5.2 KiB
Barometric Pressure Unit {docsify-ignore-all}
SKU:U090
Description
Barometric Pressure Unit is a barometer unit, which integrates the Bosch BMP280 pressure sensor to measure atmospheric pressure and estimate the altitude. The relative accuracy can reach ± 0.12hpa, equivalent to ± 1m height difference. At the same time, the temperature drift coefficient is very low, which can reach 1.5 PA / K, that is, the temperature drift is 12.6 cm / K. in addition, there is an integrated temperature sensor in the chip.
Product Features
- Air pressure sensor, with temperature sensor on chip, can be measure simultaneously
- The accuracy is ± 0.12hpa
- Temperature drift coefficiency 1.5pa/k
- Supports periodic measurement
- Integrated 5-segment filter
- Support low power consumption
- Development platform: Arduino, UIFlow (Blockly, Python)
- 2x LEGO™ compatible holes
Include
- 1x Barometric Pressure Unit
- 1x Grove Cable (5cm)
Application
- height detector
- Weather station
Specification
-| Resources | Parameter |
| Air pressure measurement range | 300 - 1100 hPa(+9000m ~ -500m) |
| Relative accuracy | 0.12hPa |
| Absolute accuracy | 1hPa |
| Temperature measurement range | -40 ~ +85°C |
| Temperature resolution | 0.01°C |
| Pressure resolution | 0.16Pa |
| Temperature coefficient offset | 1.5 Pa/K(12.6 cm/K) |
| Current consumption | 2.7μA @ 1 Hz sampling rate |
| Voltage | 1.71V - 3.6V |
| Communication protocol | I2C：0x76 |
| Net Weight | 8g |
| Gross Weight | 21g |
| Produce Size | 24*24*13mm |
| Package Size | 35*36*18mm |
EasyLoader
EasyLoader is a precise and fast program writer, which has a built-in case program related to the product. It can be burned to the main control by simple steps to perform a series of function verification. Please install the corresponding driver according to the device type. M5Core host Please click here to view the CP210X driver installation tutorial, M5StickC/V/T/ATOM series can be used without driver)
Related Links
- Datasheet
Schematic
Pin Map
| M5Core(GROVE A) | SCL | SDA | 5V | GND |
| BMP Unit | GPIO22 | GPIO21 | 5V | GND |
Example
1. Arduino
2. UIFlow
Last updated: 2020-12-11
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