🐾 Pet Feeder ESP32 Using Telegram

This is an Internet of Things (IoT) project built using Wokwi that automates scheduled feeding for your pet. It uses an ESP32 microcontroller, a servo motor, a load cell with HX711, and an RTC module to dispense food at specific times and notifies you via Telegram about the status and remaining food weight.

🚀 Features

• Automatic scheduled feeding system
• Sends notification via Telegram after each feeding:
  • Confirms feeding
  • Displays how much food is left (in grams)
• Simulated using Wokwi

🧰 Hardware Components

• ESP32 Dev Board
• Servo Motor
• HX711 + Load Cell
• RTC Module (DS3231)
• Internet connection via Wi-Fi

🛠️ Libraries Used

Ensure these libraries are installed in your Arduino IDE:

• WiFi.h
• HTTPClient.h
• HX711.h
• RTClib.h
• Wire.h

🖼️ Wokwi Preview

💬 Telegram Setup

This project sends notifications only (no user commands). To receive messages:

1. Create a bot with @BotFather on Telegram and get your Bot Token.
2. Get your Telegram chat_id using @IDBot.
3. Paste both the token and chat_id in the code before uploading.

⏱️ How It Works

1. The ESP32 reads the current time from the RTC.
2. At the preset schedule, it:
   • Rotates the servo to dispense food.
   • Reads the weight from the load cell.
   • Sends a notification via Telegram that feeding was successful.
   • Displays how much food is left (based on weight reading).

⚙️ Configuration

Update these fields in the code:

// Configuration WiFi & Telegram
const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* botToken = "7973828596:AAEs6CKyd277c0jjzeHZVUzIG_pgfcSe7_M"; // Change The Token Bot If Needed
const char* chatId = "1087541114"; // Change The IDBot