i have a problem with my project

rezagvn · December 25, 2018, 9:06am

i want to control led and servo using web, but it says:

D:\BAHAN PI\inshaallah\inshaallah.ino: In function 'void response()':

inshaallah:68:14: error: 'statusServo' was not declared in this scope

} else if (statusServo == 0) {

^

D:\BAHAN PI\inshaallah\inshaallah.ino: In function 'void setup()':

inshaallah:108:23: error: 'statusServo' was not declared in this scope

digitalWrite(servo, statusServo);

^
exit status 1
'statusServo' was not declared in this scope

can anyone help me?

my code:

#include <TelegramBot.h>
#include <Servo.h>
#include <ESP8266WebServer.h> //memasukan library NodeMCU sebagai web server
#include <ESP8266WiFi.h> //memasukan library NodeMCU
#include <WiFiClient.h> //memasukan library NodeMCU sebagai client
#include <WiFiClientSecure.h>
ESP8266WebServer server(80); //menggunakan port 80

//Masukan nama wifi dan password yang akan dibuat
const char *ssid = "qw";
const char *password = "qwertyuiop";
int statusLED = LOW;
const char BotToken[] = "---------";


WiFiClientSecure net_ssl;
TelegramBot bot (BotToken, net_ssl);

Servo servo;

//membuat fungsi untuk kondisi led built in
void handleLedOn() {
  statusLED = LOW;
  digitalWrite(LED_BUILTIN, statusLED);
  response();
}

void handleLedOff() {
  statusLED = HIGH;
  digitalWrite(LED_BUILTIN, statusLED);
  response();
}

void LockServo() {
  servo.write(90);
  response();
}

void OpenServo() {
  servo.write(0);
  response();
}

void handleRoot() {
  response();
}

const String HtmlHtml = "<html><head>"
                        "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\" /></head>";
const String HtmlHtmlClose = "</html>";
const String HtmlTitle = "<h1>Trial kedua kendali LED</h1>
\n";
const String HtmlLedStateLow = "<big>LED is now <b>ON</b></big>
\n";
const String HtmlLedStateHigh = "<big>LED is now <b>OFF</b></big>
\n";
const String HtmlServoStateLow = "<big>The Door is opened <b>0</b></big>
\n";
const String HtmlServoStateHigh = "<big>The Door is locked <b>90</b></big>
\n";
const String HtmlButtons =
  "<a href=\"LEDOn\"><button style=\"display: block; width: 100%;\">ON</button></a>
"
  "<a href=\"LEDOff\"><button style=\"display: block; width: 100%;\">OFF</button></a>
"
  "<a href=\"Open\"><button style=\"display: block; width: 100%;\">Open</button></a>
"
  "<a href=\"Lock\"><button style=\"display: block; width: 100%;\">Lock</button></a>
";

void response() {
  String htmlRes = HtmlHtml + HtmlTitle;
  if (statusLED == LOW) {
    htmlRes += HtmlLedStateLow;
  } else if (statusLED == HIGH) {
    htmlRes += HtmlLedStateHigh;
  } else if (statusServo == 0) {
    htmlRes += HtmlServoStateLow;
  } else {
    htmlRes += HtmlServoStateHigh;
  }

  htmlRes += HtmlButtons;
  htmlRes += HtmlHtmlClose;

  server.send(200, "text/html", htmlRes);
}

void setup() {
  delay(1000); //waktu tunda 1 detik
  Serial.begin(115200);
  Serial.println();

  WiFi.softAP(ssid, password);
  //bertindak sebagai access point dengan nama wifi dan pass diatas

  IPAddress apip = WiFi.softAPIP(); //alamat IP
  Serial.print("visit: \n");
  Serial.println(apip); //menuliskan alamat IP yang bisa dikunjungi

  server.on("/", handleRoot); //memanggil fungsi handleRoot()
  server.on("/LEDOn", handleLedOn);
  server.on("/LEDOff", handleLedOff);
  server.on("/Open", OpenServo);
  server.on("/Close", LockServo);

  server.begin(); //proses pemulaian menjadi server
  Serial.println("HTTP server beginned");
  bot.begin();
  message m = bot.getUpdates();
  bot.sendMessage(m.chat_id, "The Bot is now Connected");
  servo.attach(2); //D4
  servo.write(0);
  servo.detach();
  pinMode(LED_BUILTIN, OUTPUT);
  digitalWrite(LED_BUILTIN, statusLED);
  digitalWrite(servo, statusServo);
}

void loop() {
  server.handleClient();
}

system · December 25, 2018, 9:19am

Did you mean "statusLED"?

Deva_Rishi · December 25, 2018, 9:34am

Or maybe you forgot to declare the variable (it is referenced throughout the sketch)

rezagvn · December 25, 2018, 9:42am

I have eliminated the problem for the previous one, but now a new one appears:

D:\BAHAN PI\qw\qw.ino: In function 'void response()':

qw:68:20: error: no match for 'operator==' (operand types are 'Servo' and 'int')

} else if (servo == 0) {

^

exit status 1
no match for 'operator==' (operand types are 'Servo' and 'int')

heres the new code:

#include <TelegramBot.h>
#include <Servo.h>
#include <ESP8266WebServer.h> //memasukan library NodeMCU sebagai web server
#include <ESP8266WiFi.h> //memasukan library NodeMCU
#include <WiFiClient.h> //memasukan library NodeMCU sebagai client
#include <WiFiClientSecure.h>
ESP8266WebServer server(80); //menggunakan port 80

