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 displays it on the LCD. The circuit is powered through the ESP32's Vin pin.

Component List

1. 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

2. DHT11

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

3. 16x2 I2C LCD

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

4. Comment

   • Description: Placeholder for comments in the circuit design.
   • Pins: None

Wiring Details

ESP32 (30 pin)

• GND is connected to:

  • GND of 16x2 I2C LCD
  • GND of DHT11

• Vin is connected to:

  • VCC of DHT11
  • VCC of 16x2 I2C LCD

• D22 is connected to:

  • SCL of 16x2 I2C LCD

• D21 is connected to:

  • SDA of 16x2 I2C LCD

• D4 is connected to:

  • DATA of DHT11

DHT11

• DATA is connected to:

  • D4 of ESP32

• GND is connected to:

  • GND of ESP32

• VCC is connected to:

  • Vin of ESP32

16x2 I2C LCD

• GND is connected to:

  • GND of ESP32

• VCC is connected to:

  • Vin of ESP32

• SDA is connected to:

  • D21 of ESP32

• SCL is connected to:

  • D22 of ESP32

Code

No code is provided for this circuit.