Multi-channel light and color sensor based on the AS7341 chip can be used for example to create portable spectrometer projects based on popular platforms such as Arduino, STM32, or Raspberry Pi. The AS7341 chip is equipped with 8 light spectrum channels, 1 near-infrared channel and 1 unfiltered channel. Built-in 6 independent 16-bit ADCs enable efficient parallel data processing. The module uses an I2C interface to communicate with the microcontrollers.

Features: 

1. Incorporates AS7341 chip, which integrates 8x visible spectrum channels, 1x near infrared channel, and 1x no filter channel
2. Embedded 6x independent 16-bit ADC, allows effectively processing data in parallel
3. Dedicated channel to detect ambient light flicker on specific frequency
4. 2x high brightness LEDs, can be used as fill light on dim environment
5. Interrupt pin to output inner ADC real time operating status
6. Features spectrum interrupt detection, with programable high/low thresholds
7. Provides general purpose input/output GPIO pin
8. Onboard voltage translator, compatible with 3.3V/5V operating voltage
9. Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32)

Package Includes:

1 x AS7341 Spectral Color Sensor
1 x PH2.0 6PIN wire 20cm

The Adafruit AS7341 10-Channel Light / Color Sensor Breakout is a multi-channel spectrometer, which is a special type of light sensor that is able to detect not only the amount of light present but also the amounts of light within different wavelengths. This means that you can use it to detect much better than the human eye is capable of, what color or colors of light is present.

The AS7341 packs within its 3x2mm footprint 16 different sensors that can detect 8 separate, overlapping bands of colored light. As if that weren’t enough, it also includes sensors for white light as well as Near Infra-red light, and even sensors made specifically for detecting light flicker at specific frequencies from things like indoor lighting.

The super-human color measuring capabilities of the AS7341 can be used to quantify the specific makeup of whatever interesting colors you can point it at, and can do so with more accuracy and specificity than a well-trained artist.

This is possible thanks to the impressive collection of sensors in the AS7341 being routed through a 16-bit 6-channel ADC that takes the raw measurements and converts them to digital values that can be read out over I2C.

11 readable individual sensor elements (10 light channels plus flicker detection) don’t exactly fit through a 6-channel ADC all at once, so the chip includes a so-called Super MUX (SMUX) that allows you to route the signal from any sensor to an ADC channel. Now that’s some super multiplexing! The sensor also has GPIO and interrupt pins that can allow it to communicate directly with other sensors, or the microcontroller itself.

All of this capability is made accessible by mounting the sensor on a STEMMA QT form factor breakout board, complete with level shifting circuitry and SparkFun Qwiic compatible Stemma QT connectors. This means that you can, without needing to solder, connect our AS7341 breakout into your 3.3V or 5V microcontroller of choice be it an Arduino Uno, Raspberry Pi, or one of the many CircuitPython-compatible boards.

Applications:

1. High-precision reflective color point and spectral measurements.
2. Fluid color, turbidity, or reagent-based constituent analysis.
3. Spectral power distribution and passive ambient CCT measurement for home and building automation.
4. High-end display color management.

Features: 

1. Precision color, spectral composition, and distribution measurements
2. 8 optical channels distributed over the visible spectral range + clear and NIR channels realized via silicon nano optic interference filter deposition technologies.
3. Low power consumption and efficient I²C communication.
4. Integrated ambient light flicker detection on-chip and light source detection through the NIR channel.
5. Electronic shutter/trigger and synch control.
6. GPIO can be used as an external trigger input or light source synchronization output.
7. External photodiodes to expand detection range.
8. GPIO can be used as input for external photodiodes including a mid-IR range.

Package Includes:

1 x Adafruit AS7341 10-Channel Light / Color Sensor Breakout – STEMMA QT/Qwiic

This is a high sensitivity digital ambient light sensor module based on TSL25911, features 600M:1 wide dynamic range, detects light intensity up to 88000Lux, controlled via I2C interface, low power consumption. It is capable of operating across various light environment.

