.println("<link rel=\"icon\" href=\"data:,\">");
// CSS to style the on/off buttons
// Feel free to change the background-color and font-size attributes to fit your preferences
client.println("<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}");
client.println(".button { background-color: #195B6A; border: none; color: white; padding: 16px 40px;");
client.println("text-decoration: none; font-size: 30px; margin: 2px; cursor: pointer;}");
client.println(".button2 {background-color: #77878A;}</style></head>");
client.println("<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}");
client.println(".button3 { background-color: #195B6A; border: none; color: white; padding: 16px 40px;");
client.println("text-decoration: none; font-size: 30px; margin: 2px; cursor: pointer;}");
client.println(".button4 {background-color: #77878A;}</style></head>");
// Web Page Heading
client.println("<body><h1>ESP8266 Web Server</h1>");
// Display current state, and ON/OFF buttons for GPIO 7
client.println("<p>GPIO 7 - State " + output7State + "</p>");
// If the output7State is off, it displays the ON button
if (output7State=="off") {
client.println("<p><a href=\"/7/on\"><button class=\"button4\">ON</button></a></p>");
} else {
client.println("<p><a href=\"/7/off\"><button class=\"button4 button3\">OFF</button></a></p>");
}
// Display current state, and ON/OFF buttons for GPIO 6
client.println("<p>GPIO 6 - State " + output6State + "</p>");
// If the output6State is off, it displays the ON button
if (output6State=="off") {
client.println("<p><a href=\"/6/on\"><button class=\"button3\">ON</button></a></p>");
} else {
client.println("<p><a href=\"/6/off\"><button class=\"button4 button3\">OFF</button></a></p>");
}
// Display current state, and ON/OFF buttons for GPIO 5
client.println("<p>GPIO 5 - State " + output5State + "</p>");
// If the output5State is off, it displays the ON button
if (output5State=="off") {
client.println("<p><a href=\"/5/on\"><button class=\"button\">ON</button></a></p>");
} else {
client.println("<p><a href=\"/5/off\"><button class=\"button button2\">OFF</button></a></p>");
}
// Display current state, and ON/OFF buttons for GPIO 4
client.println("<p>GPIO 4 - State " + output4State + "</p>");
// If the output4State is off, it displays the ON button
if (output4State=="off") {
client.println("<p><a href=\"/4/on\"><button class=\"button\">ON</button></a></p>");
} else {
client.println("<p><a href=\"/4/off\"><button class=\"button button2\">OFF</button></a></p>");
}
client.println("</body></html>");
// 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
}
}
}
// Clear the header variable
header = "";
// Close the connection
client.stop();
Serial.println("Client disconnected.");
Serial.println("");
}
}
one more ; and it compiles
Juraj:
one more ; and it compiles
On which line?
Edit: after putting the semicolons on line "const int output6 = 6;". I still get "error exit status 1".
Are you using the Arduino IDE? In v 1.8.5 the line with the error is highlighted when I compile for an ESP8266.
exit status 1
expected ',' or ';' before 'const'
When I add the ; it compiles.
ArakelTheDragon:
It is more than "9000 characters"
Then add your .ino file as an attachment.
...R
Arduino IDE 1.8.5.
Windows 7 Pro 64bit, original.
Here is the ".ino" file and here is the error:
"C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiGeneric.h:27:22: fatal error: functional: No such file or directory
#include "
The whole error is:
Arduino: 1.8.5 (Windows 7), Board: "NodeMCU 1.0 (ESP-12E Module), 80 MHz, Flash, 4M (1M SPIFFS), v2 Lower Memory, Serial, None, All Flash Contents, 115200"
In file included from sketch\Working good web server controls 2 LEDs only on port 80 10.11.2018.c:7:0:
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFi.h:27:8: error: expected identifier or '(' before string constant
extern "C" {
^
In file included from C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\cores\esp8266/IPAddress.h:25:0,
from C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFi.h:31,
from sketch\Working good web server controls 2 LEDs only on port 80 10.11.2018.c:7:
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\cores\esp8266/Printable.h:25:1: error: unknown type name 'class'
class Print;
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\cores\esp8266/Printable.h:33:1: error: unknown type name 'class'
class Printable {
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\cores\esp8266/Printable.h:33:17: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
class Printable {
^
In file included from C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFi.h:31:0,
from sketch\Working good web server controls 2 LEDs only on port 80 10.11.2018.c:7:
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\cores\esp8266/IPAddress.h:29:1: error: unknown type name 'class'
class IPAddress: public Printable {
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\cores\esp8266/IPAddress.h:29:16: error: expected '=', ',', ';', 'asm' or '__attribute__' before ':' token
class IPAddress: public Printable {
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\cores\esp8266/IPAddress.h:98:1: error: unknown type name 'IPAddress'
extern const IPAddress INADDR_NONE;
^
In file included from C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFi.h:33:0,
from sketch\Working good web server controls 2 LEDs only on port 80 10.11.2018.c:7:
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiType.h:101:5: error: unknown type name 'WiFiMode'
WiFiMode oldMode;
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiType.h:102:5: error: unknown type name 'WiFiMode'
WiFiMode newMode;
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiType.h:107:5: error: unknown type name 'String'
String ssid;
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiType.h:108:5: error: unknown type name 'uint8'
uint8 bssid[6];
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiType.h:109:5: error: unknown type name 'uint8'
uint8 channel;
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiType.h:114:5: error: unknown type name 'String'
String ssid;
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiType.h:115:5: error: unknown type name 'uint8'
uint8 bssid[6];
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiType.h:116:5: error: unknown type name 'WiFiDisconnectReason'
WiFiDisconnectReason reason;
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiType.h:121:5: error: unknown type name 'uint8'
uint8 oldMode;
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiType.h:122:5: error: unknown type name 'uint8'
uint8 newMode;
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiType.h:127:5: error: unknown type name 'IPAddress'
IPAddress ip;
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiType.h:128:5: error: unknown type name 'IPAddress'
IPAddress mask;
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiType.h:129:5: error: unknown type name 'IPAddress'
IPAddress gw;
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiType.h:134:5: error: unknown type name 'uint8'
uint8 mac[6];
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiType.h:135:5: error: unknown type name 'uint8'
uint8 aid;
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiType.h:140:5: error: unknown type name 'uint8'
uint8 mac[6];
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiType.h:141:5: error: unknown type name 'uint8'
uint8 aid;
^
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiType.h:147:5: error: unknown type name 'uint8'
uint8 mac[6];
^
In file included from C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiSTA.h:28:0,
from C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFi.h:34,
from sketch\Working good web server controls 2 LEDs only on port 80 10.11.2018.c:7:
C:\Users\ArakelTheDragon\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2\libraries\ESP8266WiFi\src/ESP8266WiFiGeneric.h:27:22: fatal error: functional: No such file or directory
#include <functional>
^
compilation terminated.
