Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an MQ-7 gas sensor, a BMP180 pressure sensor, and an ESP-8266 microcontroller. The circuit is designed to read gas concentration and atmospheric pressure data and potentially transmit this data over a network using the ESP-8266.

Component List

MQ-7 Breakout

• Description: Gas sensor for detecting carbon monoxide (CO) levels.
• Pins: VCC, GND, DO, AO

BMP180

• Description: Barometric pressure sensor.
• Pins: 3.3, SDA, SCL, GND, VCC

ESP-8266 Controller

• Description: Wi-Fi microcontroller for IoT applications.
• Pins: A0, RSV, SD3, SD5, SD1, CMD, D0, D1, D2, D3, D4, 3V3, GND, D5, D6, SD0, CLK, RST, EN, D7, D8, RX, TX, Vin, 5V

Wiring Details

MQ-7 Breakout

• VCC: Connected to Vin of ESP-8266 Controller
• GND: Connected to GND of ESP-8266 Controller
• AO: Connected to A0 of ESP-8266 Controller

BMP180

• 3.3: Connected to 3V3 of ESP-8266 Controller
• SDA: Connected to D2 of ESP-8266 Controller
• SCL: Connected to D1 of ESP-8266 Controller
• GND: Connected to GND of ESP-8266 Controller

ESP-8266 Controller

• Vin: Connected to VCC of MQ-7 Breakout
• GND: Connected to GND of MQ-7 Breakout and GND of BMP180
• A0: Connected to AO of MQ-7 Breakout
• 3V3: Connected to 3.3 of BMP180
• D2: Connected to SDA of BMP180
• D1: Connected to SCL of BMP180

Code

No code is provided for this circuit.