Hardware Matrix

Is BME680 Environmental & Gas Sensor Compatible with Home Assistant (ESPHome)?

Verdict Badge
VERDICT: [ NATIVELY SUPPORTED ]
Protocol: I2C Bus / 3.3V
Bridge Needed: NO

Hardware Safety & Verification Specs

Electrical parameters & logic voltage safety limits before powering ICs

๐ŸŸข 3.3V Native Direct Hookup ๐Ÿงช Verified in Lab
Logic Voltage 3.3V Low-Power CMOS
Voltage Rating 3.0V - 3.3V DC Rail
Current Profile Peak Tx Current: ~180mA to ~250mA @ 3.3V
Environment Rating IP20 Indoor Climate Control

## Compatibility Overview

The ESP32-C3 SuperMini paired with Bosch BME680 provides accurate indoor air quality pressure and ambient humidity readings directly to Home Assistant.

Interactive Pinout & Wiring Diagram

Hover over any pin to view voltage limits and pull-up specifications

VCC
3.3V Power
GND
Ground Common
SDA / TX
Data Line (GPIO 21)
SCL / RX
Clock Line (GPIO 22)
CS / INT
Chip Select (GPIO 19)

## Technical Specification Matrix

Feature / Attribute Specification / Status
Hardware Protocol I2C Bus / 3.3V
Bridge Required NO
Border Router Needed None
Exposed Entities
Temperature Relative Humidity Barometric Pressure IAQ Gas Index
Pairing Complexity Intermediate
Factory Reset Instruction Short GPIO9 to GND during power-on to trigger bootloader mode.

## Step-by-Step Pairing Guide

1

Factory Reset Device

Short GPIO9 to GND during power-on to trigger bootloader mode.

2

Initialize Pairing Mode on Home Assistant (ESPHome)

Open Home Assistant (ESPHome) administration console, navigate to Integrations / Add Device, and start pairing scanner.

3

Confirm Entity Binding & State Verification

Verify that primary entities (Temperature, Relative Humidity, Barometric Pressure, IAQ Gas Index) report live state changes inside Home Assistant (ESPHome).

Production Code Generator & Preset Toolkit

Pre-configured pinouts & drivers for BME680 Environmental & Gas Sensor

Test in Wokwi Simulator โ†—
   
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Report a Pinout Error or Submit Tested Code Snippets

Found a pin mapping quirk or built a custom ESPHome YAML driver for BME680 Environmental & Gas Sensor? Help us keep this matrix 100% accurate.

## Frequently Asked Questions

Does this device operate in Offline Mode?
Fully local execution via ESPHome native API over Wi-Fi.
What is the expected Battery Life & Power specification?
USB-C 5V input with onboard 3.3V LDO regulator; I2C SDA=GPIO8 SCL=GPIO9.
How does Signal Mesh & Range Extension function?
Wi-Fi 802.11b/g/n 2.4GHz local mesh.

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