- Description
Details
BME280 Environmental Sensor, Temperature, Humidity, Barometric Pressure
Overview
A tiny sensor breakout with BME280 onboard, sensing environmental temperature, humidity, and barometric pressure. It supports both I2C and SPI interfaces, also is compatible with 3.3V/5V voltage levels.
Due to its ultra small form factor, low power consumption, high precision with stability, the BME280 Environmental Sensor is suited for applications such as environment monitoring, weather forecast, altimeter, and IoT projects, and so on.
Features
- Supports I2C (default), configurable slave address
- Supports SPI, switch to SPI via I/O setting
- Onboard voltage level translator, compatible with 3.3V/5V operating voltage
- Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32)
Specifications
- Operating voltage: 3.3V/5V
- Communication interface: I2C/SPI
- Temperature sensing: -40~85°C (resolution 0.01°C, accuracy ±1°C)
- Humidity sensing: 0~100%RH (resolution 0.008%RH, accuracy ±3%RH, response time 1s, delay ≤2%RH)
- Barometric pressure sensing: 300~1100 hPa (resolution 0.18Pa, accuracy ±1hPa)
- Power consumption: <0.1mA@1Hz (H,P,T)
- Dimension: 27mm x 20mm
- Mounting hole size: 2.0mm
Pinouts
| PIN | I2C | SPI |
|---|---|---|
| VCC | 3.3V/5V power supply | |
| GND | Ground | |
| SDA/MOSI | I2C data | SPI data master output/slave input |
| SCL/SCK | I2C clock | SPI clock input |
| ADDR/MISO | I2C address chip selection, high level (default) address: 0x77; low level address: 0x76 |
SPI data master input/slave output |
| CS | NC | SPI chip selection, low active |
Dimensions
Sensor Parameters Comparison
| Model | BME280 | BME680 | BME688 | |
|---|---|---|---|---|
| Detection Support | Barometric pressure, Environmental temperature, Relative humidity | Barometric pressure, Environmental temperature, Relative humidity, VOC gas change detection (supports IAQ calculation in combination with the software package) | Barometric pressure, Environmental temperature, Relative humidity, VOC and VSC gas change detection (supports IAQ calculation in combination with the software package, and integrated AI function) | |
| Communication interfaces | I2C and SPI | |||
| Temperature sensing | range | -40~85°C | ||
| accuracy | ±1.0℃ (0~65℃) | ±0.5℃ (0~65℃) | ||
| Humidity sensing | range | 0~100%RH | ||
| accuracy | ±3%RH | |||
| Barometric pressure sensing | range | 300~1100 hPa | ||
| accuracy | ±1.0hPa (0~65℃) | ±0.6hPa (0~65℃) | ||
| Gas sensing | - | supports VOC gas change detection | supports VOC and VSC gas change detection | |
| Dimensions | 27 × 20mm | |||
Development Resources
Weight: 0.008 kg
Quick Overview
- BME280 Environmental Sensor x1
- PH2.0 6PIN wire 20cm x1
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