Unit ENV-II
Description
ENV II is an environmental sensor which can sense temperature, humidity and atmospheric pressure. It integrates the SHT30 and BMP280 sensors and is programmed over the I2C protocol(SHT30:0x44, BMP280:0x76).
SHT30 is a digital temperature and humidity sensor with high precision and low power consumption.
BMP280 is an absolute barometric pressure sensor which is especially designed for mobile applications. It offers the highest flexibility to optimize the device regarding power consumption, resolution and filter performance.
Features
Includes
- 1x ENV II Unit
- 1x Grove Cable
Specifications
| Specifications | Parameter |
|---|---|
| Max temperature measuring range | -40 ~ 120 ℃ |
| Typical temperature tolerance | 0 ~ 60 ℃/±0.2℃ |
| Humidity measuring range | 10 ~ 90 %RH / ±2% |
| Air pressure measuring range | 300 ~ 1100hPa / ±1hPa |
| Communication protocol | I2C:SHT30(0x44),BMP280(0x76) |
| Operating temperature range | 0°C to 60°C |
| Net weight | 5g |
| Gross weight | 17g |
| Product Size | 24.2*32.2*8.1mm |
| Package Size | 67*53*12mm |
| Case material | Plastic ( PC ) |
Comparison between SHT30 and DHT12
| / | SHT30 | DHT12 |
|---|---|---|
| Max temperature measuring range | -40 ~ 120 ℃ | -20 ~ 60 ℃ |
| Typical temperature resolution | 0 ~ 60 ℃/±0.2℃ | ±0.2℃ |
| Humidity measuring range/resolution | 10 ~ 90 %RH / ±2% | 20 ~ 95 %RH/0.1% |
EasyLoader
EasyLoader is a concise 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.
Display temperature, humidity and atmospheric pressure data.
PinMap
| M5Core(GROVE A) | GPIO22 | GPIO21 | 5V | GND |
|---|---|---|---|---|
| ENV II Unit | SCL | SDA | 5V | GND |
Schematic
Related Link
Example
This case uses ENVII Unit to read temperature, humidity, and atmospheric pressure data. Please select the corresponding case program below according to the equipment you are using.
- M5Unit-ENV II with M5Atom
- M5Unit-ENV II with M5AtomS3
- M5Unit-ENV II with M5AtomS3Lite
- M5Unit-ENV II with M5Core
- M5Unit-ENV II with M5Core2
- M5Unit-ENV II with M5StickC
- M5Unit-ENV II with M5StickCPlus
SHT3X.h - API
//
float cTemp=0;
float fTemp=0;
float humidity=0
Adafruit_BMP280.h - API
float readPressure(void);
UIFlow
ENV version scheme comparison
| ENV I | ENV II | ENV III | ENV IV | ENV PRO |
|---|---|---|---|---|
| DHT12+BMP280 | SHT30+BMP280 | SHT30+QMP6988 | SHT40+BMP280 | BME688 |