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

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

The LTR390 is one of the few low-cost UV sensors available, and it’s a pretty nice one! With both ambient light and UVA sensing with a peak spectral response between 300 and 350nm. You can use it for measuring how much sun you can get before needing to covering up.

Unlike the Si1145, this sensor will not give you UV Index readings. However, the Si1145 does UV Index approximations based on a light level, not true UV sensing. The LTR-390, in contrast, does have a real light sensor in the UV spectrum. It’s also got a much much simpler I2C interface so you can run it on the Arduino or Python microcontrollers/microcomputers with ease. Unlike the GUVA analog sensor, the biasing and ADC is all internal so you don’t need an ADC.

To make using it as easy as possible, we’ve put the LTR390 on a breakout PCB  in our Stemma QT form factor with a sprinkle of support circuitry to give you options when testing. You can either use a breadboard or the SparkFun qwiic compatible STEMMA QT connectors, and compatibility with 5V voltage levels as commonly found on Arduinos, as well as 3.3V logic used by many other boards like the Raspberry Pi or our Feathers.

Package Includes:

1 x Adafruit LTR390 UV Light Sensor – STEMMA QT/Qwiic

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

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