Digital light intensity sensor from Waveshare. The module is based on TSL25911 chip, which enables detection of light intensity up to 88000 lx. The dynamic range is 600M:1. It is compatible with Arduinoand Raspberry Pi and uses I2C interface to communicate with the main module. It is used when working in different lighting conditions and has low power consumption.

The TSL2591 is a very-high sensitivity light-to-digital converter that transforms light intensity into a digital signal output capable of direct I²C interface. The device combines one
broadband photodiode (visible plus infrared) and one infrared-responding photodiode on a single CMOS integrated circuit. Two integrating ADCs convert the photodiode currents
into a digital output that represents the irradiance measured on each channel. This digital output can be input to a microprocessor where illuminance (ambient light level) in lux
is derived using an empirical formula to approximate the human eye response. The TSL2591 supports a traditional level style interrupt that remains asserted until the firmware clears it

Features: 

1. Adopts TSL25911FN, measures infrared plus visible light (wider range than TSL2561)
2. Embedded ADC, direct light intensity signal output to I2C interface, less noise jamming
3. High sensitivity up to 188uLux, wide dynamic range up to 600M:1
4. Embedded infrared-responding photodiode, allows precise measuring even on strong infrared noise environment
5. Provides interrupt output with programmable upper and lower thresholds
6. Onboard voltage translator, compatible with 3.3V/5V operating voltage
7. Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32)

Package Includes:

1 x TSL25911 Light Sensor
1 x PH2.0 5PIN wire

V Sensor (C) is an I2C digital UV sensor expansion board equipped with LTR390-UV-01, which can be used to measure UV and human visible light and can output light intensity data. UV Sensor (C) has the characteristics of sensitive sensing, fast response and small size. Its core sensor LTR390-UV-01 is integrated on a 27 × 20mm expansion board, which can be easily integrated into the device.

Features: 

1. Using LTR390-UV-01, can measure ultraviolet and visible light of human eye
2. Built-in ADC, can directly output light intensity through I2C interface, not easy to be disturbed by noise
3. With interrupt output and programmable upper and lower thresholds
4. On-board level conversion circuit, compatible with 3.3V/5V working level
5. Provide complete supporting information manual (Raspberry/Arduino/STM32 sample program and user manual, etc.)

Application:

1. Ultraviolet tester
2. Outdoor ultraviolet detector
3. Germicidal lamp

Package Includes:

1 x UV Sensor (C)
1 x PH2.0 5PIN wire

This Gravity: LTR390-UV sensor from DFRobot provides both ambient light and UV sensing with UV spectral response from 280nm to 430nm and raw data output. It features high sensitivity, quick response, and strong anti-interference ability.
With built-in ADC and MCU, this UV module can convert light data to a digital signal capable of being directly output via I2C or UART interface. It can be used for light experiments, outdoor UV detection, and other scenarios requiring UV or ambient light monitoring.

Applications:

1. UV intensity detection
2. Light intensity detection
3. Weather experiments for teaching
4. Light detection experiments
5. Devices for monitoring UV index
6. Devices for outdoor UV detection

Features:

1. Support I2C and UART communication
2. 3.3V & 5V compatible
3. 13 to 20 bits effective resolution
4. Adjustable gain range: 1, 3, 6, 9 and 18
5. Interrupt function, programmable upper and lower thresholds
6. Close to human eye spectral response

Specifications:

1. MCU: LTR390-UV-01
2. Operating Voltage: DC 3.3V to 5V
3. Operating Current: about 2.73mA (18-bit data acquisition with a time of 100ms)
4. Communication Interface: I2C/UART
5. I2C Address: 0x1C
6. UV Response Wavelength: 280nm to 430nm
7. ALS Spectral Response Wavelength: 450nm to 700nm
8. Output Type: digital output
9. Dimension: 32mm×27mm/1.26×1.06″

Packages Includes:

1 x DFRobot Gravity: LTR390 UV Light Sensor (280nm to 430nm) – I2C & UART