•RGB & Clear light sensing elements•IR blocking filter, integrated on-chip & localised to the colour sensing photodiodes allows for more accurate measurements•3, 800, 000:1 dynamic range with adjustable time & gain so suitable for use behind darkened glass•3.3V regulator so you can power with 3-5VDC safely• Level shifting for i 2c pins means you can use 3.3V or 5V logic• Neutral 4150K temperature LED with MOSFET driver onboard to illuminate what you'r trying to sense (can be turned on or off using any logic level output•20.44mm by 20.28mm Your electronics can now see in dazzling colour with this lovely colour light sensor. We found the best colour sensor on the market, the TCS34725, which has RGB & Clear light sensing elements. An IR blocking filter, integrated on-chip & localized to the colour sensing photodiodes, minimizes the IR spectral component of the incoming light & allows colour measurements to be made accurately. The filter means you'll get much truer colour than most sensors, since humans don't see IR. The sensor also has an incredible 3, 800, 000:1 dynamic range with adjustable integration time & gain so it is suited for use behind darkened glass. We add supporting circuitry as well, such as a 3.3V regulator so you can power the breakout with 3-5VDC safely & level shifting for the I2C pins so they can be used with 3.3V or 5V logic. Finally, we specified a nice neutral 4150°K temperature LED with a MOSFET driver onboard to illuminate what you're trying to sense. The LED can be easily turned on or off by any logic level output. Connect to any microcontroller with I2C & our example code will quickly get you going with 4 channel readings. We include some example code to detect light lux & temperature that we snagged from the eval board software. A detailed tutorial can be found by clicking here Click here to check out our Arduino library & follow our tutorial to install Wire up the sensor by connecting VDD to 3-5VDC, Ground to common ground, SCL to I2C Clock & SDA to I2C Data on your Arduino. Restart the IDE & select the example sketch & start putting all your favourite fruit next to the sensor element! ...

• It's a digital sensor that works over I2C so just about any microcontroller can use it• Individual visible & IR sensing elements so you can measure just about any kind of light
- we only wrote our library to printout the 'counts' rather than the calculate the exact values of IR & Visible light so if you need precision Lux measurement check out the TSL2561• If you're feeling really advanced, you can connect up an IR LED to the LED pin & use the basic proximity sensor capability that is in the SI1145 as well• Adafruit wrapped this nice little sensor up on a PCB with level shifting & regulation circuitry so you can safely use it with 3 or 5V microcontrollers.•IR Sensor Spectrum: Wavelength: 550nm-1000nm (centered on 800)• Visible Light Sensor Spectrum: Wavelength: 400nm-800nm (centered on 530)• Voltage Supply: Power with 3-5VDC• Output Type: I2C address 0x 60 (7-bit)• Operating Temperature: -40°C ~ 85°CRemember when you were a kid & there was a birthday party at the pool & your parents totally embarrassed you by slathering you all over with sunscreen & you were all "MOM I HAVE ENOUGH SUNSCREEN" & she wouldn't listen? Well, if you had this UV Index sensor connected up to an Arduino you could have said " According to this calibrated SI1145 sensor from Si Labs, the UV index right now is 4.5 which means I do not need more sunscreen" & she would have been so impressed with your project that you could have spent more time splashing around. The SI1145 is a new sensor from Si Labs with a calibrated UV sensing algorithm that can calculate UV Index. We took this outside a couple days & compared the calculated UV index with the news-reported index & found it was very accurate! It's a digital sensor that works over I2C so just about any microcontroller can use it. The sensor also has individual visible & IR sensing elements so you can measure just about any kind of light
- we only wrote our library to printout the 'counts' rather than the calculate the exact values of IR & Visible light so if you need precision Lux measurement check out the TSL2561. If you're feeling really advanced, you can connect up an IR LED to the LED pin & use the basic proximity sensor capability that is in the SI1145 as well. We wrapped this nice little sensor up on a PCB with level shifting & regulation circuitry so you can safely use it with 3 or 5V microcontrollers. If you are using an Arduino, we've got a lovely tutorial & library already written up with example code so you can quickly read sensor readings & the UV index in under 10 minutes. Each order comes with one fully assembled & tested PCB breakout & a small piece of header. You'll need to solder the header onto the PCB but it's fairly easy & takes only a few minutes even for a beginner.

