Light & Colour
Browse our range of light and colour sensors, including ambient light, UV, IR, and full-spectrum colour recognition modules. Whether you need a simple photoresistor or a multi-channel spectral sensor, we stock options for every project.
Popular with Australian makers, educators, and engineers for projects like automatic lighting, UV monitoring, gesture detection, and colour-matching systems. Most modules use I2C for easy integration with Arduino, Raspberry Pi, and CircuitPython.
Fast shipping across Australia.
Bulk LDR Photoresistor - 10 pack
SKU: LB-BK-LR0282 | Brand: Little Bird
Description This Light Dependant Resistor (LDR) can be used to easily measure ambient light with your Arduino or other board with analog input. You will need to set this up as a voltage divider with a resistor of a...
Delivered by Fri 12 Jun
LDR Photoresistor
SKU: LB-LR0282 | Brand: Little Bird
This Light Dependant Resistor (LDR) can be used to easily measure ambient light with your Arduino or other board with analog input. You will need to set this up as a voltage divider with a resistor of around 10KΩ. ...
Delivered by Fri 12 Jun
UV Ultraviolet Ray Detection Sensor
SKU: LB-LS2299 | Brand: Little Bird
A UV detection sensor module that measures ultraviolet light intensity in the 200–370 nm wavelength range. The analogue output (0–1 V DC) is proportional to the UV Index, making it suitable for measuring UV exposure i...
Delivered by Fri 12 Jun
Photo Transistor Light Sensor
SKU: AF-2831 | Brand: Adafruit
This Photo Transistor Light Sensor is a simple sensor that detects ambient light. It's kind of the opposite of an LED - when light hits the little chip inside, it induces current to flow from the long pin...
Delivered by Fri 12 Jun
Photo cell (CdS photoresistor)
SKU: AF-161 | Brand: Adafruit
CdS cells are little light sensors. As the squiggly face is exposed to more light, the resistance goes down. When its light, the resistance is about 5-10KΩ, when dark it goes up to 200KΩ. To use, connect one side o...
Delivered by Fri 12 Jun
Gravity:Analog UV Sensor V2
SKU: DF-SEN0162 | Brand: DFRobot
The Gravity Analog UV Sensor V2 uses a GUVA-S12SD photodiode to detect ultraviolet radiation in the 200–370 nm (UV-A) wavelength range. It outputs a linear analogue voltage signal proportional to UV intensity, making ...
Delivered by Tue 23 Jun
Analog UV Light Sensor Breakout - GUVA-S12SD
SKU: AF-1918 | Brand: Adafruit
An analog UV light sensor breakout based on the GUVA-S12SD photodiode, detecting the 240–370nm range covering UVB and most of the UVA spectrum. An on-board op-amp amplifies the tiny photodiode current to a readable vo...
Delivered by Thu 2 Jul
LilyPad Light Sensor
SKU: SF-DEV-14629 | Brand: SparkFun
The LilyPad Light Sensor is a sewable breakout board with an ALS-PT19 light sensor built in and ready to use right away. Each sensor outputs voltage between 0V and 3.3V depending on the level of ambient light shi...
Delivered by Tue 23 Jun
Ambient Light Sensor - TEMT6000x01
SKU: SF-COM-08348 | Brand: SparkFun
The TEMT6000x01 is a compact ambient light sensor that operates as an NPN phototransistor. The more light that hits the sensor, the stronger the base bias, producing an analog output proportional to the ambient light ...
Delivered by Fri 12 Jun
Gravity:Analog Grayscale Sensor For Arduino
SKU: DF-DFR0022 | Brand: DFRobot
The Gravity Analogue Grayscale Sensor measures reflected light intensity, outputting an analogue value that ranges from black (low) to white (high). It uses a photocell paired with an integrated white LED to illuminat...
Delivered by Tue 23 Jun
ALS-PT19 Light Sensor
SKU: SF-SEN-12566 | Brand: SparkFun
The ALS-PT19 is a compact SMD ambient light sensor, significantly smaller than standard through-hole alternatives like the TEMT6000. Functioning as an NPN phototransistor, it provides an analogue voltage output propor...
Delivered by Tue 23 Jun
Light Sensor Materials Kit
SKU: PI-CBI013 | Brand: Pimoroni
You’ve learned how to blink, fade and flash lights – now learn how to sense light levels! The Chibitronics Light Sensor sticker can turn the light level shining upon it into an analog voltage. Best of all, it comes...
Out of stock