Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an ESP32 microcontroller, various sensors (voltage, current, and light), LEDs, a piezo buzzer, an LCD screen, and a 240V power source. The circuit is designed to monitor and display various parameters, and it includes code for the ESP32 microcontroller.

Component List

ESP32

• Description: A powerful microcontroller with Wi-Fi and Bluetooth capabilities.
• Pins: EN, VP, VN, D34, D35, D32, D33, D25, D26, D27, D14, D12, D13, GND, VIN, 3V3, D15, D2, D4, RX2, TX2, D5, D18, D19, D21, RX0, TX0, D22, D23, BOOT

Voltage Sensor

• Description: A sensor used to measure voltage levels.
• Pins: Ground, Phase, Vcc, Out, Gnd

Current Sensor 5A

• Description: A sensor used to measure current up to 5A.
• Pins: 1, 2, GND, OUT, VCC

LED: Two Pin (green)

• Description: A green LED with two pins.
• Pins: cathode, anode

LED: Two Pin (red)

• Description: A red LED with two pins.
• Pins: cathode, anode

Resistor (200 Ohms)

• Description: A resistor with a resistance of 200 Ohms.
• Pins: pin1, pin2

Piezo Buzzer

• Description: A piezoelectric buzzer used for sound output.
• Pins: pin 1, pin 2

LDR

• Description: A light-dependent resistor used to measure light intensity.
• Pins: A0, D0, GND, VCC

LCD screen 16x2 I2C

• Description: A 16x2 character LCD screen with I2C interface.
• Pins: SCL, SDA, VCC, GND

240V Power Source

• Description: A power source providing 240V AC.
• Pins: Live, Neutral

Wiring Details

ESP32

• GND is connected to:

  • Piezo Buzzer pin 2
  • LED (green) cathode
  • LED (red) cathode
  • Current Sensor 5A GND
  • Voltage Sensor Gnd
  • LDR GND
  • LCD screen 16x2 I2C GND

• D27 is connected to Piezo Buzzer pin 1

• D25 is connected to Resistor pin2

• D26 is connected to Resistor pin2

• 3V3 is connected to:

  • LDR VCC
  • LCD screen 16x2 I2C VCC
  • Current Sensor 5A VCC
  • Voltage Sensor Vcc

• VP is connected to Voltage Sensor Out

• VN is connected to Current Sensor 5A OUT

• D32 is connected to LDR A0

• D2 is connected to LDR D0

• D21 is connected to LCD screen 16x2 I2C SDA

• D22 is connected to LCD screen 16x2 I2C SCL

Voltage Sensor

• Ground is connected to 240V Power Source Neutral
• Phase is connected to 240V Power Source Live
• Vcc is connected to ESP32 3V3
• Out is connected to ESP32 VP
• Gnd is connected to ESP32 GND

Current Sensor 5A

• 1 is connected to 240V Power Source Neutral
• 2 is connected to 240V Power Source Live
• GND is connected to ESP32 GND
• OUT is connected to ESP32 VN
• VCC is connected to ESP32 3V3

LED: Two Pin (green)

• cathode is connected to ESP32 GND
• anode is connected to Resistor pin1

LED: Two Pin (red)

• cathode is connected to ESP32 GND
• anode is connected to Resistor pin1

Resistor (200 Ohms)

• pin1 is connected to LED (green) anode
• pin2 is connected to ESP32 D25

Resistor (200 Ohms)

• pin1 is connected to LED (red) anode
• pin2 is connected to ESP32 D26

Piezo Buzzer

• pin 1 is connected to ESP32 D27
• pin 2 is connected to ESP32 GND

LDR

• A0 is connected to ESP32 D32
• D0 is connected to ESP32 D2
• GND is connected to ESP32 GND
• VCC is connected to ESP32 3V3

LCD screen 16x2 I2C

• SCL is connected to ESP32 D22
• SDA is connected to ESP32 D21
• VCC is connected to ESP32 3V3
• GND is connected to ESP32 GND

240V Power Source

• Live is connected to:

  • Voltage Sensor Phase
  • Current Sensor 5A 2

• Neutral is connected to:

  • Voltage Sensor Ground
  • Current Sensor 5A 1

Documented Code

ESP32 Code (sketch.ino)

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

Documentation (documentation.txt)

This document provides a comprehensive overview of the circuit, including a summary, component list, wiring details, and documented code.