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• Each button is 10mm x 10mm square• Button pads tile up nicely edge to edge but can be cut down nicely if needed•3mm of travel when pressed to give a very satisfying feel• Conductive pad ring which can close a properly designed contact underneath• Perfect for use with the Adafruit Trellis (Maplin Code: A89QN)• We would recommend our super bright LEDs Blue, Yellow, Red & White So squishy! These silicone elastomer keypads are just waiting for your fingers to press them. Go ahead, squish all you like! (They're durable & easy to clean, just wipe with mild soap & water) These are just like the light up rubber buttons you find on stuff like appliances & tools, but these are open source & easy to integrate into your next project. Each button is 10mm x 10mm square & 10mm tall. There is 5mm of grid spacing between the buttons. You can 'tile' the button pads edge-to-edge & they'll grid up correctly. You can also cut the pads down if you like, the silicone is very soft. The way they're molded, they give about 3mm of travel when pressed for a very satisfying feel. They are completely quiet, however. On the bottom of each button is a conductive pad ring which can close a properly design contact underneath. Each button is 10mm tall & can fit a 3mm LED inside quite easily. 5mm LEDs are too big, so stick with 3mm here. The LED is optional, having it or not does not affect the 'action'. but it's nice to backlight buttons. ...

• Requires a 5V supply• Constant current drivers for ultra-bright, consistent colour•1/16 step display dimming•I2C interface• Backpack comes with address-selection jumpers so you can connect up to four mini 8x 8's or eight 7-segments • And to view the library please click here to help you get started!• To see Adafruits tutorial showing how to solder, wire & control the display please click here What's better than a single LED? Lots of LEDs! A fun way to make a small display is to use an 8x 8 matrix or a 4-digit 7-segment display. Matrices like these are 'multiplexed'
- so to control 64 LEDs you need 16 pins. That's a lot of pins, & there are driver chips like the MAX7219 that can control a matrix for you but there's a lot of wiring to set up & they take up a ton of space. The matrices use a driver chip that does all the heavy lifting for you: They have a built in clock so they multiplex the display. They use constant-current drivers for ultra-bright, consistent colour (the images above are photographed at the dimmest setting to avoid overloading our camera!), 1/16 step display dimming, all via a simple I2C interface. These 1.2" matrix backpacks come with three address-selection jumpers so you can connect up to eight 1.2" 8x 8's together (or a combination, such as four 1.2" 8x 8's & four 7-segments, etc) on a single I2C bus.
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• Requires a 5V supply• Constant current drivers for ultra-bright, consistent colour•1/16 step display dimming•I2C interface• Backpack comes with address-selection jumpers so you can connect up to four mini 8x 8's or eight 7-segments • And to view the library please click here to help you get started!• To see Adafruits tutorial showing how to solder, wire & control the display please click here What's better than a single LED? Lots of LEDs! A fun way to make a small display is to use an 8x 8 matrix or a 4-digit 7-segment display. Matrices like these are 'multiplexed'
- so to control 64 LEDs you need 16 pins. That's a lot of pins, & there are driver chips like the MAX7219 that can control a matrix for you but there's a lot of wiring to set up & they take up a ton of space. The matrices use a driver chip that does all the heavy lifting for you: They have a built in clock so they multiplex the display. They use constant-current drivers for ultra-bright, consistent colour (the images above are photographed at the dimmest setting to avoid overloading our camera!), 1/16 step display dimming, all via a simple I2C interface. These 1.2" matrix backpacks come with three address-selection jumpers so you can connect up to eight 1.2" 8x 8's together (or a combination, such as four 1.2" 8x 8's & four 7-segments, etc) on a single I2C bus.
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• Requires a 5V supply• Constant current drivers for ultra-bright, consistent colour•1/16 step display dimming•I2C interface• Backpack comes with address-selection jumpers so you can connect up to four mini 8x 8's or eight 7-segments • And to view the library please click here to help you get started!• To see Adafruits tutorial showing how to solder, wire & control the display please click here What's better than a single LED? Lots of LEDs! A fun way to make a small display is to use an 8x 8 matrix or a 4-digit 7-segment display. Matrices like these are 'multiplexed'
