M5Stack ENV III Unit with Temperature Humidity Air Pressure Sensor

---

Product Link

M5Stack ENV III UnitOpenELAB

Introduction

ENV III is an environmental sensor that integrates SHT30 and QMP6988 internally to detect temperature, humidity, and atmospheric pressure data. SHT30 is a high-precision and low-power digital temperature and humidity sensor, and supports I2C interface (SHT30:0x44 , QMP6988:0x70).QMP6988 is an absolute air pressure sensor specially designed for mobile applications, with high accuracy and stability, suitable for environmental data collection and detection types of projects.

Features

• High Precision Sensors: Equipped with SHT30 (temperature and humidity) and BMP280 (air pressure) sensors.

• Wide Measurement Range: Accurate measurements of temperature, humidity, and air pressure across a broad range.

• I2C Communication: Utilizes I2C protocol for easy integration with M5Stack core and other microcontrollers.

• Plug-and-Play: Compatible with M5Stack core devices, enabling quick setup and deployment.

• Compact Design: Small form factor suitable for space-constrained applications.

Specifications

Resources	Parameter
Maximum temperature measurement range	-40 ~ 120 ℃
Highest measurement accuracy	0 ~ 60 ℃/±0.2℃
Humidity measurement range/error	10 ~ 90 %RH / ±2%
Maximum measured value of air pressure/resolution/error	300 ~ 1100hPa / 0.06Pa / ±3.9Pa
Communication protocol	I2C: SHT30(0x44), QMP6988(0x70)
Working temperature	32°F to 104°F (0°C to 40°C )
Net weight	5g
Gross weight	17g
Product Size	24*32*8mm
Package Size	136*92*13mm
Case Material	Plastic ( PC )

Pinout

• GND: Ground

• VCC: 3.3V/5V Power Supply

• SCL: I2C Clock

• SDA: I2C Data

Dimensions

• Length: 32mm

• Width: 24mm

• Height: 8mm

How to Use

1. Connection: Connect the ENV III Unit to the M5Stack core using a Grove cable.

2. Library Installation: Install the necessary libraries (M5Stack, Wire, Adafruit_Sensor, Adafruit_BMP280, Adafruit_SHT31).

3. Initialization: Initialize the sensors in your code using the appropriate library functions.

4. Data Reading: Use the library functions to read temperature, humidity, and air pressure data.

5. Display/Use Data: Display the data on the M5Stack screen or use it in your application logic.

FAQ

What applications can the ENV III Unit be used for?

The ENV III Unit is ideal for weather stations, HVAC systems, environmental monitoring, and smart home applications.

How do I connect the ENV III Unit to my M5Stack core?

Use a Grove cable to connect the ENV III Unit to the Grove port on the M5Stack core.

Can I use the ENV III Unit with other microcontrollers?

Yes, as long as the microcontroller supports I2C communication, you can use the ENV III Unit with it.

What is the accuracy of the sensors?

The temperature sensor has an accuracy of ±0.2°C, the humidity sensor ±2% RH, and the air pressure sensor ±1 hPa.

How do I install the necessary libraries?

Use the Arduino Library Manager to install the M5Stack, Wire, Adafruit_Sensor, Adafruit_BMP280, and Adafruit_SHT31 libraries.