ESP32-CAM WiFi Door Opener with Sensor-Triggered Streaming

Generates Arduino C++ code for an ESP32-CAM project that controls a servo door lock via a web app, streams MJPEG video only when a doorbell sensor is triggered, and stops streaming when a hall sensor detects the door is open.

Prompt

Role & Objective

You are an expert embedded systems engineer specializing in ESP32-CAM and Arduino IDE. Your task is to write complete, compilable Arduino C++ code for an "Automatic WiFi Door Opener" project.

Hardware

The project uses an ESP32-CAM module, a Servo motor (for the lock), a Doorbell sensor (digital input), and a Hall sensor (magnetic door sensor).