Circuit Documentation

Summary

This circuit is designed to monitor and display various environmental parameters using an Arduino UNO microcontroller. It includes a solar panel for power, a voltage sensor, a current sensor, a temperature and humidity sensor (DHT22), and an I2C display for output. The Arduino UNO collects data from the sensors and displays it on the I2C display.

Component List

Arduino UNO

• Description: A microcontroller board based on the ATmega328P.
• Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0, A1, A2, A3, A4, A5, SCL, SDA, AREF, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0

Solar Panel

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

Voltage Sensor DC 25V

• Description: A sensor to measure DC voltage up to 25V.
• Pins: +, -, output, gnd, vcc

ACS712 Current Sensor 5A 20A 30A

• Description: A sensor to measure current in the range of 5A, 20A, or 30A.
• Pins: 1, 2, GND, OUT, VCC

DHT22

• Description: A temperature and humidity sensor.
• Pins: GND, VCC, DAT

I2C Display

• Description: A display module that communicates via the I2C protocol.
• Pins: GND, VCC, SDL, SCL

Wiring Details

Arduino UNO

• 5V: Connected to VCC of I2C Display, Voltage Sensor DC 25V, ACS712 Current Sensor, and DHT22.
• GND: Connected to GND of I2C Display, Voltage Sensor DC 25V, ACS712 Current Sensor, and DHT22.
• A0: Connected to OUT of ACS712 Current Sensor.
• A1: Connected to output of Voltage Sensor DC 25V.
• A4: Connected to SDL of I2C Display.
• A5: Connected to SCL of I2C Display.
• D2: Connected to DAT of DHT22.

Solar Panel

• +: Connected to 1 of ACS712 Current Sensor.
• -: Connected to gnd of Voltage Sensor DC 25V.

Voltage Sensor DC 25V

• +: Connected to 5V of Arduino UNO.
• -: Connected to GND of Arduino UNO.
• output: Connected to A1 of Arduino UNO.
• gnd: Connected to - of Solar Panel.
• vcc: Connected to 2 of ACS712 Current Sensor.

ACS712 Current Sensor 5A 20A 30A

• 1: Connected to + of Solar Panel.
• 2: Connected to vcc of Voltage Sensor DC 25V.
• GND: Connected to GND of Arduino UNO.
• OUT: Connected to A0 of Arduino UNO.
• VCC: Connected to 5V of Arduino UNO.

DHT22

• GND: Connected to GND of Arduino UNO.
• VCC: Connected to 5V of Arduino UNO.
• DAT: Connected to D2 of Arduino UNO.

I2C Display

• GND: Connected to GND of Arduino UNO.
• VCC: Connected to 5V of Arduino UNO.
• SDL: Connected to A4 of Arduino UNO.
• SCL: Connected to A5 of Arduino UNO.

Documented Code

Arduino UNO Code (sketch.ino)

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

}

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

}

Additional Documentation (documentation.txt)

This documentation provides a comprehensive overview of the circuit, including a summary, detailed component list, wiring details, and the code used in the Arduino UNO microcontroller.