Commit Graph

4 Commits

Author SHA1 Message Date
Aapo Vienamo fbd3c2f4e2 sensors: ccs811: Deassert the reset pin with GPIO
The driver releases the sensor from reset in case the reset pin is
driven by a GPIO.

Signed-off-by: Aapo Vienamo <aapo.vienamo@iki.fi>
2018-04-09 17:09:06 -05:00
Aapo Vienamo 0a6f8c1aa2 drivers: sensor: ccs811: Fix value conversion
The arithmetic performed on the CO2 and VOC measurements is pointless as
the units of the sensor already match those of the API, furthermore the
multiplication will overflow the u32_t with CO2 or VOC readings greater
than 4294 ppm or ppb. This CO2 concentration is achievable by breathing
at the sensor.

Signed-off-by: Aapo Vienamo <aapo.vienamo@iki.fi>
2018-03-05 13:23:38 -06:00
Aapo Vienamo 3318f21196 sensors: css811: Use HAS_DTS_I2C_DEVICE in Kconfig
A condition is added to the Kconfig file to disable config options which
will be supplied from the dts.

Signed-off-by: Aapo Vienamo <aapo.vienamo@iki.fi>
2018-03-05 11:22:47 -06:00
Manivannan Sadhasivam 9e88120fdf drivers: sensor: Add support for CCS811 Digital Gas Sensor
Add support for AMS CCS811 Digital Gas Sensor for monitoring
indoor air quality. This sensor reports the following parameters:

1. Co2 concentration
2. VOC concentration
3. Sensor voltage
4. Sensor current

This driver only supports polling mode as of now.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
2018-02-06 11:16:26 -05:00