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1/4W Resistor Pack -2000 PCS
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Price: $26.81
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DFRobot Item #: FIT0119 -

It comes with 20 of each value: 1R 1.2R 1.5R 1.8R 2R 2.2R 2.7R 3R 3.3R 3.9R 4.7R 5.1R 6.2R 6.8R 8.2R 10R 12R 15R 18R 20R 22R 27R 30R 33R 39R 47R 51R 62R 68R 82R 100R 120R 150R 180R 200R 220R 270R 300R 330R 390R 470R 510R 620R 680R 820R 1K 1.2K 1.5K 1.8K 2K 2.2K 2.7K 3K 3.3K 3.9K 4.7K 5.1K 6.2K 6.8K 8.2K 10K 12K 15K 18K 20K 22K 27K 30K 33K 39K 47K 51K 62K 68K 82K 100K 120K 150K 180K 200K 220K 270K 300K 330K 390K 470K 510K 620K 680K 820K 1M 1.2M 1.5M 1.8M 2M 2.2M 3.3M 3.9M 4.7M 5.1MNOTE: As this...

10 Segment LED Bar Graph - Blue
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Price: $2.98
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Sparkfun Item #: COM-09937 -

"These 10 segment bar graph LEDs have many uses. With a compact footprint, simple hookup, they are easy for prototyping or finished products. Essentially, they are 10 individual blue LEDs housed together, each with an individual anode and cathode connection. We also carry these in yellow, red, and green. Note: The pinout on these bar graphs may vary from what is listed on the datasheet. Rotating the device 180 degrees will correct the change making pin 11 the first pin in line. We have...

10 Segment LED Bar Graph - Green
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Price: $2.98
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Sparkfun Item #: COM-09938 -

"These 10 segment bar graph LEDs have many uses. With a compact footprint, simple hookup, they are easy for prototyping or finished products. Essentially, they are 10 individual green LEDs housed together, each with an individual anode and cathode connection. We also carry these in yellow, blue, and red. Note: The pinout on these bar graphs may vary from what is listed on the datasheet. Rotating the device 180 degrees will correct the change making pin 11 the first pin in line. We have...

10 Segment LED Bar Graph - Yellow
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Price: $2.98
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Sparkfun Item #: COM-09936 -

"These 10 segment bar graph LEDs have many uses. With a compact footprint, simple hookup, they are easy for prototyping or finished products. Essentially, they are 10 individual yellow LEDs housed together, each with an individual anode and cathode connection. We also carry these in red, blue, and green. Note: The pinout on these bar graphs may vary from what is listed on the datasheet. Rotating the device 180 degrees will correct the change making pin 11 the first pin in line. We have...

10W Super Bright LED - RGB
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Price: $17.07
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DFRobot Item #: FIT0381 -

This 10W super bright LED can be used as a flash searchlight for your robot projects. It consists of 9 separate LEDs and has a luminance of 500LM. Comes in various colors.Warning : If you use the full power, LED will be very hot. Please use Heat Sink to cool it down.|Specification| Rated Power: 10W Luminance: Red: 110, Green: 165, Blue: 45 Working Voltage: Red: 6V-7V, Green: 9V-11V, Blue: 9V-11V?With Heat Sink) Red: 5V-5.5V, Green:7.5V-8.5V, Blue:7.5V-8.5V?Without Heat Sink) Rated Current:...

10W Super Bright LED - Violet
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Price: $11.89
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DFRobot Item #: FIT0383 -

This 10W super bright LED can be used as a flash searchlight for your robot projects. It consists of 9 separate LEDs and has a luminance of 250LM. Comes in various colors.Warning : If you use the full power, LED will be very hot. Please use Heat Sink to cool it down.|Specification| Rated Power: 10W Luminance: 200-250LM Wave Length: 420-435NM Working Voltage : 9V-11V?With Heat Sink); 7.5V-8.5V?Without Heat Sink? Rated Current: Red: 1000mA Color Temperature: 3000K-4000K Angle: 120&;deg; Working...

