Solar-Powered ESP32-CAM Security System Documentation

Summary

This document describes a solar-powered security system that utilizes an ESP32-CAM module for surveillance, a PIR (Passive Infrared) sensor for motion detection, and a piezo buzzer for an audible alert. The system is powered by a solar panel that charges a 2000mAh battery through a CN3065 solar charge controller. The ESP32-CAM module processes the input from the PIR sensor and controls the buzzer based on the detection of motion.

Component List

Solar Panel

• Description: A photovoltaic panel that converts sunlight into electrical energy.
• Pins: +, -

CN3065 Solar Charge Controller

• Description: A charge controller designed for charging batteries with solar power.
• Pins: SOLAR +, SOLAR -, BAT +, BAT -, SYS +, SYS -

2000mAh Battery

• Description: A rechargeable lithium-ion battery that provides power to the system.
• Pins: VCC, GND

ESP32-CAM

• Description: A small-sized ESP32-based board with an integrated camera and Wi-Fi capabilities.
• Pins: 5V, GND, IO12, IO13, IO15, IO14, IO2, IO4, VOT, VOR, VCC, IO0, IO16, 3V3

PIR/Motion Sensor

• Description: A sensor that detects motion based on changes in infrared radiation.
• Pins: GND, OUTPUT, VCC

Piezo Buzzer

• Description: An electronic device that emits sound when an electric signal is applied.
• Pins: pin 1, pin 2

Wiring Details

Solar Panel

• + connected to SOLAR + on CN3065 Solar Charge Controller
• - connected to SOLAR - on CN3065 Solar Charge Controller

CN3065 Solar Charge Controller

• SOLAR + connected to + on Solar Panel
• SOLAR - connected to - on Solar Panel
• BAT + connected to VCC on 2000mAh Battery
• BAT - connected to GND on 2000mAh Battery
• SYS + connected to 5V on ESP32-CAM and VCC on PIR/Motion Sensor
• SYS - connected to GND on ESP32-CAM, GND on PIR/Motion Sensor, and pin 1 on Piezo Buzzer

2000mAh Battery

• VCC connected to BAT + on CN3065 Solar Charge Controller
• GND connected to BAT - on CN3065 Solar Charge Controller

ESP32-CAM

• 5V connected to SYS + on CN3065 Solar Charge Controller
• GND connected to SYS - on CN3065 Solar Charge Controller
• IO13 connected to OUTPUT on PIR/Motion Sensor
• IO15 connected to pin 2 on Piezo Buzzer

PIR/Motion Sensor

• GND connected to SYS - on CN3065 Solar Charge Controller
• OUTPUT connected to IO13 on ESP32-CAM
• VCC connected to SYS + on CN3065 Solar Charge Controller

Piezo Buzzer

• pin 1 connected to SYS - on CN3065 Solar Charge Controller
• pin 2 connected to IO15 on ESP32-CAM

Documented Code

No code has been provided for the microcontrollers in the circuit. The ESP32-CAM would typically require firmware to handle the input from the PIR sensor and to control the piezo buzzer. The firmware would also manage the camera module for capturing images or video upon detecting motion. Since no code is available, this section cannot be completed at this time.