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Product Descriptions

GY-39 is a low-cost sensor module for air pressure, temperature and humidity, and light intensity. The working voltage is 3-5V, with low power consumption and easy installation. Its working principle is that the MCU collects various sensor data, processes it uniformly, and directly outputs the calculated results. This module has two ways to read data, namely serial UART (TTL level) or IIC (2-wire). The baud rates of the serial port are 9600bps and 115200bps, configurable, with two options: continuous and inquiry output. The settings can be saved in case of power failure. Can adapt to different working environments and connect with microcontrollers and computers. The module can also set a separate sensor chip working mode, as a simple sensor module, the MCU does not participate in data processing work. Provide communication programs for Arduino, 5L, STM32 microcontrollers, but do not provide principles or internal microcontroller source code. This GY39 module also comes with an Android mobile app for viewing data, and supports WiFi LAN connection to both mobile phones and computers for displaying data simultaneously.

Product Features

Name: 4-in-1 Meteorological Station Module (Light Intensity+Temperature and Humidity+Atmospheric Pressure Module)

Model: GY-39

Power supply: 3-5V

Module size: 24.3 * 26.7mm

Communication method: MCU_SIC/MCU_Sort/Sensor chip IIC bus

1. Various data can be read by the MCU on the module, and the MCU can directly output the calculated practical data after calculation, supporting serial port/I2C

2. It can be connected to an Android phone or a UTB to TTL module via Bluetooth, and the computer software can save and analyze the data

Product Functions

USB to TTL connection:

ARDONO PRO iic connection:

ARDONO PRO MINI serial port connection:

When the module is connected separately to a computer, a USB to TTL module is required. When the module is connected separately to a mobile phone, a Bluetooth module is required

Android mobile app displays:

Equipped with upper computer software:

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