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.