//Masukan nama wifi dan password yang akan dibuat
const char *ssid = "qw";
const char *password = "qwertyuiop";
int statusLED = LOW;
const char BotToken[] = "---------";


WiFiClientSecure net_ssl;
TelegramBot bot (BotToken, net_ssl);

Servo servo;

//membuat fungsi untuk kondisi led built in
void handleLedOn() {
  statusLED = LOW;
  digitalWrite(LED_BUILTIN, statusLED);
  response();
}

void handleLedOff() {
  statusLED = HIGH;
  digitalWrite(LED_BUILTIN, statusLED);
  response();
}

void LockServo() {
  servo.write(90);
  response();
}

void OpenServo() {
  servo.write(0);
  response();
}

void handleRoot() {
  response();
}

const String HtmlHtml = "<html><head>"
                        "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\" /></head>";
const String HtmlHtmlClose = "</html>";
const String HtmlTitle = "<h1>Trial kedua kendali LED</h1>
\n";
const String HtmlLedStateLow = "<big>LED is now <b>ON</b></big>
\n";
const String HtmlLedStateHigh = "<big>LED is now <b>OFF</b></big>
\n";
const String HtmlServoStateLow = "<big>The Door is opened <b>0</b></big>
\n";
const String HtmlServoStateHigh = "<big>The Door is locked <b>90</b></big>
\n";
const String HtmlButtons =
  "<a href=\"LEDOn\"><button style=\"display: block; width: 100%;\">ON</button></a>
"
  "<a href=\"LEDOff\"><button style=\"display: block; width: 100%;\">OFF</button></a>
"
  "<a href=\"Open\"><button style=\"display: block; width: 100%;\">Open</button></a>
"
  "<a href=\"Lock\"><button style=\"display: block; width: 100%;\">Lock</button></a>
";

void response() {
  String htmlRes = HtmlHtml + HtmlTitle;
  if (statusLED == LOW) {
    htmlRes += HtmlLedStateLow;
  } else if (statusLED == HIGH) {
    htmlRes += HtmlLedStateHigh;
  } else if (servo == 0) {
    htmlRes += HtmlServoStateLow;
  } else {
    htmlRes += HtmlServoStateHigh;
  }

  htmlRes += HtmlButtons;
  htmlRes += HtmlHtmlClose;

  server.send(200, "text/html", htmlRes);
}

void setup() {
  delay(1000); //waktu tunda 1 detik
  Serial.begin(115200);
  Serial.println();

  WiFi.softAP(ssid, password);
  //bertindak sebagai access point dengan nama wifi dan pass diatas

  IPAddress apip = WiFi.softAPIP(); //alamat IP
  Serial.print("visit: \n");
  Serial.println(apip); //menuliskan alamat IP yang bisa dikunjungi

  server.on("/", handleRoot); //memanggil fungsi handleRoot()
  server.on("/LEDOn", handleLedOn);
  server.on("/LEDOff", handleLedOff);
  server.on("/Open", OpenServo);
  server.on("/Close", LockServo);

  server.begin(); //proses pemulaian menjadi server
  Serial.println("HTTP server beginned");
  bot.begin();
  message m = bot.getUpdates();
  bot.sendMessage(m.chat_id, "The Bot is now Connected");
  servo.attach(2); //D4
  servo.write(0);
  servo.detach();
  pinMode(LED_BUILTIN, OUTPUT);
  digitalWrite(LED_BUILTIN, statusLED);
}

void loop() {
  server.handleClient();
}

system · December 25, 2018, 9:44am

Did you miss a ".read()" out?

rezagvn · December 25, 2018, 10:38am

AWOL:
Did you miss a ".read()" out?

thanks for reminding me before, i have used "servo.read" but there is a new problem that appears

Arduino: 1.8.6 Hourly Build 2018/07/11 05:33 (Windows 10), Board: "NodeMCU 1.0 (ESP-12E Module), 80 MHz, 115200, 4M (3M SPIFFS)"

D:\BAHAN PI\qw\qw.ino: In function 'void response()':

qw:68:26: error: no matching function for call to 'Servo::read(int)'

} else if (servo.read(0)) {

^

D:\BAHAN PI\qw\qw.ino:68:26: note: candidate is:

In file included from D:\BAHAN PI\qw\qw.ino:2:0:

C:\Users\Hp\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\Servo\src/Servo.h:84:9: note: int Servo::read()

int read(); // returns current pulse width as an angle between 0 and 180 degrees

^

C:\Users\Hp\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\Servo\src/Servo.h:84:9: note: candidate expects 0 arguments, 1 provided

exit status 1
no matching function for call to 'Servo::read(int)'

Deva_Rishi · December 25, 2018, 10:45am

please keep using code tags, } else if (servo.read(0)) {probably should be } else if (servo.read()==0) { the read() function doesn't take any arguments and you were comparing with 0 before. Read the error msg thoroughly and see if you can make sense of it. If you can't then posting can help you resolve your issue.

rezagvn · December 25, 2018, 10:51am

Deva_Rishi:
please keep using code tags, } else if (servo.read(0)) {probably should be } else if (servo.read()==0) { the read() function doesn't take any arguments and you were comparing with 0 before. Read the error msg thoroughly and see if you can make sense of it. If you can't then posting can help you resolve your issue.

Thanks! the problem is solved.

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