U001

ENV Unit with Temperature Humidity Pressure Sensor (DHT12+BMP280) SKU:U001 ENV is a environment sensor, can be used for temperature, humidity, and atmospheric pressure measurement. Build with DHT12 and BMP280. DHT12 is a upgradation version of DHT11 humidity temperature sensor, fully downward compatible, more precise and add I2C interface. BMP280 is an absolute barometric pressure sensor especially designed for mobile applications, offers highest flexibility to optimize the device regarding power consumption, resolution and filter performance. Product Features • • • • • Temperature: o measuring range: -20 ~ 60 ℃ o resolution: ±0.2℃ Humidity: o measuring range: 20 ~ 95 %RH o resolution: 0.1% Air pressure o measuring range: 300 ~ 1100hPa o resolution: ±1hPa Program Platform: Arduino, UIFlow(Blockly,Python) Two Lego-compatible holes Kit includes • • 1x ENV Unit 1x Grove Cable Learn Example 1. Arduino IDE This is a ENV example, implemented reading temperature, humidity and atmospheric pressure function. 1, Before compiling, please install Adafruit BMP280 Library 2, copy Adafruit_Sensor.h to C:\Users\\Documents\Arduino\libraries\Adafruit _BMP280_Library The code below is incomplete. To get the complete code, please click here. /* Install Adafruit BMP280 Library first. */ #include #include "DHT12.h" #include //The DHT12 uses I2C comunication. #include #include // new two objects DHT12 dht12; Adafruit_BMP280 bme; // initialization M5.begin(); Wire.begin(); bmp.begin(); // read data float tmp = dht12.readTemperature(); float hum = dht12.readHumidity(); float pressure = bme.readPressure(); To get the complete code, please click here. Schematic PinMap M5Core(GROVE A) GPIO22 GPIO21 5V GND ENV Unit SCL SDA 5V GND https://m5stack.com/products/mini-env-sensor-unit/12-6-19