exit status 1
Error compiling for board NodeMCU 1.0 (ESP-12E Module).
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
Wifi_control_LEDs.ino (8.25 KB)
you have still something strange in you ino file before #include. delete all lines until #include and eventually type again the #include line
Does not work. The strange part is that when I copy the following code into the first ".ino" file it does not work. When I copy it in the blink example, it works.
/*********
Rui Santos
Complete project details at http://randomnerdtutorials.com
*********/
// Load Wi-Fi library
#include <ESP8266WiFi.h>
// Replace with your network credentials
const char* ssid = "UPC3042654";
const char* password = "PAMEKZNN";
// Set web server port number to 80
WiFiServer server(80);
// Variable to store the HTTP request
String header;
// Auxiliar variables to store the current output state
String output5State = "off";
String output4State = "off";
// Assign output variables to GPIO pins
const int output5 = 5;
const int output4 = 4;
void setup() {
Serial.begin(115200);
// Initialize the output variables as outputs
pinMode(output5, OUTPUT);
pinMode(output4, OUTPUT);
// Set outputs to LOW
digitalWrite(output5, LOW);
digitalWrite(output4, LOW);
// Connect to Wi-Fi network with SSID and password
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
// Print local IP address and start web server
Serial.println("");
Serial.println("WiFi connected.");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
server.begin();
}
void loop(){
WiFiClient client = server.available(); // Listen for incoming clients
if (client) { // If a new client connects,
Serial.println("New Client."); // print a message out in 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
header += c;
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("Connection: close");
client.println();
// turns the GPIOs on and off
if (header.indexOf("GET /5/on") >= 0) {
Serial.println("GPIO 5 on");
output5State = "on";
digitalWrite(output5, HIGH);
} else if (header.indexOf("GET /5/off") >= 0) {
Serial.println("GPIO 5 off");
output5State = "off";
digitalWrite(output5, LOW);
} else if (header.indexOf("GET /4/on") >= 0) {
Serial.println("GPIO 4 on");
output4State = "on";
digitalWrite(output4, HIGH);
} else if (header.indexOf("GET /4/off") >= 0) {
Serial.println("GPIO 4 off");
output4State = "off";
digitalWrite(output4, LOW);
}
// Display the HTML web page
client.println("<!DOCTYPE html><html>");
client.println("<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">");
client.println("<link rel=\"icon\" href=\"data:,\">");
// CSS to style the on/off buttons
// Feel free to change the background-color and font-size attributes to fit your preferences
client.println("<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}");
client.println(".button { background-color: #195B6A; border: none; color: white; padding: 16px 40px;");
client.println("text-decoration: none; font-size: 30px; margin: 2px; cursor: pointer;}");
client.println(".button2 {background-color: #77878A;}</style></head>");
// Web Page Heading
client.println("<body><h1>ESP8266 Web Server</h1>");
// Display current state, and ON/OFF buttons for GPIO 5
client.println("<p>GPIO 5 - State " + output5State + "</p>");
// If the output5State is off, it displays the ON button
if (output5State=="off") {
client.println("<p><a href=\"/5/on\"><button class=\"button\">ON</button></a></p>");
} else {
client.println("<p><a href=\"/5/off\"><button class=\"button button2\">OFF</button></a></p>");
}
// Display current state, and ON/OFF buttons for GPIO 4
client.println("<p>GPIO 4 - State " + output4State + "</p>");
// If the output4State is off, it displays the ON button
if (output4State=="off") {
client.println("<p><a href=\"/4/on\"><button class=\"button\">ON</button></a></p>");
} else {
client.println("<p><a href=\"/4/off\"><button class=\"button button2\">OFF</button></a></p>");
}
client.println("</body></html>");
// 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
}
}
}
// Clear the header variable
header = "";
// Close the connection
client.stop();
Serial.println("Client disconnected.");
Serial.println("");
}
}
when I copy the following code into the first ".ino" file
What is the "first .ino file"?
The code attached on post#9 compiles for me.
from sketch\Working good web server controls 2 LEDs only on port 80 10.11.2018.c:7:
Is your sketch named:
Working good web server controls 2 LEDs only on port 80 10.11.2018.c
and not:
Working good web server controls 2 LEDs only on port 80 10.11.2018.ino
?
Using the .c extension will skip all of the Arudino core additions.