← Back to projects
iot · 2024

Smart Doorbell

A smart doorbell system using ESP8266 and ESP32 microcontrollers communicating via the ESP-NOW protocol, with Home Assistant webhook integration for notifications and automations.

Source Code

Tech Stack

MicroPython
ESP8266
ESP32
ESP-NOW
Home Assistant

A two-part IoT doorbell: a battery-powered ESP8266 sender at the door and an ESP32 receiver inside the house. They communicate wirelessly via ESP-NOW (no WiFi router needed for the link), and the receiver triggers Home Assistant webhooks for notifications, automations, and logging.

Built with MicroPython for rapid prototyping and easy OTA updates.