10W Super Bright LED - Warm White with 60 Degrees Lens
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Price: $11.89
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DFRobot Item #: FIT0380 -

This 10W super bright LED can be used as a flash searchlight for your robot projects. It consists of 9 separate LEDs and has a luminance of 500LM. The 60 degrees lens for focusing the light. Comes in various colors.Warning : If you use the full power, LED will be very hot. Please use Heat Sink to cool it down.|Specification| Rated Power: 10W Luminance: 500LM Working Voltage : 9V-11V?With Heat Sink); 7.5V-8.5V?Without Heat Sink? Rated Current: 1000mA Color Temperature: 3000K-4000K Angle:...

3MM Infrared Emitter (5pcs Pack)
Price: $0.66
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Elecrow Item #: EL-COI03474E -

    3MM infrared emitter for remote controllers, please download the detailed specification Here. Specification Wavelength: 940 nm Max infrared power : 100 mW/sr Angle: <30 degree Forward voltage: 0.9~1.3V Soldering Temperature: < 260?C/<5s Life: > 80,000h ...

3W Infrared lamp for Raspberry Pi Camera
Price: $21.32
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Elecrow Item #: EL-RPA22070P -

This is a designed wide angle photographic infrared light for the Raspberry Pi camera use, through which you can capture images, photographs and video during the night to complete the purpose in poor lighting situations with the camera. It is very cheap and powerful performance. Precautions: Raspberry Pi power is limited, when the external 3W high-power light sensitive work, there will be varying degrees of fever phenomenon (you could add a external heat sink). Objects within three meters...

48mm Square 8*8 LED Matrix - Super Bright RGB
Price: $16.22
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Elecrow Item #: EL-MAT04808A -

    This is an awesome large sized RGB LED Matrix with superbright and beautiful performance.It has 64 5mm circle-dot and it's perfectly compatible with our Rainbow shield V1.0. For more details, please refer to the datasheet. Specification Dot Size: 5.0mmPixel Array: 8?8Dimension: 48mm?48mmReverse Voltage(Max): 5V Forward Current(Max) : 20mAPeak Forward Current(Max): 60mAPower Dissipation(any seg): 40mWOperating Temperature(Max): -10~+80??/li>Storage Temperature(Max):...

50pcs DC12V 12mm WS2811 Pixel Node Smart LED
Price: $41.38
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Elecrow Item #: EL-DLD10012W -

look at these colorful LEDs, what a beautiful visual experience! Let?s think about what can make by using it. Signs or advertising screen ? May be more wide range of applications! Let your imagination fly and create more wonderful things. The led adopts perfect optical design, big view angle, waterproof, high brightness and light transmittance, energy saving and environmental friendly. It can be cut each one, easy to operate and repair. Features Adpots high quality  round hat RGB LED as...

5mm Triple Output LED RGB - Common Anode(5Pcs)
Price: $1.82
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Elecrow Item #: EL-CLC51351A -

    This pack contains 5 units of 5mm RGB LED - Common Anode.           ...

60mm Square 8*8 LED Matrix - Super Bright RGB(CIRCLE-DOT)
Price: $13.24
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Elecrow Item #: EL-MAT06008A -

    This is an awesome large sized RGB LED Matrix with superbright and beautiful performance.It has 64 3.6mm circle-dot. For more details, please refer to the datasheet. Can be drivered by Elecrow Rainbow Shield.      Specification Dot Size: 5.0mm Pixel Array: 8x 8 Dimension: 60mmx 60mm Reverse Voltage(Max): 5V Forward Current(Max) : 20mA Peak Forward Current(Max): 60mA Power Dissipation(any seg): 40mW Operating Temperature(Max): -10~+80 Degree Lead...

