As of October 12th, 2015 this product now ships with an Adafruit Trinket with a micro-USB plug. One of the most popular Trinket projects now has its own kit pack!  Make your very own programmable NeoPixel goggles with 2 x 16 LED rings and an Adafruit Trinket. It even comes with a rechargeable LiPoly battery and charger. It's a great easy build and when you're done you'll have the coolest accessory. Follow along with our popular...

Deprecation Warning: The Trinket bit-bang USB technique it uses doesn't work as well as it did in 2014, many modern computers won't work well. So while we still carry the Trinket so that people can maintain some older projects, we no longer recommend it. Please check out the Trinket M0. It has built-in USB, more capabilities, and is comparable in price! Trinket may be small, but do not be fooled by its size! It's a tiny...

Deprecation Warning: The Pro Trinket bit-bang USB technique it uses doesn't work as well as it did in 2014, many modern computers won't work well. So while we still carry the Pro Trinket so that people can maintain some older projets, we no longer recommend it. Please check out the Metro Mini (ATmega328 @ 5V 16 MHz), ItsyBitsy 32u4 5V 16MHz, ItsyBitsy 32u4 @ 3.3V 8MHz or ItsyBitsy M0 @ 3V 48MHz. All have built-in USB and are comparable...

Pick up a copy of "Getting Started with Adafruit Trinket" and for a couple dollars more, hit the ground running with a Trinket 5V! As of October 12th, 2015 this product now ships with an Adafruit Trinket with a micro-USB plug. This pack is great for somebody starting out with microcontrollers to get them up and running quickly with this board, as well as for somebody with a more advanced grasp to give them some great projects to...

Deprecation Warning: The Trinket bit-bang USB technique it uses doesn't work as well as it did in 2014, many modern computers won't work well. So while we still carry the Trinket so that people can maintain some older projects, we no longer recommend it. Please check out the Trinket M0. It has built-in USB, more capabilities, and is comparable in price! Trinket may be small, but do not be fooled by its size! It's a tiny...

Deprecation Warning: The Pro Trinket bit-bang USB technique it uses doesn't work as well as it did in 2014, many modern computers won't work well. So while we still carry the Pro Trinket so that people can maintain some older projets, we no longer recommend it. Please check out the Metro Mini (ATmega328 @ 5V 16 MHz), ItsyBitsy 32u4 5V 16MHz, ItsyBitsy 32u4 @ 3.3V 8MHz or ItsyBitsy M0 @ 3V 48MHz. All have built-in USB and are comparable...

What's smaller than a Feather but larger than a Trinket? It's an ItsyBitsy! Small, powerful, Arduino-compatible - this microcontroller board is perfect when you want something very compact, but still with a bunch of pins. ItsyBitsy is only 1.4" long by 0.7" wide, but has 6 power pins, 6 analog & digital pins and 17 digital pins. It packs much of the same capability as an Arduino UNO. So it's great once you've...

Pickup a copy of Getting Started with Adafruit Trinket and then hit the ground running with one of the most popular Trinket projects: the Trinket-Powered NeoPixel Goggle Kit Pack! This pack is perfect for somebody who is up for a little challenge and eager to dive further into the wonderful world of Adafruit Trinket. This pack includes the Getting Started book and the entire Goggle Kit Pack: Getting Started with Adafruit Trinket6"...

The Arduino Pro Mini is SparkFun's minimal design approach to Arduino.  It's essentially a 5v Arduino that runs an 16 MHz bootloader on a super small, super thin board.  There are no connectors attached - allowing you to add whatever connectors or wire you want without too much trouble. The goal of the Pro Mini isn't to replace the Arduino so much as bring the cost down for more advanced users.  The Arduino...

Make your Arduino-based project tiny and with the Adafruit METRO Mini ! The METRO Mini works great with the Arduino IDE, and runs the ATmega328P at 16MHz so it is pin-compatible with Arduino UNO R3 - note you won't be able to plug in shields, but great for use with breadboards. You can use this with the Arduino IDE (both desktop and cloud version) by selecting 'Arduino UNO' in the Boards menu. We sure love the ATmega328 here at...

If you have an ItsyBitsy or Pro Trinket you probably know it's the perfect little size for a portable project. This LiPoly backpack makes it really easy to do! Instead of wiring 2 or 3 boards together to make a charging system, this little PCB sits on top of the PCB and allows a LiPoly/LiIon battery to plug in. When the Pro Trinket or ItsyBitsy USB port is powered, the battery is recharged automatically. Unplug the USB port and the...

