adafruit_as726x
¶
Driver for the AS726x spectral sensors
Author(s): Dean Miller
Implementation Notes¶
Hardware:
Adafruit AS7262 6-Channel Visible Light / Color Sensor Breakout (Product ID: 3779)
Software and Dependencies:
Adafruit CircuitPython firmware for the supported boards: https://circuitpython.org/downloads
Adafruit’s Bus Device library: https://github.com/adafruit/Adafruit_CircuitPython_BusDevice
- class adafruit_as726x.AS726x¶
AS726x spectral sensor base class.
- MODE_0 = 0¶
Continuously gather samples of violet, blue, green and yellow. Orange and red are skipped and read zero.
- MODE_1 = 1¶
Continuously gather samples of green, yellow, orange and red. Violet and blue are skipped and read zero.
- MODE_2 = 2¶
Continuously gather samples of all colors
- ONE_SHOT = 3¶
Gather a single sample of all colors and then stop
- property driver_led¶
True when the driver LED is on. False otherwise.
- property indicator_led¶
True when the indicator LED is on. False otherwise.
- property driver_led_current¶
The current limit for the driver LED in milliamps. One of:
12.5 mA
25 mA
50 mA
100 mA
- property indicator_led_current¶
The current limit for the indicator LED in milliamps. One of:
1 mA
2 mA
4 mA
8 mA
- property gain¶
The gain for the sensor
- property integration_time¶
The integration time in milliseconds between 2.8 and 714 ms
- start_measurement()¶
Begin a measurement.
This will set the device to One Shot mode and values will not change after
data_ready
untilstart_measurement()
is called again or theconversion_mode()
is changed.
- read_channel(channel)¶
Read an individual sensor channel
- read_calibrated_value(channel)¶
Read a calibrated sensor channel
- property data_ready¶
True if the sensor has data ready to be read, False otherwise
- property temperature¶
The temperature of the device in Celsius
- property violet¶
Calibrated violet (450nm) value
- property blue¶
Calibrated blue (500nm) value
- property green¶
Calibrated green (550nm) value
- property yellow¶
Calibrated yellow (570nm) value
- property orange¶
Calibrated orange (600nm) value
- property red¶
Calibrated red (650nm) value
- property raw_violet¶
Raw violet (450nm) 16-bit value
- property raw_blue¶
Raw blue (500nm) 16-bit value
- property raw_green¶
Raw green (550nm) 16-bit value
- property raw_yellow¶
Raw yellow (570nm) 16-bit value
- property raw_orange¶
Raw orange (600nm) 16-bit value
- property raw_red¶
Raw red (650nm) 16-bit value
- class adafruit_as726x.AS726x_I2C(i2c_bus, address=73)¶
AS726x spectral sensor via I2C.
- Parameters
Quickstart: Importing and using the AS726x
Here is an example of using the
AS726x_I2C
class. First you will need to import the libraries to use the sensorimport board from adafruit_as726x import AS726x_I2C
Once this is done you can define your
board.I2C
object and define your sensor objecti2c = board.I2C() # uses board.SCL and board.SDA sensor = AS726x_I2C(i2c)
Now you have access to the different color attributes
violet = sensor.violet blue = sensor.blue green = sensor.green yellow = sensor.yellow orange = sensor.orange red = sensor.red
- class adafruit_as726x.AS726x_UART(uart)¶
AS726x spectral sensor via UART.
- Parameters
uart (UART) – The UART connected to the sensor
Quickstart: Importing and using the AS726x
Here is an example of using the
AS726x_I2C
class. First you will need to import the libraries to use the sensorimport board from adafruit_as726x import AS726x_UART
Once this is done you can define your
board.UART
object and define your sensor objectuart = board.UART() # uses board.SCL and board.SDA sensor = AS726x_UART(uart)
Now you have access to the different color attributes
violet = sensor.violet blue = sensor.blue green = sensor.green yellow = sensor.yellow orange = sensor.orange red = sensor.red
- read_channel(channel)¶
Read an individual sensor channel
- read_calibrated_value(channel)¶
Read a calibrated sensor channel