64x64 RGB LED Matrix Panel (3mm pitch)
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Price: $118.95
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DFRobot Item #: DFR0499 -

City night is always beautiful. She is just like a charming girl, showing her beauty every time. The colorful light is jewelry, dotted on her dress.This is a 64x64 RGB LED Matrix Panel, it has 4096 full-color RGB LEDs in all. Each LED can be independently addressed and controlled. It requires at least 13 digital GPIOs to control the LED matrix. So the UNO board won’t be a good choice in this application, recommended Mega 2560, Raspberry Pi and the other kinds of microcontroller with...

7 Segment LED Keypad Shield For Arduino
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Price: $15.34
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DFRobot Item #: DFR0382 -

This 7 segment LED Keypad Shield is an Arduino LCD Shield with a 4 digit 7 segment digital tube display (common cathode). It has 5 buttons that can be used as menu select buttons or control buttons, using I2C to drive the digital tube for an easy user experience.|Specification| Arduino compatible Working voltage: 5V 4 digit 8 segment common cathode digital tube (0.56 inch) 5 input buttons (Driving pin: A0) Size: 53 * 54mm/2.05 * 2.12inches|Documents| Product Wiki More Resource |ShippingList| 7...

8*8 LED 7-color Matrix
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Price: $68.78
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DFRobot Item #: DFR0202 -

A dot matrix display is a display device used to display information on machines, clocks, railway departure indicators and many other devices requiring a simple display device of limited resolution. Even if the 8x8 RGB led dot matrix is commonly used in lots of applications, but it require too much digital pins to drive it. And the software is too complex also. The 8x8 LED RGB matrix module aimed to solve these problems.Directly drive the 8x8 RGB matrix module via the SPI serial interface. It...

8x8 RGB LED Matrix
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Price: $65.80
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DFRobot Item #: DFR0459 -

The 8x8 RGB LED Matrix! This module is a square panel with a XH2.54 3-pin interface.This 8x8 RGB full-color LED matrix module is based on WS2812 intelligent control LEDs. Each LED can be independently addressed with RGB pixels that can achieve 256 levels of brightness. That’s 16777216 colors in total with a scanning frequency no less than 400Hz!The 8x8 RGB LED Matrix is single wire control board. The module also supports cascading control. All you need to do is connect Din to the DOUT...

BlinkM - I2C Controlled RGB LED
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Price: $17.87
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Sparkfun Item #: COM-08579 -

"BlinkM is a “Smart LED”, a networkable and programmable full-color RGB LED for hobbyists, industrial designers, prototypers, and experimenters. It is designed to allow the easy addition of dynamic indicators, displays, and lighting to existing or new projects. If you’ve used up all your microcontroller PWM channels controlling RGB LEDs and still want more, BlinkM is for you. BlinkM uses a high quality, high power RGB LED and a small AVR microcontroller to allow a user to...

BlinkM MaxM - I2C Controlled RGB LED
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Price: $34.47
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Sparkfun Item #: COM-09000 -

"If you used BlinkM and you thought it was good, but needed something to temporarily blind your enemy, the MaxM is what you need. Three large 10mm LEDs combine the forces of 15 individual LED cores to create a flood of RGB light. BlinkM MaxM is an intensely-bright smart LED for prototyping that comes as a package of two components, a control module (MaxM Master) and a daughter board with three ultrabright LEDs (MaxM Blaster). MaxM Master runs a unique firmware that creates virtually any RGB...

Build Upons LED - PTH (10 Pack)
Price: $11.49
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Sparkfun Item #: COM-13312 -

"There are LEDs and then there are Build Upons LEDs. Each Build Upons PTH LED in this 10 pack are brick shaped in the same form of your favorite construction block! These LEDs can be easily used as novelty indicator lights, or ground effects for your existing brick sets as the tops of each LED is compatible with LEGO® bricks. The Build Upons pack contains two diffused PTH LEDs of red, blue, yellow, green, and white. Each LED (minus the leads) are the exact same size as a LEGO® 1x1...

