Difference between revisions of "CJMCU-811"
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== Introduction == | == Introduction == | ||
− | I bought this | + | I bought this board from Aliexpress, it's a breakout board for [https://ams.com/ccs811 the AMS CCS-811]. |
+ | The CCS-811 is an ultra-low power digital gas sensor for monitoring indoor air quality. | ||
− | The | + | The datasheet can be found [https://ams.com/ccs811#tab/documents here]. |
− | Pins: | + | == Hardware == |
− | * VCC connect this to 3.3V | + | Pins on the breakout board: |
+ | * VCC this is directly connected to the IC (there is no voltage regulator on board), connect this to 3.3V | ||
* GND to ground obviously | * GND to ground obviously | ||
− | * SCL | + | * SCL signal from I2C |
− | * SDA | + | * SDA signal from I2C |
* WAK this needs to be low (!) in order for the chip to be active | * WAK this needs to be low (!) in order for the chip to be active | ||
* INT can be left unconnected | * INT can be left unconnected | ||
* RST can be left unconnected | * RST can be left unconnected | ||
− | * ADD can be left unconnected | + | * ADD can be left unconnected (?) |
My board was apparently configured at I2C address 0x5A. | My board was apparently configured at I2C address 0x5A. | ||
+ | I'm wiring it up to a Wemos D1 mini board with an ESP8266. | ||
+ | |||
+ | == Software == | ||
+ | I found two libraries: | ||
+ | * [https://github.com/adafruit/Adafruit_CCS811 Adafruit CCS811 Library] | ||
+ | * [https://github.com/sparkfun/SparkFun_CCS811_Arduino_Library SparkFun CCS811 Arduino Library] |
Revision as of 10:37, 30 December 2018
Project CJMCU-811 | |
---|---|
Playing around with a breakout board for the CSS-811 IC | |
Status | Initializing |
Contact | bertrik |
Last Update | 2018-12-30 |
Introduction
I bought this board from Aliexpress, it's a breakout board for the AMS CCS-811. The CCS-811 is an ultra-low power digital gas sensor for monitoring indoor air quality.
The datasheet can be found here.
Hardware
Pins on the breakout board:
- VCC this is directly connected to the IC (there is no voltage regulator on board), connect this to 3.3V
- GND to ground obviously
- SCL signal from I2C
- SDA signal from I2C
- WAK this needs to be low (!) in order for the chip to be active
- INT can be left unconnected
- RST can be left unconnected
- ADD can be left unconnected (?)
My board was apparently configured at I2C address 0x5A. I'm wiring it up to a Wemos D1 mini board with an ESP8266.
Software
I found two libraries: