产品概览
The BMP280 from Bosch Sensortec (distributed by ROHM) is a digital barometric pressure sensor that can also measure temperature. With a pressure accuracy of +/-1hPa and low power consumption of 2.7uA at 1Hz, it is ideal for altitude tracking and weather monitoring in a compact 2.0×2.5mm LGA package.
主要规格
| Pressure Range | 300 to 1100hPa |
| Pressure Accuracy | +/-1hPa (at 25C, 950-1050hPa) |
| Temperature Accuracy | +/-1.0C (at 25C) |
| Resolution | 0.01hPa (pressure), 0.01C (temp) |
| Interface | I2C (up to 3.4MHz) + SPI (up to 10MHz) |
| 电源电压 | 1.71V to 3.6V |
| Current (1Hz) | 2.7uA (ultra-low power mode) |
| 包装 | LGA-8 (2.5×2.0x0.95mm) |
| 工作温度 | -40 to +85 C |
特点
- High-precision barometric pressure measurement
- Ultra-low power: 2.7uA at 1Hz in ultra-low power mode
- Dual interface: I2C and SPI
- Multiple power modes: sleep, forced, normal
- On-chip temperature compensation
- Pin-compatible with BME280 (humidity variant)
应用
- Altitude measurement and navigation
- Weather forecasting and meteorology
- Indoor navigation and floor detection
- Drone altitude hold