Goes well with this
| Price | $2 |
|---|---|
| Category | Sensors |
| Availability | In stock |
| Delivery | Shipped across Lebanon, or collect from the lab |
A breakout for Bosch's BMP280 pressure and temperature sensor. It reads 300 to 1100 hPa to plus or minus 1 hPa absolute and plus or minus 0.12 hPa relative - about a metre of altitude - which is why it turns up in weather stations and drones. It speaks I2C (0x76 by default) or 4-wire SPI and sips microamps. Note this is the BMP280, not the BME280: pressure and temperature, no humidity.
Key features
- Pressure 300-1100 hPa, plus or minus 1 hPa absolute
- Relative accuracy plus or minus 0.12 hPa, about 1 m of altitude
- I2C (0x76 / 0x77) or 4-wire SPI - your choice
- About 2.7 microamps at 1 reading per second
- Pressure and temperature only - no humidity
- 3.3V board: no regulator or level shifter fitted
Details
Specifications
| Model | BMP280 (Bosch Sensortec) |
|---|---|
| Form | 6-pin breakout module (VCC, GND, SCL, SDA, CSB, SDO) |
| Measures | Barometric pressure + temperature (not humidity) |
| Pressure range | 300 to 1100 hPa |
| Absolute accuracy | plus or minus 1.0 hPa |
| Relative accuracy | plus or minus 0.12 hPa (~1 m altitude) |
| Pressure resolution | 0.01 hPa in high-resolution mode |
| Temperature accuracy | plus or minus 1.0 degrees C |
| Interface | I2C or SPI (4-wire) |
| I2C address | 0x76 default, 0x77 with SDO pulled high |
| Operating voltage | 1.71 to 3.6V (3.3V logic) |
| Current | ~2.7 microamps at 1 Hz, 0.1 microamps in sleep |
