GY-39 Humidity and Temperature Light Intensity Module

Description:
GY-39 light intensity temperature and humidity atmospheric pressure sensor module, direct serial port output. It can be used as a simple MAX44009 or BME280 module, chip I2C communication. you can read all kinds of data on the module MCU, MCU calculation of the unified direct output of the calculation of the practical data, support for serial /i2c. you can connect the Android mobile phone or UTB to TTL module connected to the computer via Bluetooth module. 

4 in 1 weather station module (light intensity + temperature and humidity + atmospheric pressure module)

Application:
Digital lighting management
Internet of Things, smart home applications
Weather station monitoring
Digital lighting design
Digital barometer, altimeter
Thermometer
Greenhouse climate monitoring

Features:
Model: GY- 39
Working voltage: 3-5V
Working current: 5mA
Communication method: MCU_IIC/MCU_serial port/sensor chip IIC bus
Temperature measurement range: -40°-85°
Humidity measurement range: 0%-100%
Light intensity measurement range: 0.045lux-188000lux
Air pressure measurement range: 300-1100hpa
Response frequency: 10HZ
Working temperature: -40°-85°
Storage temperature: -40°-125°
Size: 24.3 x 26.7mm
Sensor chip: ME280+MAX44009

PIN Description Parameter
Pin1: VCC Power (3-5V)
Pin2: CT Serial port UART_TX/IIC_SCL
Pin3: DR Serial port UART_RX/IIC_SDA
Pin4: GND Power ground
Pin5: NC Reserved, don't connect
Pin6: INT Max44009 light intensity chip interrupt S0-1 (enabled when connected to GND)
Pin7: SDA Chip data bus S0-1 (enabled when connected to GND)
Pin8: SCL Chip clock bus S0-1 (enabled when connected to GND)
PinA: S0 Serial/MCU_IIC mode selection
PinB: S1 Use only sensor chip selection