What is better than smart RGB LEDs? Smart RGB+White LEDs! These NeoPixels now have 4 LEDs in them (red, green, blue and white) for excellent lighting effects. These LED strips are fun and glowy, and you can control each LED individually! This is the 144 LED/m RGBW strip with a White Casing and White PCB!  We also have RGBW NeoPixel strips of 30 LED/m and 60 LED/m. The NeoPixel is 'split', one half is the RGB you...

This is the  Adafruit METRO Arduino-Compatible - with headers.  It's a fully assembled and tested microcontroller and physical computing board with through-hole headers attached.  If you don't want a Metro with the headers attached for super-slimness, check out our Metro without Headers. The METRO works great with the Arduino IDE, and runs the ATmega328P at 16MHz so it is shape and pin-compatible with...

This is the easiest way possible to add small, bright RGB pixels to your project. We took the same technology from our Flora NeoPixels and made them breadboard friendly, with two rows of 3 x 0.1" spaced header on each side for easy soldering, chaining and breadboarding. These ultra-bright LEDs have a constant-current driver cooked right into the LED package! The pixels are chainable - so you only need 1 pin/wire to control as many LEDs as...

We sure love the ATmega328 here at Adafruit, and we use them  a lot  for our own projects. The processor has plenty of GPIO, Analog inputs, hardware UART SPI and I2C, timers and PWM galore - just enough for most simple projects. When we need to go small, we use a Metro Mini or a Trinket M0, but when size isn't as much of a concern, we reach for an Adafruit METRO. New! We've updated this product to our Adafruit Metro 328, a...

So thin. So mini. So teeeeeeny-tiny. It's the 'skinny' version of our classic NeoPixel strips! These NeoPixel strips have 144 digitally-addressable pixel Mini LEDs per meter and are very affordable and are only 7.5 mm wide (0.3") if you remove the strip from the casing.  This is the strip with white flex PCB, its identical to the black 144 LED/meter except it has a different color mask on the flex strip There are some...

These are the smallest NeoPixel breakouts around! Tiny, bright RGB pixels to your project. These little PCBs are only 8mm x 10mm and have two sets of three pads on the back for soldering wires. These ultra-bright LEDs have a constant-current driver cooked right into the LED package! The pixels are chainable - so you only need 1 pin/wire to control as many LEDs as you like. These pixels have full 24-bit color ability with PWM taken care of by the...

What is better than smart RGB LEDs? Smart RGB+White LEDs! These NeoPixels now have 4 LEDs in them (red, green, blue and white) for excellent lighting effects. Round and round and round they go!   This is the NeoPixel 1/4 60 LED Ring in Natural White . We have a ton of other NeoPixel rings in the store to check out! With four of these you can make a huge ring with 60 ultra bright smart LED NeoPixels are arranged in a circle with a...

You thought it couldn't get better than our world-famous 32-LED-per-meter Digital LED strip but we will prove you wrong! You wanted twice the LEDs ? We got it (well, its 1.875 times as many but that's within a margin of error). You wanted thinner strips ? Now only 12.5 mm wide, 10 mm if you remove the strip from the casing. You wanted less noticeable strip color - this strip has white-colored flex PCB, which will be less visible against...

What is better than smart RGB LEDs? Smart RGB+White LEDs! These NeoPixels now have 4 LEDs in them (red, green, blue and white) for excellent lighting effects. These LED strips are fun and glowy, and you can control each LED individually! This is the 30 LED/m RGBW strip with a White Casing and White PCB!  We also have RGBW NeoPixel strips of 60 LED/m and 144 LED/m. The NeoPixel is 'split', one half is the RGB you know...

What is better than smart RGB LEDs? Smart RGB+White LEDs! These NeoPixels now have 4 LEDs in them (red, green, blue and white) for excellent lighting effects. These LED strips are fun and glowy, and you can control each LED individually! This is the 60 LED/m RGBW strip with a clear casing and White flex PCB!  We also have RGBW NeoPixel strips of 30 LED/m and 144 LED/m. The NeoPixel is 'split', one half is the RGB you...

