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描述
描述
Fermion: BMP390L 數位氣壓感測器模組 (Breakout) DFrobot 進口 一款穩定性高漂移小低噪低功耗的高精度工業級大氣壓感測器
Fermion: BMP390L 數位氣壓感測器模組 是一款博世新研發的工業級專用數字氣壓傳感器,具有極高的溫度穩定性、低漂移、低功耗(睡眠電流僅54uA,最高功耗測量模式為650uA)和低噪聲影響(低於0.02Pa)的特性。該產品絕對精度最大誤差低於50Pa,相對精度可達±3Pa(相當於25cm),相比前代提升了166.7%,保證了測量的精準度。此外,新款在長期穩定性表現上也遠超前代的表現,12個月的長期穩定性誤差僅為16Pa。精準穩定低功耗的高度檢測使得該產品十分適合用於GPS信號無法覆蓋的室內定位等應用中,且該產品供貨期長達十年,因此可以放心集成到您的設備中。
特性
- 高精度(絕對誤差<50 Pa,相對誤差<3 Pa)
- 長期穩定性高(±16 Pa/年)
- 極高的溫度穩定性和低漂移性
- 超低的工作功耗(<650uA)
應用場景
- 垂直速度指示(如上升/下沉速度)
- 物聯網(IoT)
- GPS 導航增強(例如改進初次定位時間、航位推算、斜率檢測)
- 室內導航和定位(室內檢測、電梯檢測)
- 戶外導航,休閒和運動應用
- 天氣預報
- 健康保健應用(如肺活量測定)
- 健身應用(如增強熱量檢測)
- 增強現實和虛擬現實應用
- 情境感知
技術規格
- 工作電壓:3.3V
- 工作電流:睡眠模式(54uA)/正常模式(357~650uA)
- 接口方式:I2C/SPI
- I2C地址:0x77(默認地址)/0x76(可選:SDO引腳連接GND)
- 壓力感應範圍:300~1250 hPa
- 相對精度:±0.03hPa(相當於25cm)(@700-1100hPa,25-40°C)
- 絕對精度:±0.50hPa
- 溫度偏移係數:±0.6Pa/K(@900hPa,25-40°C)
- 長期穩定性:±0.16hPa/年
- ODR精度:±2%~±12%
- 啟動時間:2ms
- 工作溫度範圍:-40℃ ~ +85℃(在0℃~+65℃下可使用全精度測量)
- 模塊尺寸:15*20(mm)
引腳說明
序號 | 絲印 | 功能描述 |
---|---|---|
1 | 電壓互感器 | 3.3V~5.5V電源輸入 |
2 | 3V3 | 3.3V電源輸出/輸入 |
3 | 地線 | 電源負極 |
4 | SCL | I2C時鐘線 |
5 | SDA | I2C數據線 |
6 | SCK | SPI時鐘控制線 |
7 | SDI | SPI數據線(輸入) |
8 | SDO | SPI數據線(輸出) |
9 | CS | SPI 片選線 |
10 | 情報局 | 中斷引腳 |
注意:
- 僅支持3.3V主板
- 所有數據輸出電壓均為3.3V
- 將SDO引腳拉低可切換I2C地址為:0x77
不同通信方式連線提示:
– I2C:0x77(默認)
– I2C:0x76
– SPI
注意:cs引腳可自行選擇不衝突的引腳
– 中斷引腳連接
主板 | 默認連接引腳 |
---|---|
UNO / MEGA2560 | D2 |
萊昂納多 | D3 |
微:位 | P0 |
ESP32/ESP8266/ARDUINO_SAM_ZERO(M0) | D6 |
Raspberry Pi | GPIO25 |
相關文檔
INTRODUCTION
BMP390L is an industrial-grade dedicated digital barometric pressure sensor newly developed by Bosch. It has extremely high temperature stability, low drift, low power consumption (sleep current is only 54μA, the highest power consumption in measurement mode is 650μA) and low noise impact (less than 0.02Pa).
The maximum deviation of the absolute accuracy of this product is less than 50Pa, and the relative accuracy can reach ±3Pa (equivalent to 25cm), which is 166.7% higher than the previous generation.
In addition, with a 12-month long-term stability deviation of only 16Pa, the new model’s long-term stability performance far exceeds that of the previous generation. Accurate, stable, low-power height detection makes this product very suitable for indoor positioning applications that cannot be covered by GPS signals.
Since it offers extended availability up to 10 years, you can use this product with peace of mind.
Connection Diagram
FEATURES
- High precision (absolute deviation <50Pa, relative accuracy <3Pa)
- High long-term stability (±16Pa/year)
- Extremely high temperature stability and low drift characteristics
- Low power consumption (sleep current: 54uA, working current <650uA)
APPLICATIONS
- Asset tracking & navigation(floor detection)
- Water-level measurement
- Vertical velocity indication(e.g. rise/sink speed)
- Enhancement of GPS navigation
- Outdoor navigation & applications
- Health care applications(e.g. spirometry)
- AR & VR applications
- Context awareness
- Flight stabilization
- Clogging detection
SPECIFICATION
- Working Voltage: 3.3V
- Working Current: sleep mode (54uA) / normal mode (357~650uA)
- Interface Mode: I2C/SPI
- I2C Address: 0x77 (default address)/0x76 (optional: SDO pin connects to GND)
- Pressure Sensing Range: 300~1250 hPa
- Relative Accuracy: ±0.03hPa (equivalent to 25cm) (@700-1100hPa, 25-40°C)
- Absolute Accuracy: ±0.50hPa
- Temperature Deviation Coefficient: ±0.6Pa/K (@900hPa, 25-40°C)
- Long-term Stability: ±0.16hPa/year
- ODR Accuracy: ±2~±12%
- Start-up Time: 2ms
- Operating Temperature Range: -40℃~+85℃ (Full precision measurement can be used under 0℃~+65℃)
- Module Size: 15*20 (mm) / 0.59*0.79 (inch)
DOCUMENTS
SHIPPING LIST
- Fermion: BMP390L Digital Barometric Pressure Sensor (Breakout) x1
- 2.54-7P Black Single-row Pin Header x1
- 2.54-4P Black Single-row Pin Header x1
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