#include "Arduino.h"
#include <Adafruit_BusIO_Register.h>
#include <Adafruit_I2CDevice.h>
#include <Wire.h>

Classes
class	Adafruit_AS7341
	Class that stores state and functions for interacting with the AS7341 11-Channel Spectral Sensor. More...

Macros
#define	AS7341_I2CADDR_DEFAULT 0x39
	AS7341 default i2c address.

#define	AS7341_CHIP_ID 0x09
	AS7341 default device id from WHOAMI.

#define	AS7341_WHOAMI 0x92
	Chip ID register.

#define	AS7341_ASTATUS 0x60
	AS7341_ASTATUS (unused)

#define	AS7341_CH0_DATA_L_ 0x61
	AS7341_CH0_DATA_L (unused)

#define	AS7341_CH0_DATA_H_ 0x62
	AS7341_CH0_DATA_H (unused)

#define	AS7341_ITIME_L 0x63
	AS7341_ITIME_L (unused)

#define	AS7341_ITIME_M 0x64
	AS7341_ITIME_M (unused)

#define	AS7341_ITIME_H 0x65
	AS7341_ITIME_H (unused)

#define	AS7341_CONFIG 0x70
	Enables LED control and sets light sensing mode.

#define	AS7341_STAT 0x71
	AS7341_STAT (unused)

#define	AS7341_EDGE 0x72
	AS7341_EDGE (unused)

#define	AS7341_GPIO 0x73
	Connects photo diode to GPIO or INT pins.

#define	AS7341_LED 0x74
	LED Register; Enables and sets current limit.

#define	AS7341_ENABLE 0x80
	Measurements and Power. More...

#define	AS7341_ATIME 0x81
	Sets ADC integration step count.

#define	AS7341_WTIME 0x83
	AS7341_WTIME (unused)

#define	AS7341_SP_LOW_TH_L 0x84
	Spectral measurement Low Threshold low byte.

#define	AS7341_SP_LOW_TH_H 0x85
	Spectral measurement Low Threshold high byte.

#define	AS7341_SP_HIGH_TH_L 0x86
	Spectral measurement High Threshold low byte.

#define	AS7341_SP_HIGH_TH_H 0x87
	Spectral measurement High Threshold low byte.

#define	AS7341_AUXID 0x90
	AS7341_AUXID (unused)

#define	AS7341_REVID 0x91
	AS7341_REVID (unused)

#define	AS7341_ID 0x92
	AS7341_ID (unused)

#define	AS7341_STATUS 0x93
	Interrupt status registers. Indicates the occourance of an interrupt.

#define	AS7341_ASTATUS_ 0x94
	AS7341_ASTATUS, same as 0x60 (unused)

#define	AS7341_CH0_DATA_L 0x95
	ADC Channel Data.

#define	AS7341_CH0_DATA_H 0x96
	ADC Channel Data.

#define	AS7341_CH1_DATA_L 0x97
	ADC Channel Data.

#define	AS7341_CH1_DATA_H 0x98
	ADC Channel Data.

#define	AS7341_CH2_DATA_L 0x99
	ADC Channel Data.

#define	AS7341_CH2_DATA_H 0x9A
	ADC Channel Data.

#define	AS7341_CH3_DATA_L 0x9B
	ADC Channel Data.

#define	AS7341_CH3_DATA_H 0x9C
	ADC Channel Data.

#define	AS7341_CH4_DATA_L 0x9D
	ADC Channel Data.

#define	AS7341_CH4_DATA_H 0x9E
	ADC Channel Data.

#define	AS7341_CH5_DATA_L 0x9F
	ADC Channel Data.

#define	AS7341_CH5_DATA_H 0xA0
	ADC Channel Data.

#define	AS7341_STATUS2 0xA3
	Measurement status flags; saturation, validity.

#define	AS7341_STATUS3 0xA4
	Spectral interrupt source, high or low threshold.