You thought it couldn't get better than our world-famous 32-LED-per-meter Digital LED strip but we will prove you wrong! These NeoPixel strips have 30 digitally-addressable pixel LEDs per meter and are very affordable and are only 12.5 mm wide, 10 mm if you remove the strip from the casing. This is the strip with white flex PCB, its identical to the black 30 LED/meter except it has a different color mask on the flex strip There are some...

What is better than smart RGB LEDs? Smart RGB+White LEDs! These NeoPixels now have 4 LEDs in them (red, green, blue and white) for excellent lighting effects. Round and round and round they go!   This is the NeoPixel 1/4 60 LED Ring in Warm White . We have a ton of other NeoPixel rings in the store to check out! With four of these you can make a huge ring with 60 ultra bright smart LED NeoPixels are arranged in a circle with a...

You thought it couldn't get better than our world-famous 32-LED-per-meter Digital LED strip but we will prove you wrong! You wanted twice the LEDs ? We got it (well, it's 1.875 times as many but that's within a margin of error). You wanted thinner strips ? Now only 12.5 mm wide, 10 mm if you remove the strip from the casing. You wanted less noticeable strip color - this strip has black-colored flex PCB, which will be less visible...

What is better than smart RGB LEDs? Smart RGB+White LEDs! These NeoPixels now have 4 LEDs in them (red, green, blue and white) for excellent lighting effects. Round and round and round they go!   This is the NeoPixel 1/4 60 LED Ring in Cool White . We have a ton of other NeoPixel rings in the store to check out! With four of these you can make a huge ring with 60 ultra bright smart LED NeoPixels are arranged in a circle with a...

These are the smallest NeoPixel breakouts around! Tiny, bright RGB pixels to your project. These little PCBs are only 9.1mm x 9.1mm and have two sets of three pads on the back for soldering wires. These ultra-bright LEDs have a constant-current driver cooked right into the LED package! The pixels are chainable - so you only need 1 pin/wire to control as many LEDs as you like. These pixels have full 24-bit color ability with PWM taken care of by...

We crammed ALL THE NEOPIXELS into this strip! An unbelievable 144 individually-controllable LED pixels on a flexible PCB. It's completely out of control and ready for you to blink. This strip has a white mask, and an extra heavy flex PCB. These LED strips are even more fun and glowy. There are 144 RGB LEDs per meter , and you can control each LED individually! Yes, that's right, this is the digitally-addressable type of LED strip. You...

You thought it couldn't get better than our world-famous 32-LED-per-meter Digital LED strip but we will prove you wrong! These NeoPixel strips have 30 digitally-addressable pixel LEDs per meter and are very affordable and are only 12.5 mm wide, 10 mm if you remove the strip from the casing. This is the strip with black flex PCB, its identical to the white 30 LED/meter except it has a different color mask on the flex strip There are some...

So thin. So mini. So teeeeeeny-tiny. It's the 'skinny' version of our classic NeoPixel strips! These NeoPixel strips have 144 digitally-addressable pixel Mini LEDs per meter and are very affordable and are only 7.5 mm wide (0.3") if you remove the strip from the casing.  This is the strip with black flex PCB, its identical to the white 144 LED/meter except it has a different color mask on the flex strip There are some...

We crammed ALL THE NEOPIXELS into this strip! An unbelievable 144 individually-controllable LED pixels on a flexible PCB. It's completely out of control and ready for you to blink. This strip has a black mask, and an extra heavy flex PCB. These LED strips are even more fun and glowy. There are 144 RGB LEDs per meter , and you can control each LED individually! Yes, that's right, this is the digitally-addressable type of LED strip. You...

So thin. So mini. So teeeeeeny-tiny. It's the 'skinny' version of our classic NeoPixel strips! These NeoPixel strips have 60 digitally-addressable pixel Mini LEDs per meter and are very affordable and are only 7.5 mm wide, 5 mm if you remove the strip from the casing.  This is the strip with white flex PCB, its identical to the black 60 LED/meter except it has a different color mask on the flex strip There are some things to...

What is better than smart RGB LEDs? Smart RGB+White LEDs! These NeoPixels now have 4 LEDs in them (red, green, blue and white) for excellent lighting effects. These LED strips are fun and glowy, and you can control each LED individually! This is the 60 LED/m RGBW strip with a clear casing and Black Flex PCB!  We also have RGBW NeoPixel strips of 30 LED/m and 144 LED/m. The NeoPixel is 'split', one half is the RGB you...

