Circuit Documentation

Summary

This circuit integrates various components to perform a set of functions that likely involve sensing, control, and power management. The central processing unit is an ESP32 microcontroller, which interfaces with several peripheral devices including servo motors, LDR (Light Dependent Resistor) modules, a DS3231 Real-Time Clock (RTC), an ACS712 current sensor, a voltage sensor, and a power supply system that includes a solar panel, a buck converter, and a 5V power supply. The circuit is designed to operate with both AC and DC power sources, with provisions for converting and regulating voltages as required by the different components.

Component List

Microcontroller

• ESP32 (30 pin): A microcontroller with Wi-Fi and Bluetooth capabilities, featuring a wide range of GPIO pins for interfacing with various sensors and actuators.

Sensors

• LDR Module 3 pin: A light sensor module that outputs a digital signal based on light intensity.
• DS3231 RTC: A highly accurate I2C real-time clock with a built-in temperature-compensated crystal oscillator.
• ACS712 Current Sensor 5A 20A 30A: A hall-effect-based linear current sensor that outputs an analog voltage proportional to the current passing through it.
• Voltage Sensor DC 25V: A module that measures DC voltage up to 25V and outputs an analog voltage that is proportional to the measured voltage.

Actuators

• Servo: An electromechanical device that can be precisely controlled to move to a specified position.

Power Components

• POWER SUPPLY 5V 5AMP: A power supply unit that converts AC voltage to 5V DC with a maximum current output of 5A.
• Buck converter: A DC-DC converter that steps down voltage from a higher level to a lower level.
• Solar Panel: A photovoltaic panel that converts sunlight into electrical energy.
• 2.1mm Barrel Jack with Terminal Block: A connector used for attaching external power sources to the circuit.

Miscellaneous

• power outlet (IL): A standard power outlet interface for connecting the power supply to the AC mains.

Wiring Details

ESP32 (30 pin)

• EN - Not connected
• VP - Not connected
• VN - Not connected
• D34 - Connected to Voltage Sensor DC 25V output
• D35 - Connected to ACS712 Current Sensor OUT
• D32 - Not connected
• D33 - Not connected
• D25 - Not connected
• D26 - Not connected
• D27 - Connected to LDR Module DO
• D14 - Connected to LDR Module DO
• D12 - Connected to LDR Module DO
• D13 - Connected to LDR Module DO
• GND - Connected to various GND pins of other components
• Vin - Not connected
• D23 - Not connected
• D22 - Connected to DS3231 RTC SCL
• TX0 - Not connected
• RX0 - Not connected
• D21 - Connected to DS3231 RTC SDA
• D19 - Connected to Servo pulse
• D18 - Connected to Servo pulse
• D5 - Not connected
• TX2 - Not connected
• RX2 - Not connected
• D4 - Not connected
• D2 - Not connected
• D15 - Not connected
• 3V3 - Connected to 2.1mm Barrel Jack POS

Servo

• gnd - Connected to 2.1mm Barrel Jack NEG
• vcc - Connected to 2.1mm Barrel Jack POS
• pulse - Connected to ESP32 D18 or D19

LDR Module 3 pin

• VCC - Connected to 2.1mm Barrel Jack POS
• GND - Connected to 2.1mm Barrel Jack NEG
• DO - Connected to ESP32 D12, D13, D14, or D27

DS3231 RTC

• 32K - Not connected
• SQW - Not connected
• SCL - Connected to ESP32 D22
• SDA - Connected to ESP32 D21
• VCC - Connected to 2.1mm Barrel Jack POS
• GND - Connected to 2.1mm Barrel Jack NEG

ACS712 Current Sensor

• 1 - Connected to Solar Panel VCC
• 2 - Connected to Solar Panel GND
• GND - Connected to 2.1mm Barrel Jack NEG
• OUT - Connected to ESP32 D35
• VCC - Connected to 2.1mm Barrel Jack POS

Voltage Sensor DC 25V

• + - Not connected
• - - Connected to 2.1mm Barrel Jack NEG
• output - Connected to ESP32 D34
• gnd - Connected to Solar Panel GND
• vcc - Connected to Solar Panel VCC

POWER SUPPLY 5V 5AMP

• 220V Positive Pole (AC) - Connected to power outlet L
• 220V Negative Pole (AC) - Connected to power outlet N
• GND - Connected to power outlet GND
• GND (DC) - Connected to Buck converter IN-
• 12V-24V Output (DC) - Connected to Buck converter IN+

Buck converter

• IN+ - Connected to POWER SUPPLY 12V-24V Output (DC)
• IN- - Connected to POWER SUPPLY GND (DC)
• OUT+ - Connected to 2.1mm Barrel Jack POS
• OUT- - Connected to 2.1mm Barrel Jack NEG

Solar Panel

• gnd - Connected to ACS712 Current Sensor 2 and Voltage Sensor DC 25V gnd
• vcc - Connected to ACS712 Current Sensor 1 and Voltage Sensor DC 25V vcc

2.1mm Barrel Jack with Terminal Block

• POS - Connected to various VCC pins of other components
• NEG - Connected to various GND pins of other components

power outlet (IL)

• N - Connected to POWER SUPPLY 220V Negative Pole (AC)
• L - Connected to POWER SUPPLY 220V Positive Pole (AC)
• GND - Connected to POWER SUPPLY GND

Documented Code

There is no code provided for the microcontroller in this circuit. The ESP32 would typically be programmed to read inputs from the sensors, control the servos, and manage time with the RTC. The code would be responsible for the logic and behavior of the circuit, including handling sensor data, making decisions, and sending control signals to the actuators. Without the code, the specific functionality of the circuit cannot be determined.