The TSL2591 luminosity sensor is an advanced digital light sensor, ideal for use in a wide range of light situations. Compared to low-cost CdS cells, this sensor is more precise, allowing for exact lux calculations, and can be configured for different gain/timing ranges to detect light ranges from 188u lux up to 88,000 Lux on the fly.

The best part of this sensor is that it contains both infrared and full spectrum diodes! That means you can separately measure infrared, full-spectrum, or human-visible light. Most sensors can only detect one or the other, which does not accurately represent what human eyes see (since we cannot perceive the IR light that is detected by most photo diodes) This sensor is much like the TSL2561 but with a wider range (and the interface code is different). This sensor has a massive 600,000,000:1 dynamic range! Unlike the TSL2561 you cannot change the I2C address, so keep that in mind.

The built-in ADC means you can use this with any microcontroller, even if it doesn’t have analog inputs. The current draw is extremely low, so it’s great for low-power data-logging systems. about 0.4mA when actively sensing, and less than 5 uA when in power-down mode.

As if that weren’t enough, we’ve also added SparkFun qwiic compatible STEMMA QT connectors for the I2C bus so you don’t even need to solder. Just wire up to your favorite micro with a plug-and-play cable to get data ASAP. For a no-solder experience, just wire up to your favorite micro using a STEMMA QT adapter cable. The Stemma QT connectors also mean the TSL2591 can be used with our various associated accessories. QT Cable is not included, but we have a variety in the shop.

Package Includes:

1 x Adafruit TSL2591 High Dynamic Range Digital Light Sensor – STEMMA QT

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

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

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

LightRanger 10 Click as its foundation uses the VL53L4CX, a ToF (Time-of-Flight) optical distance sensor with an extended target detection range from STMicroelectronics. This ToF sensor integrates a VCSEL (vertical-cavity surface-emitting laser), which emits an entirely invisible 940nm IR light, totally safe for eyes (Class 1 certification), and a SPAD (single-photon avalanche diode) array which helps the VL53L4CX to achieve the best ranging performance even when a Click board™ is hidden behind a wide range of cover glass materials. Specifically designed for long-range and multi-target measurements, the VL53L4CX provides very accurate distance measurements up to 6m with excellent results over short distances and 18° FoV (Field of View), which improves performances under ambient light. Thanks to ST’s patented algorithms, the VL53L4CX can detect multiple objects within the FoV with depth understanding. ST histogram algorithms ensure cover glass crosstalk immunity beyond 80cm and dynamic smudge compensation for targets below 80cm. Like all Time-of-Flight sensors based on ST’s FlightSense technology, the VL53L4CX records an absolute distance measurement regardless of the target color and reflectance.

LightRanger 10 Click communicates with MCU using the standard I2C 2-Wire interface to read data and configure settings with a maximum clock frequency of 1MHz. This Click board™ can be enabled or disabled through the EN pin routed to the CS pin of the mikroBUS™ socket; hence, offering a switch operation to turn ON the initial boot sequence of the VL53L4CX. It also possesses an additional interrupt pin, routed to the INT pin on the mikroBUS™ socket, indicating when a ranging measurement is available.

This Click board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. However, the Click board™ comes equipped with a library containing functions and an example code that can be used, as a reference, for further development.

Applications: Can be used for presence (object) detection, distance measurement, industrial ranging, inventory control, and more

Specification and Features:

1. Type: Optical Sensor ModuleInterface I2C
2. Compatibility mikroBUS
3. Click board size S (28.6 x 25.4 mm)
4. Input Voltage 3.3V
5. On-board modules VL53L4CX – ToF (Time-of-Flight) optical distance sensor from STMicroelectronics
6. Fast and accurate distance ranging, major improvement in long distance-ranging performance across all targets and light levels,
7. Multiobject detection capability, targets beyond 80 cm range are immune to crosstalk from cover glass, and more

Useful Links:

Package Includes:

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