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Wi-Fi Controlled Smart Home Environment Monitor with ESP8266, BMP280, and DHT11

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Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes a BMP280 sensor, a DHT11 sensor, an ESP8266 microcontroller, a 5V relay, a bulb, and an AC supply. The circuit is designed to interface environmental sensors with a microcontroller and control a bulb through a relay.

Component List

  1. BMP280

    • Description: Barometric pressure and temperature sensor.
    • Pins: SDO, CSB, SDA, SCL, GND, VCC

  2. DHT11

    • Description: Temperature and humidity sensor.
    • Pins: VCC, GND, DATA

  3. ESP8266

    • Description: Wi-Fi microcontroller.
    • Pins: 3V, G, D8, D7, D6, D5, D4, D3, D2, D1, D0, A0, S3, S2, S1, SC, S0, SK, EN, VIN, RST, VU

  4. 5V Relay

    • Description: Relay module for switching high voltage devices.
    • Pins: Normally Open, Common terminal, Normally Closed, In, GND, VCC

  5. Bulb

    • Description: Standard light bulb.
    • Pins: +, -

  6. AC Supply

    • Description: AC power supply.
    • Pins: +ve, -ve

Wiring Details

BMP280

DHT11

ESP8266

5V Relay

Bulb

AC Supply

Code

No code is provided for this circuit.

This document provides a comprehensive overview of the circuit, including a summary, component list, wiring details, and code section. Each component is described, and its connections are detailed to ensure clarity and ease of understanding.