What is better than smart RGB LEDs? Smart RGB+White LEDs! These NeoPixels now have 4 LEDs in them (red, green, blue and white) for excellent lighting effects. These LED strips are fun and glowy, and you can control each LED individually! This is the 30 LED/m RGBW strip with a Clear Casing and Black Flex PCB!  We also have RGBW NeoPixel strips of 60 LED/m and 144 LED/m. The NeoPixel is 'split', one half is the RGB you...

So thin. So mini. So teeeeeeny-tiny. It's the 'skinny' version of our classic NeoPixel strips! These NeoPixel strips have 30 digitally-addressable pixel Mini LEDs per meter and are only 7.5mm wide, 5mm if you remove the strip from the casing.  This is the strip with black flex PCB, it's identical to the white 30 LED/meter except it has a different color mask on the flex strip There are some things to watch for:...

So thin. So mini. So teeeeeeny-tiny. It's the 'skinny' version of our classic NeoPixel strips! These NeoPixel strips have 60 digitally-addressable pixel Mini LEDs per meter and are very affordable and are only 7.5 mm wide, 5 mm if you remove the strip from the casing.  This is the strip with black flex PCB, its identical to the white 60 LED/meter except it has a different color mask on the flex strip There are some things to...

So thin. So mini. So teeeeeeny-tiny. It's the 'skinny' version of our classic NeoPixel strips! These NeoPixel strips have 30 digitally-addressable pixel Mini LEDs per meter and are very affordable and are only 7.5 mm wide, 5 mm if you remove the strip from the casing.  This is the strip with white flex PCB, its identical to the black 30 LED/meter except it has a different color mask on the flex strip There are some...

The Explorer HAT Pro is a terrific prototyping side-kick for your Raspberry Pi 2, B+, or A+! On the Explorer Pro from Pimoroni there are a heap of useful input and output options that will take your projects to the next level. Great for driving motors, using analog sensors, interfacing with 5V systems, and touch interfaces! Features : 4x buffered 5V tolerant inputs Hook up your Pi to accept input from 5V systems (like Arduino Uno/Leonardo or 5V...

You can't bake a cake without flour, sugar, and baking soda? Cream cheese? Muscadet? Ok - to be honest we don't do much cake baking.  But we do light up a TON of NeoPixel LED strips! They're everywhere - from our Firewalker LED Sneakers  to our FloraBrella - and we can't think of better essentials to get you started than this Adafruit NeoPixel LED Strip Starter Pack . This version has a one meter...

The Explorer pHAT is the perfect prototyping side-kick for your Raspberry Pi. Based on Pimoroni's popular Explorer Hat Pro, this is a smaller cheaper version designed to fit perfectly on a Raspberry Pi Zero! A heap of useful input and output options have been added that will take your projects to the next level. Great for driving motors, using analog sensors, and interfacing with 5V sensors & systems Though...

You can't bake a cake without flour, sugar, and baking soda? Cream cheese? Muscadet? Ok - to be honest we don't do much cake baking.  But we do light up a TON of NeoPixel LED strips! They're everywhere - from our Firewalker LED Sneakers  to our FloraBrella - and we can't think of better essentials to get you started than this Adafruit NeoPixel LED Strip Starter Pack . This version has a one meter...

A simple 2-pin connector that is compatible with the "JST PH 2-pin" connector - perfect for soldering to the bottom of our 3.3V Logic Trinket and 5V Logic Trinket! These mate perfectly with all our 1-cell LiPoly and LiIon batteries as well as our 6V coin cell holder and 3xAAA battery pack. We also have simple JST pigtails that mate with this connector. Note : This product might be black or tan.  We cannot control the color...

What's smaller than a Feather but larger than a Trinket? It's an Adafruit ItsyBitsy M4 Express featuring the Microchip ATSAMD51 ! Small, powerful, with a ultra fast ATSAMD51 Cortex M4 processor running at 120 MHz - this microcontroller board is perfect when you want something very compact, with a ton of horsepower and a bunch of pins. This Itsy is like a bullet train, with it's 120MHz Cortex M4 with floating point support and 512KB...