Diffused 5mm LED Pack (50 pcs)
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Price: $5.86
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DFRobot Item #: FIT0372 -

Have you ever played with LEDs and got hurt in your eyes? This pack of diffused LEDs won't. !Diffused LEDs are really useful in indications, they look softer and more uniformed so that you can see them well from any angle.This pack includes 50 5mm LEDs in 5 different colors: green, red, yellow, blue and white. It is ideal for your phototyping projects. Get this package of all most common color LEDs for your next project. Very handy for experiments and home cooked circuit board. Note: The...

Digital piranha LED module-Yellow
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Price: $7.29
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DFRobot Item #: DFR0031-Y -

Piranha LED light module, and special sensors Arduino board and ambient light sensor extension combination, can be used in the interaction with the light works.When the LED light module connected to Arduino, the digital pin (LOW on, HIGH off) is used to control it. The brightness of LED can be controller via PWM output. The LED has four colors Red/Blue/Whilt/Yellow to select.|Specification| Voltage: +3.3-5V Pin Definition :1 - control 2 -GND 3 --- Power Weight: 5g Color:Yellow|ShippingList|...

Digital RGB LED Strip 180 LED - (3m)(weatherproof)
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Price: $119.81
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DFRobot Item #: FIT0352 -

LED Strips always glow nicely in the dark and are super fun to play with. They can be used in home decorations, festives and interactive art installations. For example this Christmas someone put a phone-controlled strip around the Christmas tree for S.O., and it looked great! This Digital RGB Strip is a intelligent control LED light source that the control circuit and RGB chip are integrated in a package of 5050 components. There are 60 RGB LEDs per meter, and you can control each LED...

Digital RGB LED Weatherproof Strip 60 LED - (1m)
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Price: $39.73
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DFRobot Item #: FIT0356 -

LED Strips always glow nicely in the dark and are super fun to play with. They can be used in home decorations, festives and interactive art installations. For example, decorating a BLE-controlled strip around the tree for X'mas. (Instructables)This Digital RGB Strip is a intelligent control LED light source that the control circuit and RGB chip are integrated in a package of 5050 components. There are 60 RGB LEDs per meter, and you can control each LED individually. It internal include...

EL Inverter - 3v
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Price: $12.77
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Sparkfun Item #: COM-10201 -

"EL inverters allow you to drive EL wires. This particular EL inverter accepts 3V input and outputs 110VAC to drive EL wire. The wires both terminated with JST PH connectors. These are designed to plug directly into our EL Escudo or EL Sequencer. You can drive EL wires with them directly, but you may need to re-terminate them. These work well because they accept anywhere from 2.7-4.2V, so you can use them with batteries quite easily. Note: The inverters that we are currently shipping are not...

FadeCandy NeoPixel Driver - USB-Controlled Dithering
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Price: $35.74
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Sparkfun Item #: COM-12821 -

"This is the FadeCandy from Adafruit, a USB controlled LED driver with on-board dithering to help illuminate your Neopixel project. Even though the FadeCandy was designed to be used alongside of the NeoPixel Line the driver also works with most WS2811/12 LEDs. This little board has been designed to help both beginners and the advanced LED techie! Eight outputs line the bottom of the FadeCandy to provide you with a way to support up to 512 LEDs total assigned to each output in eight strips of...

FemtoBuck LED Driver
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Price: $9.14
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Sparkfun Item #: COM-13716 -

"This is the FemtoBuck, a small-size single-output constant current LED driver. Each FemtoBuck has the capability to dim a single high-power channel of LEDs from 0-350mA at up to 36V while the dimming control can be either accessed via PWM or analog signal from 0-2.5V. This board is based off of the PicoBuck LED Driver, developed in collaboration with Ethan Zonca, except instead of blending three different LEDs on three different channels the FemtoBuck controls just one. For the FemtoBuck,...

