ESP32 Forum

Posted: **Sun Sep 04, 2022 9:33 pm**

Guys, I've already managed to make the telegram bot receive messages from the X condition state as I put it in the code, but in this condition it keeps sending a message all the time, could someone help me how do I disable notifications and enable when, like this does not pollute the chat.

Code: Select all

#include <WiFi.h>
#include <WiFiClientSecure.h>
#include <UniversalTelegramBot.h>
#include <ArduinoJson.h>

// Replace with your network credentials
const char* ssid = "ssid";
const char* password = "password";

#define BOTtoken "xxxx:xxxxxx"
#define CHAT_ID "xxxxxx"

WiFiClientSecure client;
UniversalTelegramBot bot(BOTtoken, client);

const int trigPin = 5;
const int echoPin = 18;
//Telegram

//define sound speed in cm/uS
#define SOUND_SPEED 0.034
//#define CM_TO_INCH 0.393701

long duration;
float distanceCm;
float distanceInch;

void setup() {
 Serial.begin(115200);
   pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
  pinMode(echoPin, INPUT); // Sets the echoPin as an Input

  // Attempt to connect to Wifi network:
  Serial.print("Connecting Wifi: ");
  Serial.println(ssid);

  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  client.setCACert(TELEGRAM_CERTIFICATE_ROOT); // Add root certificate for api.telegram.org
  
  while (WiFi.status() != WL_CONNECTED) {
    Serial.print(".");
    delay(500);
  }

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

 bot.sendMessage(CHAT_ID, "Bot caixa de agua!", "");

}

void loop() {  // Clears the trigPin
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  // Sets the trigPin on HIGH state for 10 micro seconds
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  
  // Reads the echoPin, returns the sound wave travel time in microseconds
  duration = pulseIn(echoPin, HIGH);
  delay (2000);
  
  // Calculate the distance
  distanceCm = duration * SOUND_SPEED/2;
  
  // Convert to inches
//  distanceInch = distanceCm * CM_TO_INCH;
if(  (distanceCm > 0) && (distanceCm <= 40)   )
{
  Serial.println("Caixa 100% cheia!");
 // bot.sendMessage(CHAT_ID, "Caixa 100% cheia!", "");
} else
if(  (distanceCm > 40) && (distanceCm <= 50)  )
{
  Serial.println("Caixa 70% cheia!");
//  bot.sendMessage(CHAT_ID, "Caixa 70% cheia!", "");
}else
if(  (distanceCm > 50) && (distanceCm <= 70)  )
{
  Serial.println("Caixa 50% cheia!");
}else
if(  (distanceCm > 70) && (distanceCm <= 90)  )
{
  Serial.println("Caixa quase vazia!");
}else
if(  (distanceCm > 90) && (distanceCm <= 150)  )
{
  Serial.println("Caixa vazia!");
  bot.sendMessage(CHAT_ID, "Caixa vazia!", "");
}

  // Prints the distance in the Serial Monitor
  Serial.print("Distance (cm): ");
  Serial.println(distanceCm);
//  Serial.print("Distance (inch): ");
//  Serial.println(distanceInch);
  
  delay(1000);
}

Posted: **Thu Aug 31, 2023 7:28 pm**

In order to set your code to send Telegram notification only once when the event occurs and not continuously, add the following code to the sketch so that the event occurs ----sends notification-----resets event.

bool current_state1 = LOW;
bool previous_state1 = LOW;

void loop();
current_state1 = digitalRead(input1);
if (current_state1 != previous_state1) {
if (current_state1 == HIGH) {
delay (100);
bot.sendMessage(CHAT_ID, "Unit1 is OFF", "");}
if (current_state1 == LOW){
delay (100);
bot.sendMessage(CHAT_ID, "Unit1 is ON", "");}
previous_state1 = current_state1;
}

In this manner the sketch will send notification only once when input1 becomes HIGH. It will only send notification next time when the input1 goes LOW and then HIGH again.

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ESP32 - telegram disable/enable notifications

ESP32 - telegram disable/enable notifications

Re: ESP32 - telegram disable/enable notifications