Automatic Fish Feeder

About the project

The automatic fish feeder is a compact embedded system that uses an ESP32 with MicroPython to feed fish at fixed times.
The DS1307 RTC stores all feeding times persistently and a continuous-rotation servo dispenses food precisely.

This project demonstrates experience with embedded software, hardware control, threading, and lightweight network communication.

---

Key components

Time-controlled feeding

• 18 configurable time slots
• Persistently stored in RTC-NVRAM
• Works without Wi-Fi dependency

Servo control

• PWM-controlled continuous-rotation servo
• Separate thread for timing
• Reliable behavior during network activity

Manual operation

• Physical button (with debouncing)
• Immediate feeding, even without network

Network features

• Small TCP protocol for remote configuration
• Reading and setting via a client
• Automatic NTP sync (with failsafe logic)

---

Result

An autonomous, reliable and easily configurable system that precisely executes feeding times — ideal as a demonstration of firmware development, low-level hardware, and embedded architecture.