CCS811 carbon dioxide CO2 ECO2 TVOC air quality detection gas sensor module

Link: https://pan.baidu.com/s/13qhwlmd1cffi-tysixzfuw? Pwd = 1234

Extract code: 1234

Product introduction

CJMCU-811 is an ultra-low-power digital gas sensor. It integrates the CCS801 sensor and 8-bit MCU (with a modular converter (ADC)). It is used to detect the air quality in the room, including carbon dioxide (CO2) and extensiveVolatile organic compound gas (VOCS), the ultra -low power consumption characteristics of the product can be used to take you to eat work equipment, high sensitivity, intelligent algorithm calculation of the TVOC/EC02 value and output 120 signals can directly communicate with the single -chip microcomputer.

The main features of the module: Metal oxides (MOX) sensors that detect air quality indoor air quality, integrated 8 -bit MCU for the first -level algorithm of calculation, integrated 12 -bit ADC for sensor reading and digital conversion.Reset/interrupt control of the main control system.

Working voltage: 1.8 ~ 3.6V (Recommended 3.3V)

Recommended work temperature: -5 ℃ ~+50 ℃

Storage temperature: -40 ℃ ~+125 ℃

Equivalent CO2 (ECO2) inspection

Scope of measurement: 400ppm ~ 5000ppm

Communication interface: 12C interface

The frequency of supported 12C bus: 10kHz ~ 400kHz (recommended 100kHz)

VCC: Power supply

Gnd: ground

SCL: 12C serial clock line

SDA: 12C serial data cable

Wak: The low level is effective.

INT: Low -level is effective, CCS811 chip internal program can be grounded after running and flying

RST: Low level is effective, the module is pulled by default to VDD

ADD: Single address Selecting bit allows selection of backup sites

When the 12C address is low, the 7 -digit device address is 0x5A. When the 12C address is high, the 7 -digit device address is 0x5B