SPECIFICATIONS

Gy-mcu680v1 bme680 temperature humidity air pressure indoor air quality IAQ sensor module
GY-MCU681_ 01 sgp40 temperature humidity air pressure indoor air quality IAQ sensor module

Gymcu680 is a low-cost air detection module with 3-5v working voltage, low power consumption and small volume.
Its working principle is to read the data of bme680 sensor through MCU and get the temperature, humidity, atmospheric pressure, IAQ, indoor air quality and resistance value through algorithm.
This module has two ways to read data, namely
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Serial port (TTL level) or IIC of chip itself
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Communication mode. The product has high precision and high stability.
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It can output practical data directly and omit the algorithm.
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The baud rate of serial port is 9600bps and 115200bps
There are two ways of continuous output and inquiry output, which can adapt to different working environment.
Connect with all single chip microcomputer and computer
When the PS solder joint is soldered, the module is in IIC mode of the chip itself, and the MCU does not participate in the work and does not consume current. It can be used as a simple bme680 module.
IAQ indoor air quality algorithm is transplanted according to the routine of bme680 chip's official website. When testing, it takes a certain time, about 5 minutes, for the data to be normal.

Temperature measurement range: - 40 ° to 85 °
Humidity measurement range: 0% ~ 100%
IAQ measurement range: 0 ~ 500
Pressure measurement range: 300 ~ 1100hpa
Response frequency: Black default 3 seconds each time
Working voltage: 3 ~ 5 V
Average working current: 5mA
Working temperature: - 40 ° to 85 °
Storage temperature: - 40 ° to 125 ° C
Size: 12mm x 30mm
Chip used: me680+stm32