ESP32_CJMCU-8128

Air Quality with CJMCU-8128 (board with CCS811 / BMP280 and SI702x)

• TVCO (Total Volatile Organic Compound)
• eCO2 (equivalent CO2)
• Humidity (measured by SI702x)
• Temperature (measured by BMP280 and SI702x)
• Pressure (measured by BMP280)

Hardware:

1. ESP32 (with I²C, 4MB and WIFI)
2. CJMCU-8128 - Sensor More information about the Core-Sensor CCS811 from AMS can be found under: https://ams.com/environmental-sensors

Software / Libraries:

• CCS881 - library from maarten-pennings https://github.com/maarten-pennings/CCS811
• BMP280 - standard library from Adafruit
• Si702x - standard library from Adafruit

Wireing:

MH-Z19b		ESP32
VCC	<->	3V3
GND	<->	GND
SDA	<->	SDA Pin 21
SCL	<->	SCL Pin 22
WAK	<->	GND

Implementation

• Code is raw without any additional features in Arduino 1.8.10
• Output on serial monitor 9600 Baud