GY-39 light intensity temperature and humidity atmospheric pressure sensor module, direct serial port output 1, can be used as a simple MAX44009 or BME280 module, chip I2C communication 2, 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 3, you can connect the Android mobile phone or UTB to TTL module connected to the computer via bluetooth module, Data analysis of computer software Name: 4 in 1 weather station module(light intensity + temperature and humidity + atmospheric pressure module) Model: GY-39 Using chip: MAX44009+BME280+MCU Power supply: 3-5v Module size: 24.3*26.7mm Communication mode:MCU_IIC/MCU_Serial / sensor chip IIC bus
Introduction:
GY-39 is a low cost, air pressure, temperature and humidity, light intensity sensor module. The working voltage is 3-5V. The power consumption is small, and the installation is convenient. The working principle is that the MCU collects various sensor data, performs unified processing, and directly outputs the calculated result. This module has two ways to read data, namely serial UART (TTL level) or IIC (2 line). The baud rate of the serial port is 9600bps and 115200bps, configurable, continuous, and two output modes are requested, and the settings can be saved after power down. It can adapt to different working environments, and connect with single-chip computer and computer. The module can also set a separate sensor chip operating mode. As a separate sensor module, the MCU does not participate in data processing. Provide , 51, stm32 MCU communication program, does not provide schematic and internal MCU source code. This GY39 module also gives Android mobile phone software app to view data, and supports wifi LAN connection, mobile phone and computer display data at the same time.
Features:
1. High cost performance 2. Built-in MCU to calculate sensor data 3. IIC, serial communication format 4. Unified data output 5. With the corresponding PC software
Application:
1. Digital lighting management 2. Internet of Things, smart home applications 3. Weather station monitoring 4. Digital lighting design 5. Digital barometer, altimeter 6. Thermometer 7. Greenhouse climate monitoring
Name
Parameter
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 voltage
3-5V
Working current
5mA
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
(1) PinA (S0) hardware selects the working mode, Pin2 (CT) and Pin3 (DR) is the GY-39 module communication interface
S0=1 (default)
Serial UART mode, Pin2 is TX, Pin3 is RX, TTL level
S0=0 (when connected to GND)
MCU_IIC mode, Pin2 is SCL, Pin3 is SDA
(2) PinB (S1) uses only the sensor chip ME280+MAX44009 mode to select whether the MCU participates in data processing
S1=1 (default)
MCU+ chip mode, Pin7, Pin8, please do not have any connection
S1=0 (when connected to GND)
Chip mode only, Pin7 is the chip SCL bus, Pin8 is the chip SDA bus
Package Included:
1 x GY-39 humidity atmospheric pressure sensor module
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