We live in a colorful world, but how much do you really know about color? Your eyes may deceive you, while the sensors don’t lie. This Gravity: AS7341 11-Channel Visible Light Sensor can tell you the truth about color.

DFRobot Gravity AS7341 11-Channel Visible Light Sensoremploys the new generation of AS7341 spectral sensor IC launched by the well-known AMS company. The sensor features eight channels for the visible light, one channel for near-IR, and one channel without a filter. Also, it integrates a dedicated channel to detect ambient light flicker. Besides that, this sensor comes with 6 independent 16-bit ADC channels for data processing in parallel. The two onboard extra-bright LEDs can supply light in a dark environment.

Applications:

This is a color sensor module based on TCS34725, will output RGB data and light intensity through the I2C interface. Its advantages include high sensitivity, wide dynamic range, accurate measuring, etc.

Waveshare sensor allowing to detect the colours of light. It is based on the sensor TCS34725. It has the LED backlight and a built-in IR filter. It can work with any microcontroller equipped with I2C interface. It runs with the voltage from 3.3 V to 5 V.

Sensor, enabling the detection of colors from the RGB palette, equipped with a built-in IR filter that blocks unwanted components in the range of infrared radiation. To work with the sensor, applied was controlled through the transistor LED indicator, whose task is to illuminate the detected surface.

TCS34725 is used for color sensing. TCS34725 is an I2C bus-based color light-todigital converter with IR filter, provides a digital return of red, green , blue (RGB) and clear light sensing values. The high sensitivity, wide dynamic range and IR blocking filter make the TCS34725 an ideal color sensor solution for use under varying lighting conditions and through attenuating materials.

Application:

1. Sorting by color
2. Ambient light sensing and calibration
3. Products color identification and classification

Features: 

1. Onboard TCS34725FN, embedded ADC, high sensitivity, wide dynamic range
2. I2C communication uses a few pins
3. Integrates IR blocking filter, minimizes the IR spectral component of the incoming light
4. Outputs RGB data without white balance
5. Outputs light intensity, feel the light like human eyes
6. Supports light intensity interrupt output, programmable upper and lower thresholds
7. Supports fill-light by onboard LED, adjustable brightness by PWM
8. Onboard voltage level translator, compatible with 3.3V/5V operating voltage
9. Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32)

Specification:

1. Sensor: TCS34725FN
2. Communication interface: I2C
3. Operating voltage: 3.3V/5V
4. Dimension: 27mm × 20mm
5. Resolution: 4-ch RGBC, 16-bit per ch
6. Recommended measuring distance: 2mm

Package Includes:

1 x TCS34725 Color Sensor
1 x PH2.0 6PIN wire 20cm

BH1745NUC is digital color sensor IC with I2C bus interface. This IC senses Red, Green and Blue light (RGB) and converts them to digital values. The high sensitivity, wide dynamic range and excellent Ircut characteristics makes this IC the most suitable to obtain the illuminance and color temperature of ambient light for adjusting LCD backlight of TV, mobile phone and
tablet PC. It is possible to detect very wide range light intensity. (0.005 – 40k lx)

Applications:

1. LCD TV
2. Mobile phone
3. NOTE PC
4. Tablet PC
5. Portable
6. game machine
7. Digital camera
8. Digital video camera
9. PDA
10. LCD display

Features: 

1. The Excellent Ircut Characteristics with an Ircut Filter
2. The High Sensitivity and Wide Dynamic Range (0.005 – 40k lx)
3.  Supports Low Transmittance (Dark) Window
4. Correspond to I2C Bus Interface ( f/s mode support )
5. Low Current by Power Down Function
6. Rejecting 50Hz/60Hz Light Noise
7. Correspond to 1.8V Logic Interface
8. Programmable Interrupt Function
9. It is possible to select 2 type of I2C bus slave address (ADDR =’L’: “0111000”, ADDR =’H’: “0111001”)

Packages Includes:

1 x PIMORONI BH1745 Luminance and Colour Sensor Breakout

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

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

Summer is coming, want to make a UV detector to know the UV index when you are under the sun? Grove – Sunlight Sensor is recommended here.

Grove – Sunlight Sensor is a multi-channel digital light sensor, which has the ability to detect UV-light, visible light and infrared light.

This device is based on SI1145, a new sensor from SiLabs. The Si1145 is a low-power, reflectance-based, infrared proximity, UV index and ambient light sensor with I2C digital interface and programmable-event interrupt output. This device offers excellent performance under a wide dynamic range and a variety of light sources including direct sunlight.

Grove – Sunlight Sensor includes an onboard Grove connector, which helps you to connect it to your Arduino easily. You can use this device for making some projects which need to detect the light, such as a simple UV detector for your Raspberry Pi weather station, or a smart irrigation system using Arduino if you need to monitor the visible spectrum.

Getting Started with SeeedStudio Grove Sunlight Sensor

Hardware Overview:

• Grove Connector – a 4pin interface, containing VCC, GND, SDA and SCL
• LED – LED Driver pin
• INT – a programmable interrupt output
• SI1145 – IC

Application:

1. Light detection
2. smart irrigation system
3. DIY weather station

Features: 

1. Multi-channel digital light sensor: can detect UV-light, visible light and infrared light
   
2. Wide spectrum detection range: 280-950nm
   
3. Easy to use: I2C Interface(7-bit), compatible with Grove port, just plug-and-play
4. Programmable configuration: Versatile for various applications
   
5. 3.3/5V Supply, suitable for many microcontrollers and SBCs

Package Includes:

1 x SeeedStudio Grove Sunlight Sensor