FireBeetle Covers-24x8 LED Matrix (Blue)
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Price: $25.86
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DFRobot Item #: DFR0485 -

DFRobot FireBeetle is a low-power consumption micro-controller intentionally designed for Internet of Things (IoT). This series micro-controllers aims at IoT node of low-power consumption, attending to build the IoT hardware platform quickly and conveniently. There are three types of FireBeetle, containing Boards (main control), Covers (expansion boards) and related Accessories. This 24×8 LED Matrix display is special designed for FireBeetle series. It supports low-power consumption mode...

FireBeetle Covers-24x8 LED Matrix (Green)
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Price: $25.86
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DFRobot Item #: DFR0468 -

DFRobot FireBeetle is a low-power consumption micro-controller intentionally designed for Internet of Things (IoT). This series micro-controllers aims at IoT node of low-power consumption, attending to build the IoT hardware platform quickly and conveniently. There are three types of FireBeetle, containing Boards (main control), Covers (expansion boards) and related Accessories. This 24×8 LED Matrix display is special designed for FireBeetle series. It supports low-power consumption mode...

FireBeetle Covers-24x8 LED Matrix (Red)
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Price: $25.86
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DFRobot Item #: DFR0488 -

DFRobot FireBeetle is a low-power consumption micro-controller intentionally designed for Internet of Things (IoT). This series micro-controllers aims at IoT node of low-power consumption, attending to build the IoT hardware platform quickly and conveniently. There are three types of FireBeetle, containing Boards (main control), Covers (expansion boards) and related Accessories. This 24×8 LED Matrix display is special designed for FireBeetle series. It supports low-power consumption mode...

FireBeetle Covers-24x8 LED Matrix (White)
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Price: $25.86
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DFRobot Item #: DFR0484 -

DFRobot FireBeetle is a low-power consumption micro-controller intentionally designed for Internet of Things (IoT). This series micro-controllers aims at IoT node of low-power consumption, attending to build the IoT hardware platform quickly and conveniently. There are three types of FireBeetle, containing Boards (main control), Covers (expansion boards) and related Accessories. This 24×8 LED Matrix display is special designed for FireBeetle series. It supports low-power consumption mode...

FireBeetle Covers-24x8 LED Matrix (Yellow)
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Price: $25.86
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DFRobot Item #: DFR0487 -

DFRobot FireBeetle is a low-power consumption micro-controller intentionally designed for Internet of Things (IoT). This series micro-controllers aims at IoT node of low-power consumption, attending to build the IoT hardware platform quickly and conveniently. There are three types of FireBeetle, containing Boards (main control), Covers (expansion boards) and related Accessories. This 24×8 LED Matrix display is special designed for FireBeetle series. It supports low-power consumption mode...

Flexible LED Matrix - WS2812B (8x32 Pixel)
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Price: $148.93
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Sparkfun Item #: COM-13304 -

"This large 8x32 pixel WS2812B flexible LED matrix is a great way to add an impressive amount of color while still being able to individually control each LED. We aren’t kidding around, that’s 256 individually addressable LEDs on a 320mm x 90mm flexible panel. You can create animations, games, or even incorporate them into a fun e-textiles project. On top of all that, thanks to its flexible backing, this LED Matrix can be bent and bowed to fit onto almost any curvy surface. These...

Gravity: Analog Flame Sensor For Arduino
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Price: $6.90
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DFRobot Item #: DFR0076 -

This Arduino flame sensor can be used to detect fire or other wavelength at 760 nm ~ 1100 nm light. In the fire-fighting robot game, the flame plays an important role in the probe, which can be used as the robot's eyes to find fire source or football. It can make use of fire-fighting robots, soccer robots. The Flame sensor has probe angle of 60 degrees, two M3 mounting holes is provided to install on various platforms. This arduino flame sensor's operating temperature is -25 degrees Celsius to...

