M5Stack Barometric Pressure Unit (BMP280) [discontinued]

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

LEARN AND DOCUMENTS

DOCUMENTS