#define	AS7341_STATUS5 0xA6
	AS7341_STATUS5 (unused)

#define	AS7341_STATUS6 0xA7
	AS7341_STATUS6 (unused)

#define	AS7341_CFG0 0xA9
	Sets Low power mode, Register bank, and Trigger lengthening.

#define	AS7341_CFG1 0xAA
	Controls ADC Gain.

#define	AS7341_CFG3 0xAC
	AS7341_CFG3 (unused)

#define	AS7341_CFG6 0xAF
	Used to configure Smux.

#define	AS7341_CFG8 0xB1
	AS7341_CFG8 (unused)

#define	AS7341_CFG9 0xB2
	interrupts More...

#define	AS7341_CFG10 0xB3
	AS7341_CFG10 (unused)

#define	AS7341_CFG12 0xB5
	Spectral threshold channel for interrupts, persistence and auto-gain.

#define	AS7341_PERS 0xBD
	interupt More...

#define	AS7341_GPIO2 0xBE
	input More...

#define	AS7341_ASTEP_L 0xCA
	Integration step size ow byte.

#define	AS7341_ASTEP_H 0xCB
	Integration step size high byte.

#define	AS7341_AGC_GAIN_MAX 0xCF
	AS7341_AGC_GAIN_MAX (unused)

#define	AS7341_AZ_CONFIG 0xD6
	AS7341_AZ_CONFIG (unused)

#define	AS7341_FD_TIME1 0xD8
	Flicker detection integration time low byte.

#define	AS7341_FD_TIME2 0xDA
	Flicker detection gain and high nibble.

#define	AS7341_FD_CFG0 0xD7
	AS7341_FD_CFG0 (unused)

#define	AS7341_FD_STATUS 0xDB
	type More...

#define	AS7341_INTENAB 0xF9
	Enables individual interrupt types.

#define	AS7341_CONTROL 0xFA
	Auto-zero, fifo clear, clear SAI active.

#define	AS7341_FIFO_MAP 0xFC
	AS7341_FIFO_MAP (unused)

#define	AS7341_FIFO_LVL 0xFD
	AS7341_FIFO_LVL (unused)

#define	AS7341_FDATA_L 0xFE
	AS7341_FDATA_L (unused)

#define	AS7341_FDATA_H 0xFF
	AS7341_FDATA_H (unused)

#define	AS7341_SPECTRAL_INT_HIGH_MSK 0b00100000
	bitmask to check for a high threshold interrupt

#define	AS7341_SPECTRAL_INT_LOW_MSK 0b00010000
	bitmask to check for a low threshold interrupt

Enumerations
enum	as7341_gain_t { AS7341_GAIN_0_5X, AS7341_GAIN_1X, AS7341_GAIN_2X, AS7341_GAIN_4X, AS7341_GAIN_8X, AS7341_GAIN_16X, AS7341_GAIN_32X, AS7341_GAIN_64X, AS7341_GAIN_128X, AS7341_GAIN_256X, AS7341_GAIN_512X }
	Allowable gain multipliers for `setGain`

enum	as7341_smux_cmd_t { AS7341_SMUX_CMD_ROM_RESET, AS7341_SMUX_CMD_READ, AS7341_SMUX_CMD_WRITE }
	Available SMUX configuration commands. More...

enum	as7341_adc_channel_t { AS7341_ADC_CHANNEL_0, AS7341_ADC_CHANNEL_1, AS7341_ADC_CHANNEL_2, AS7341_ADC_CHANNEL_3, AS7341_ADC_CHANNEL_4, AS7341_ADC_CHANNEL_5 }
	ADC Channel specifiers for configuration.