- so to control 64 LEDs you need 16 pins. That's a lot of pins, & there are driver chips like the MAX7219 that can control a matrix for you but there's a lot of wiring to set up & they take up a ton of space. The matrices use a driver chip that does all the heavy lifting for you: They have a built in clock so they multiplex the display. They use constant-current drivers for ultra-bright, consistent colour (the images above are photographed at the dimmest setting to avoid overloading our camera!), 1/16 step display dimming, all via a simple I2C interface. These 1.2" matrix backpacks come with three address-selection jumpers so you can connect up to eight 1.2" 8x 8's together (or a combination, such as four 1.2" 8x 8's & four 7-segments, etc) on a single I2C bus.
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• Requires a 5V supply• Constant current drivers for ultra-bright, consistent colour•1/16 step display dimming•I2C interface• Backpack comes with address-selection jumpers so you can connect up to four mini 8x 8's or eight 7-segments • And to view the library please click here to help you get started!• To see Adafruits tutorial showing how to solder, wire & control the display please click here What's better than a single LED? Lots of LEDs! A fun way to make a small display is to use an 8x 8 matrix or a 4-digit 7-segment display. Matrices like these are 'multiplexed'
- so to control 64 LEDs you need 16 pins. That's a lot of pins, & there are driver chips like the MAX7219 that can control a matrix for you but there's a lot of wiring to set up & they take up a ton of space. The matrices use a driver chip that does all the heavy lifting for you: They have a built in clock so they multiplex the display. They use constant-current drivers for ultra-bright, consistent colour (the images above are photographed at the dimmest setting to avoid overloading our camera!), 1/16 step display dimming, all via a simple I2C interface. These 1.2" matrix backpacks come with three address-selection jumpers so you can connect up to eight 1.2" 8x 8's together (or a combination, such as four 1.2" 8x 8's & four 7-segments, etc) on a single I2C bus.
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• Requires a 5V supply• Constant current drivers for ultra-bright, consistent colour•1/16 step display dimming•I2C interface• Backpack comes with address-selection jumpers so you an connect up to eight 1.2" 8x 8's together (or a combination, such as four 1.2" 8x 8's & four 7-segments, etc) on a single I2C bus. What's better than a single LED? Lots of LEDs! But adding an LED matrix can mean a lot of wiring & space. This little kit makes the whole thing simple & tidy! The product kit comes with:A fully tested & assembled LED backpack 1.2" Ultra-bright 8x 8 matrix 4-pin header Adafruit have even provided a tutorial showing how to solder, wire & control the display & click here for the library to help you get started! ...

• Requires a 5V supply• Constant current drivers for ultra-bright, consistent colour•1/16 step display dimming•I2C interface• Backpack comes with address-selection jumpers so you can connect up to eight 1.2" 8x 8's together (or a combination, such as four 1.2" 8x 8's & four 7-segments, etc) on a single I2C bus. What's better than a single LED? Lots of LEDs! But adding an LED matrix can mean a lot of wiring & space. This little kit makes the whole thing simple & tidy! The product kit comes with:A fully tested & assembled LED backpack 1.2" Ultra-bright 8x 8 matrix 4-pin header Adafruit have even provided a tutorial showing how to solder, wire & control the display & click here for the library to help you get started! ...

• Requires a 5V supply• Constant current drivers for ultra-bright, consistent colour•1/16 step display dimming•I2C interface• Backpack comes with address-selection jumpers so you can connect up to eight 1.2" 8x 8's together (or a combination, such as four 1.2" 8x 8's & four 7-segments, etc) on a single I2C bus. What's better than a single LED? Lots of LEDs! But adding an LED matrix can mean a lot of wiring & space. This little kit makes the whole thing simple & tidy! The product kit comes with:A fully tested & assembled LED backpack 1.2" Ultra-bright 8x 8 matrix 4-pin header Adafruit have even provided a tutorial showing how to solder, wire & control the display & click here for the library to help you get started! ...