What's smaller than a Feather but larger than a Trinket? It's an Adafruit ItsyBitsy nRF52840 Express featuring the Nordic nRF52840 Bluetooth LE processor! Teensy & powerful, with an fast nRF52840 Cortex M4 processor running at 64 MHz and 1 MB of FLASH - this microcontroller board is perfect when you want something very compact, with a heap-load of memory and Bluetooth LE support This Itsy is your best option for tiny wireless...

Put on your sunglasses before wiring up this LED matrix - 64 eye-blistering RGB LEDs adorn the NeoMatrix for a blast of configurable color. Arranged in an 8x8 matrix, each pixel is individually addressable. Only one microcontroller pin is required to control all the LEDs, and you get 24 bit color for each LED. Wiring it up is easy: there are two 3-pin connection ports. Solder wires to the input port and provide 5VDC to the +5V and ground pins,...

What's smaller than a Feather but larger than a Trinket? It's an Itsy Bitsy! Small, powerful, Arduino-compatible - this microcontroller board is perfect when you want something very compact, but still with a bunch of pins. Itsy Bitsy is only 1.4" long by 0.7" wide, but has 6 power pins, 6 analog & digital pins and 17 digital pins. It packs much of the same capability as an Arduino UNO or Feather 32u4. So it's great once...

LOLwut? NeoPixels in 5mm through-hole variety? Oh yes, we haz them! If you like NeoPixel strips you'll luv these 5mm diffused through-hole NeoPixels. All the single-pin-controlling-hundreds-of-LEDs goodness in a breadboard friendly format. Each LED looks just like a shorter version of the classic through-hole 5mm RGB LED with 4 legs, but instead of just red/green/blue there's a little chip inside that can control the LED with high speed...

LOLwut? NeoPixels in through-hole variety? Oh yes, we haz them! If you like NeoPixel strips you'll luv these 8mm diffused through-hole NeoPixels. All the single-pin-controlling-hundreds-of-LEDs goodness in a breadboard friendly format. Each LED looks just like your classic through-hole 8mm RGB LED with 4 legs, but instead of just red/green/blue there's a little chip inside that can control the LED with high speed PWM for 24-bit color....

Put on your sunglasses before putting this shield onto your 'duino - 40 eye-blistering RGB LEDs adorn the NeoPixel shield for a blast of configurable color. Arranged in a 5x8 matrix, each pixel is individually addressable. Only one pin (Digital #6) is required to control all the LEDs. You can cut a trace and use nearly any other pin if you need some customization. To make it easy to start, the LEDs are by default powered from the 5V onboard...

Put on your sunglasses before wiring up this LED matrix - 64 eye-blistering RGBW LEDs adorn the NeoMatrix for a blast of configurable color  and  white. Arranged in an 8x8 matrix, each pixel is individually addressable. Only one microcontroller pin is required to control all the LEDs, and you get 24 bit color for each LED. This is the Warm White RGBW version.  We also have this NeoMatrix in Natural White, Cool White,...

We have all sorts of LED strips for a wide range of needs. Chonky strips? We got those! Strips with alligator clips that are easy-peasy to MakeCode? Oh definitely. Weatherproof? We have a gamut of options. Now we have some Honey I Shrunk the LED Strips in the store. At an astonishing 4mm width these are wee yet surprisingly flexible and can fit just about anywhere. The wires are even nicely color-coded: black for ground, green for...

A Feather board without ambition is a Feather board without FeatherWings! This is the  NeoPixel FeatherWing, a 4x8 RGB LED Add-on For All Feather Boards ! Using our Feather Stacking Headers or Feather Female Headers you can connect a FeatherWing on top or bottom of your Feather board and make your Feather board strut like a peacock at a rave. Put on your sunglasses before staring into these 32 configurable...

You love NeoPixels, and you love silicone diffusion? Peep this  Flexible Silicone Neon-like Skinny NeoPixel LED Strip ! OK it's a bit of a mouthful, but check out the beautiful footage! It  looks  a lot like a slim strip of neon, but without the need for expensive transformers, glass tubing, inert gasses, or a Las Vegas casino license. They look incredible, are super easy to use, and are a great way to make your projects...

Put on your sunglasses before wiring up this LED matrix - 64 eye-blistering RGBW LEDs adorn the NeoMatrix for a blast of configurable color  and  white. Arranged in an 8x8 matrix, each pixel is individually addressable. Only one microcontroller pin is required to control all the LEDs, and you get 24 bit color for each LED. This is the Cool White RGBW version. We also have this NeoMatrix in Natural...

