Circuit Documentation

Summary

This circuit involves an ESP32 microcontroller interfacing with a DHT11 temperature and humidity sensor and a 16x2 I2C LCD display. The ESP32 reads data from the DHT11 sensor and can display information on the LCD.

Component List

ESP32 (30 pin)

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

DHT11

• Description: A basic, low-cost digital temperature and humidity sensor.
• Pins: DATA, GND, VCC

16x2 I2C LCD

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

Wiring Details

ESP32 (30 pin) Connections

• D14 connected to DHT11 DATA
• GND connected to 16x2 I2C LCD GND
• Vin connected to 16x2 I2C LCD VCC
• D22 connected to 16x2 I2C LCD SCL
• D21 connected to 16x2 I2C LCD SDA
• GND connected to DHT11 GND
• 3V3 connected to DHT11 VCC

DHT11 Connections

• DATA connected to ESP32 D14
• GND connected to ESP32 GND
• VCC connected to ESP32 3V3

16x2 I2C LCD Connections

• GND connected to ESP32 GND
• VCC connected to ESP32 Vin
• SDA connected to ESP32 D21
• SCL connected to ESP32 D22

Code Documentation

sketch.ino

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

}

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

}

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 microcontroller.