Gravity: Bright LED Module
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Price: $4.31
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DFRobot Item #: DFR0438 -

The Bright LED module is designed for some special application. It&;#39;s using a very bright LED component as its light source. Compatible with DFRobot gravity 3-Pin interface, plug and play. What you need is just a digital signal, you can drive it directly. Besides, the LED is so bright that do not stare at the LED in case of any eye damaging!|Specification| Operating Voltage: 5VDC Opearting Current: 20mA (Max) Dimension: 30*22(mm)/ 1.18&;rdquo;*0.87&;rdquo;(in)|Documents| Product WIKI More...

Gravity: Digital Blue LED Light Module
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Price: $2.93
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DFRobot Item #: DFR0021-B -

This Blue LED light module has a shiny white color. It is ideal for Arduino starters. This module can be easy to be plugged on IO/Sensor expansion shield. NOTE: This LED is wired to light up when the Signal pin is set to low. The reason for this is to prevent the LED from demanding too much current from the microcontroller and damaging the I/O. If you wish to make this LED light up with a logic high, you can switch the Signal wire (Green) with the GND wire (Black) and the Voltage wire (Red) to...

Gravity: Digital Colorful Flashing LED Module
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Price: $3.36
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DFRobot Item #: DFR0474 -

Gravity Colorful LED is an LED twinkles with seven colors--the colors of rainbow.It is easy to light up the LED. Turn on the power, then the LED will light up without programming. The built-in controller controls the colors and duration randomly, which makes it shine like a colorful star. Moreover, the module supports cascade control, only one interface can control all LEDs. Gravity Colorful LED, simple but romantic, modest but tasteful. It is really an ideal light to create relaxed and...

Gravity: Digital Green LED Light Module
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Price: $2.93
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DFRobot Item #: DFR0021-G -

This green LED light module has a shiny white color. It is ideal for Arduino starter. This module can be easy to be plugged on IO/Sensor expansion shield. NOTE: This LED is wired to light up when the Signal pin is set to low. The reason for this is to prevent the LED from demanding too much current from the microcontroller and damaging the I/O. If you wish to make this LED light up with a logic high, you can switch the Signal wire (Green) with the GND wire (Black) and the Voltage wire (Red) to...

Gravity: Digital LED String Lights (Colorful) For Arduino
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Price: $17.07
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DFRobot Item #: DFR0439 -

These LED string lights are composed of a series of LEDs that have a colorful glow. They can be used as decorations and for other interesting applications. Use them as outdoor string lights, string lights in your bedroom, on your patio or on a globe. There are many applications, what can you think of? Note: Use the provided adapter to power the string to avoid risk of damage.To ease the difficult of using this sensor, a Gravity Interface is adapted to allow plug&play. The IO expansion shield...

Gravity: Digital Piranha LED Module-White
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Price: $4.48
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DFRobot Item #: DFR0031-W -

Piranha LED light module, and special sensors Arduino board and ambient light sensor extension combination, can be used in the interaction with the light works.When the LED light module connected to Arduino, the digital pin (LOW on, HIGH off) is used to control it. The brightness of LED can be controller via PWM output. |Specification| Voltage: +3.3-5V Pin Definition :1 - control 2 -GND 3 --- Power Weight: 5g|ShippingList| LED light module x1 Digital Cable (SKU:FIT0011) x1 ...

Gravity: Flexible 16x16 RGB LED Matrix
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Price: $136.18
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DFRobot Item #: DFR0463 -

Good news! There is a new member in to the Gravity family - The Flexible 16x16 RGB LED Matrix! This module is a square panel with a soldered XH2.54 3-pin interface with pin mappings that perfectly match the Arduino I/O expansion shield.This flexible 16x16 RGB full-color LED matrix module is based on WS2812 or SK6812 intelligent control LEDs. Each LED can be independently addressed with RGB pixels that can achieve 256 levels of brightness. That’s 16777216 colors in total with a scanning...

