Circuit Documentation

Summary

This document provides a detailed overview of a simple circuit that integrates an Arduino UNO R4 WiFi with a DHT11 temperature and humidity sensor. The Arduino serves as the central processing unit, capable of WiFi communication, and the DHT11 sensor provides environmental data. The circuit is designed to read temperature and humidity data from the DHT11 sensor and process it using the Arduino.

Component List

Arduino UNO R4 WiFi

• Description: A microcontroller board based on the ATmega328, with integrated WiFi capabilities.
• Pins: OFF, GND, VRTC, IIC0_SCL, IIC0_SDA, 3V3, GPIO 41, GPIO 0, GPIO 42, GPIO 43, GPIO 44, BOOT, IOREF, RESET, 5V, VIN, A0, A1, A2, A3, A4, A5, RSPCKA, CIPO, COPI, D0/RX, D1/TX, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, AREF, SDA, SCL
• Purpose: Acts as the main controller and WiFi communication interface for the circuit.

DHT11

• Description: A basic, ultra low-cost digital temperature and humidity sensor.
• Pins: DATA, GND, VCC
• Purpose: Measures the ambient temperature and humidity.

Wiring Details

Arduino UNO R4 WiFi

• GND: Connected to the GND pin of the DHT11 sensor to establish a common ground.
• D2: Connected to the DATA pin of the DHT11 sensor for data communication.
• 5V: Provides power to the VCC pin of the DHT11 sensor.

DHT11

• DATA: Connected to the D2 pin of the Arduino UNO R4 WiFi for data communication.
• GND: Connected to the GND pin of the Arduino UNO R4 WiFi to establish a common ground.
• VCC: Powered by the 5V pin of the Arduino UNO R4 WiFi.

Documented Code

Arduino UNO R4 WiFi Code (sketch.ino)

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

}

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

}

This code template provides the basic structure for an Arduino sketch, with setup() and loop() functions defined. The setup() function is intended for initialization code that runs once when the device is powered on or reset. The loop() function contains the main logic of the sketch, which runs continuously as long as the device is powered.

Additional Notes

• The provided code is a template and does not include specific instructions for interacting with the DHT11 sensor. To complete the circuit functionality, code for initializing the DHT11 sensor and reading data from it should be added to the setup() and loop() functions, respectively.
• The documentation.txt file is empty and thus not included in this document. It is assumed to be a placeholder for additional documentation or notes that may be added later.