Put on your sunglasses before wiring up this LED matrix - 64 eye-blistering RGBW LEDs adorn the NeoMatrix for a blast of configurable color and  white. Arranged in an 8x8 matrix, each pixel is individually addressable. Only one microcontroller pin is required to control all the LEDs, and you get 24 bit color for each LED. This is the Natural White RGBW version.   We also have this NeoMatrix in Warm White, Cool White, and good ole'...

Put on your sunglasses before putting this shield onto your 'duino - 40 eye-blistering RGBW LEDs adorn the NeoPixel shield for a blast of configurable color. Arranged in a 5x8 matrix, each pixel is individually addressable. Only one pin (Digital #6) is required to control all the LEDs. You can cut a trace and use nearly any other pin if you need some customization. This is the Warm White RGBW version.  We also have this NeoPixel...

Put on your sunglasses before putting this shield onto your 'duino - 40 eye-blistering RGBW LEDs adorn the NeoPixel shield for a blast of configurable color. Arranged in a 5x8 matrix, each pixel is individually addressable. Only one pin (Digital #6) is required to control all the LEDs. You can cut a trace and use nearly any other pin if you need some customization. This is the Cool White RGBW version.   We also have this NeoPixel...

Put on your sunglasses before putting this shield onto your 'duino - 40 eye-blistering RGBW LEDs adorn the NeoPixel shield for a blast of configurable color. Arranged in a 5x8 matrix, each pixel is individually addressable. Only one pin (Digital #6) is required to control all the LEDs. You can cut a trace and use nearly any other pin if you need some customization. This is the Natural White RGBW version.  We also have this NeoPixel...

Put on your sunglasses before putting this shield onto your 'duino - 40 eye-blistering RGB and RGBW LEDs adorn the NeoPixel shield for a blast of configurable color. Arranged in a 5x8 matrix, each pixel is individually addressable. Only one pin (Digital #6) is required to control all the LEDs. You can cut a trace and use nearly any other pin if you need some customization. To make it easy to start, the LEDs are by default powered from the 5V...

Put on your sunglasses before wiring up this LED matrix - 64 eye-blistering RGB or RGBW LEDs adorn the NeoMatrix for a blast of configurable color and white. Arranged in an 8x8 matrix, each pixel is individually addressable. Only one microcontroller pin is required to control all the LEDs, and you get 24 or 32 bit color for each LED. Lit up these are insanely bright (like ow my eye hurts) and can be controlled with built-in 8-bit PWM...

We're no longer selling this pack of Trinket 3V+5V, we recommend our Trinket M0 which has better USB support, way faster processor, a ton more memory and CircuitPython support!   Be the life of your (hackerspace) party when you show up with this six-pack! Get 6 Trinkets at 12% off - comes with 3 x 3V Trinkets, and 3 x 5V Trinkets.   As of October 12th, 2015 the 6-pack now includes three revised 3V Trinkets and three revised 5V...

We're no longer selling this pack of Pro Trinket 3V+5V, we recommend our Metro Mini (5V 328P with USB-Serial Converter), Feather 328P (3.3V 328P with USB-Serial and LiPo charger), ItsyBitsy 32u4 (Available in both 3.3V and 5V) and the ItsyBitsy M0. The Metro Mini and Feather 328p both use the same ATmega328P chip, but come with a real USB-serial converter chip. The ItsyBitsy boards have 'native' USB and are almost the same size. None...

The Explorer HAT is a terrific prototyping side-kick for your Raspberry Pi 2, B+, or A+! On the Explorer from Pimoroni there are a heap of useful input and output options that will take your projects to the next level. Great for driving motors, using analog sensors, interfacing with 5V systems, and touch interfaces! Features: 4x buffered 5V tolerant inputs Hook up your Pi to accept input from 5V systems (like Arduino Uno/Leonardo or 5V...

LOLwut? NeoPixels in 5mm through-hole variety? Oh yes, we haz them! If you like NeoPixel strips you'll luv these 5mm clear through-hole NeoPixels. All the single-pin-controlling-hundreds-of-LEDs goodness in a breadboard friendly format. Each LED looks just like a shorter version of the classic through-hole 5mm RGB LED with 4 legs, but instead of just red/green/blue there's a little chip inside that can control the LED with high speed PWM...