Gravity:DIGITAL IR Transmitter Module
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Price: $6.72
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DFRobot Item #: DFR0095 -

An infrared transmitter is simply a Light Emitting Diode which generates IR light (invisible IR light)--light with a wavelength of between 1 mm and 750 nanometers, and some associated circuitry. In an infrared remote control, for example, pushing a button sends an electric signal to the LED, which converts the signal into a beam of infrared light. The receiving device detects the light with a photo diode and converts it to an electrical signal which, via an integrated circuit, controls its...

Gravity:Digital Piranha LED Module - Green
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Price: $4.48
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DFRobot Item #: DFR0031-G -

This is a Piranha LED light module. A digital pin (LOW on, HIGH off) is used to control it. The brightness of LED can be controller via PWM output. |Applications| DIY Projects Toys Games Audio indicator |Specification| Voltage: 3.3~5v Light color: Green High luminous output Luminous Intensity? 2500-3300mcd Wavelength: 520-530nm Compatible with IO Expansion shield Viewing angle: 80-110&;deg; Size: 30x20mm(1.18"x0.79") Weight: 5g Pin Definition Digital control pin (PWM) Power Supply GND...

Gravity:Digital piranha LED module-Blue
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Price: $7.29
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DFRobot Item #: DFR0031-B -

Piranha LED light module (Blue) , and special sensors Arduino board and ambient light sensor extension combination, can be used in the interaction with the light works.When the LED light module connected to Arduino, the digital pin (LOW on, HIGH off) is used to control it. The brightness of LED can be controller via PWM output. |Specification| Voltage: +3.3-5V Pin Definition :1 - control 2 -GND 3 --- Power Weight: 5g Color:Blue|ShippingList| LED light module-Blue x1 Digital Cable(SKU:FIT0011)...

Gravity:Digital Piranha LED Module-Red
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Price: $4.48
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DFRobot Item #: DFR0031-R -

Piranha LED light module (Red), and special sensors Arduino board and ambient light sensor extension combination, can be used in the interaction with the light works. When the LED light module connected to Arduino, the digital pin (LOW on, HIGH off) is used to control it. The brightness of LED can be controller via PWM output. |Specification| Voltage: +3.3-5V Pin Definition :1 - control 2 -GND 3 --- Power Weight: 5g Color:Red|ShippingList| LED light module-Red x1 Digital Cable (SKU:FIT0011) x1 ...

Gravity:Digital RED LED Light Module
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Price: $2.93
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DFRobot Item #: DFR0021-R -

This red LED light module has a shiny white color. It is ideal for Arduino starter. This module can be easy to be plugged on IO/Sensor expansion shield. NOTE: This LED is wired to light up when the Signal pin is set to low. The reason for this is to prevent the LED from demanding too much current from the microcontroller and damaging the I/O. If you wish to make this LED light up with a logic high, you can switch the Signal wire (Green) with the GND wire (Black) and the Voltage wire (Red) to...

Gravity:Digital White LED Light Module
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Price: $2.93
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DFRobot Item #: DFR0021-W -

This white LED light module has a shiny white color. It is ideal for Arduino starter. This module can be easy to be plugged on IO/Sensor expansion shield. |Specification| Type:Digital LED light module pin definition : (1) control terminal (2) power supply (3) ground|ShippingList| Sensor x1 Digital Sensor Cable (SKU:FIT0011? x1 ...

I2C 0.96" OLED 128x64- Blue
Price: $21.85
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Elecrow Item #: EL-DO1286496BY -

     This OLED display module is small, only 0.96? diagonal, it is made of 128x64 individual blue OLED pixels, each one is turn on or off by the controller chip. It works without backlight, that is, in a dark environment, OLED display is higher compared to that of LCD display, you will like the miniature for its crispness. This module uses I2C to communicate with microcontroller such as Arduino.  Features Diagonal Screen Size?0.96" Number of Pixels?128 x 64 Color...