enum	as7341_color_channel_t { AS7341_CHANNEL_415nm_F1, AS7341_CHANNEL_445nm_F2, AS7341_CHANNEL_480nm_F3, AS7341_CHANNEL_515nm_F4, AS7341_CHANNEL_CLEAR_0, AS7341_CHANNEL_NIR_0, AS7341_CHANNEL_555nm_F5, AS7341_CHANNEL_590nm_F6, AS7341_CHANNEL_630nm_F7, AS7341_CHANNEL_680nm_F8, AS7341_CHANNEL_CLEAR, AS7341_CHANNEL_NIR }
	Spectral Channel specifiers for configuration and reading.

enum	as7341_int_cycle_count_t { AS7341_INT_COUNT_ALL, AS7341_INT_COUNT_1, AS7341_INT_COUNT_2, AS7341_INT_COUNT_3, AS7341_INT_COUNT_5, AS7341_INT_COUNT_10, AS7341_INT_COUNT_15, AS7341_INT_COUNT_20, AS7341_INT_COUNT_25, AS7341_INT_COUNT_30, AS7341_INT_COUNT_35, AS7341_INT_COUNT_40, AS7341_INT_COUNT_45, AS7341_INT_COUNT_50, AS7341_INT_COUNT_55, AS7341_INT_COUNT_60 }
	The number of measurement cycles with spectral data outside of a threshold required to trigger an interrupt. More...

enum	as7341_gpio_dir_t { AS7341_GPIO_OUTPUT, AS7341_GPIO_INPUT }
	Pin directions to set how the GPIO pin is to be used. More...

enum	as7341_waiting_t { AS7341_WAITING_START, AS7341_WAITING_LOW, AS7341_WAITING_HIGH, AS7341_WAITING_DONE }
	Wait states for async reading.

Macro Definition Documentation

◆ AS7341_ENABLE

#define AS7341_ENABLE 0x80

Measurements and Power.

Main enable register. Controls SMUX, Flicker Detection, Spectral

◆ AS7341_CFG9

#define AS7341_CFG9 0xB2

interrupts

Enables flicker detection and smux command completion system

◆ AS7341_PERS

#define AS7341_PERS 0xBD

interupt

Number of measurement cycles outside thresholds to trigger an

◆ AS7341_GPIO2

#define AS7341_GPIO2 0xBE

input

GPIO Settings and status: polarity, direction, sets output, reads

◆ AS7341_FD_STATUS

#define AS7341_FD_STATUS 0xDB

type

Flicker detection status; measurement valid, saturation, flicker

Enumeration Type Documentation

◆ as7341_smux_cmd_t

enum as7341_smux_cmd_t

Available SMUX configuration commands.

Enumerator
AS7341_SMUX_CMD_ROM_RESET	ROM code initialization of SMUX.
AS7341_SMUX_CMD_READ	Read SMUX configuration to RAM from SMUX chain.
AS7341_SMUX_CMD_WRITE	Write SMUX configuration from RAM to SMUX chain.

◆ as7341_int_cycle_count_t

enum as7341_int_cycle_count_t

The number of measurement cycles with spectral data outside of a threshold required to trigger an interrupt.

Enumerator
AS7341_INT_COUNT_ALL	0
AS7341_INT_COUNT_1	1
AS7341_INT_COUNT_2	2
AS7341_INT_COUNT_3	3
AS7341_INT_COUNT_5	4
AS7341_INT_COUNT_10	5
AS7341_INT_COUNT_15	6
AS7341_INT_COUNT_20	7
AS7341_INT_COUNT_25	8
AS7341_INT_COUNT_30	9
AS7341_INT_COUNT_35	10
AS7341_INT_COUNT_40	11
AS7341_INT_COUNT_45	12
AS7341_INT_COUNT_50	13
AS7341_INT_COUNT_55	14
AS7341_INT_COUNT_60	15

◆ as7341_gpio_dir_t

enum as7341_gpio_dir_t

Pin directions to set how the GPIO pin is to be used.

Enumerator
AS7341_GPIO_OUTPUT	THhe GPIO pin is configured as an open drain output.
AS7341_GPIO_INPUT	The GPIO Pin is set as a high-impedence input.

Classes

Macros

Enumerations