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The RF Explorer protection boot is a custom designed、high quality flexible silicone rubber shield to save your device from scratches、dings、or other nicks caused by dropping and other mishaps. The material is strong enough to withstand this type of damage while retaining its flexibility and soft、silky exterior.。Features：High quality silicone rubber、protect RF Explorer from scratches。Easy to assemble/disassemble in/off the device。Custom designed for RF Explorer、all input ports and holes accessible。Robust bottom design、allow RF Explorer to stand vertical。Compatible with RF Explorer Holder。Size：122x78x30mm。Weight：62 grams。Part List：1×RF Explorer Protection Boot(Black)

2WD Arduino compatible mobile robot development platform。2 high-quality micro-speed motor。Tough aluminium body with mounting holes。Variety of sensors can be added。This a well designed、Arduino compatible mobile robot development platform、you

Introduction：This Kit is a great choice for learning robotics、electronics and Arduino programming. It contains mechanical parts and electronic modules for you to start exploring the robot world、it can be used to build a robot tank or a three-wheel rob

The intellegent Matrix is a 8x16(128)array of smart RGB pixels that can be controlled from a single microcontroller pin!。Features。Super bright 24-bit RGB color(not multiplexed)。Expandable -- make larger arrays by stacking multiple boards ho

This quality EVA case is the perfect companion for your RF Explorer unit.。It will protect your device and has enough room for your antennae.。Size：15×11.5×7 cm(5.9×4.5×2.7 inch)

AERobot(Affordable Education Robot)is a simple low-cost robot for introductory programming and robotics education. It provides a wide range of sensors and abilities、controlled by an intuitive graphical programming environment、all for a fraction of the cost of other educational robots.。AERobot is intended for students around middle school age. No previous robotics or programming experience is required. A moderate level of comfort with technology is suggested for teachers.。Every student should have their own robot!。Features：Sensors provide abilities like obstacle detection and ranging、line-following、and light orientation、making it suitable for a variety of activities like maze-solving。Movement on flat surfaces。Multicolor LED。Low cost makes it feasible for all students to have、and personalize、their own robot。Plugs directly into USB port for programming and charging -- no separate cable required。Hardware and programming environment are both open-source。Part List：Each kit is complete with a robot chassis、materials to attach a "foot"(plastic pad、standoffs、screws； takes 1 minute and requires no tools)、and a rechargeable battery.

The Gameduino 2 turns your Arduino into a hand-held modern gaming system. Touch control、a 3-axis accelerometer、microSD storage for game assets、headphone audio output、and all-new eye-popping graphics on its bright 4.3 inch screen.。Audio output is available on the amplified headphone jack、and provides a range of built-in sounds as well as sample playback at up to 48 kHz.。The Gameduino 2 software library is documented extensively in the book、available for free download.。Features。Complete hand-held game module：supply an MCU(Arduino/Rasberry Pi)and power。Arduino shield form-factor。Bright 4.3"(diagonal)480x272 screen、262144 colors。Powered by latest FT800 Embedded Video Engine(EVE)。Resistive touch-screen input。3-axis accelerometer for tilt gaming。microSD storage slot。Amplified audio via headphone socket。Software and book available for download。Important。Note this unit does not include a microSD card.。Specification。Arduino Uno shield form-factor、uses SPI bus on pins 13-11. Voltage levels 3.3-5v。3.3-5V power supply required。3-axis analog accelerometer。4.3"(diagonal)TFT with adjustable backlight。3.5mm audio jack。microSD card socket。Weight：85g。Size：105x75x20 mm

Features：One of the most frequently used parts in Makeblock platform、Compatible with most makeblock motion and Structure components.。Made from 6061 aluminum extrusion、anodized surface. Excellent strength and twist resistance.。With holes on 16mm increments、can be drilled for 4mm hardware.。Threaded slot enables easy and flexible connection.。Cross-sectional area 8x8mm.。Total number of beams is 10.。Note：。We changed the version of Beam0808、the new version Beams are 8mm shorter than the old version Beams.。Part List：2x Beam 0808-80。2x Beam 0808-128。2x Beam 0808-144。2x Beam 0808-160。2x Beam 0808-192

Sometimes LED feedback isn't enough、like when you're flying around in a lab or a living room. With the buzzer deck you'll get audio feedback on system events、like low battery or charging completed. Or why not create your own melodies that will play while you're buzzing around. To get started using the buzzer deck there's already a few melodies pre-programmed in the Crazyflie 2.0 latest firmware.。This product is intended to be used together with the Crazyflie 2.0 nano quadcopter and uses its expansion board system. Please have a look at the buyers guide for more info about the Crazyflie 2.0 ecosystem. For more information about how to use the expansion decks check out the getting started with expansion decks page.。Features：Low profile piezo buzzer for tone and melody generation。Automatic detection of deck。Specifications。Based on the CMT-1203-SMT。1-wire memory for automatic deck detection。Mechanical specification。Weight：1.8g。Size(WxHxD)：25x27x4mm。Designed for mounting above or under the Crazyflie 2.0。Part list。1×Buzzer deck

The Grove Mini I2C motor driver is a very tiny motor driver with I2C interface、and it includes two motor driver chips - DRV8830、which helps you control two DC motors or winding of stepper motors on a small board simultaneously.。With four solderable pads back of the board、you can change the I2C address of each motor driver easily. Especially、with the onboard protection circuit、the max limitation current of each channel can be adjusted from 0.2A to 1A、you can set a proper limitation current according to the load.。It can be used for battery-powered toys、printers、and other low-voltage or battery-powered motion control applications due to the features.。Also、Grove Mini I2C motor driver is belong to Grove System、you can plug it onto the Base shield and work with Arduino directly without any jumper wires.。Features：Tiny driver board。Two motor driver channels。Working Voltage：2.75v 6.8v。Changeable max limitation current。Grove compatible。I2C interface。Easy to use

It's interesting to hack one of your appliances or lighting projects into a whistle controlled intelligent one. The whistled allows you to do so by simply whistling two musical notes. To set it up、you just need to connect your 5.5/2.1mm DC connector on one end and your load on the other.。Specifications。ESD protected PCB、covered in transparent heat shrinkable tubing。Voltage must be between 4.5 and 18V at the input(barrel connector)。Reversed polarity protection。Max current of 5A。16 bits PWM output。SWD pads for programming。Listening range of 15m / 50feet。Cortex M4 microcontroller performing 80 FFTs / sec。Maximum voltage on the screw terminals is 25 Volts(don't forget the flyback diode!)

ClockTHREEjr、jetzt auf Deutsch! Sie haben gefragt、und wir haben geantwortet. Zum proberieren、haben wir nur 25 gemacht.。Deise ClockTHREEjr Kommt zusammengebaut mit ein schwartze "German_v3 faceplate".。Auch auf English：Clock THREEjr(with black faceplate)。About ClockTHREEjr：ClockTHREEjr is an awesome platform for anyone wanting to explore time with electronics. The ClockTHREEjr is a smaller version of our earlier、wildly successful、Kickstarter project ClockTHREE. ClockTHREEjr fits perfectly in a 9'' by 9''IKEA RIBBA frame(not included、sold separately). It features mono-color LEDs in a 16 column by 8 row matrix、giving it a total of 128 addressable LEDs.。ClockTHREEjr is sold assembled with an English faceplate. This is not a kit、but a fully functioning clock ready to hang on your wall. To support use in all countries、ClockTHREEjr is powered by USB. Please use an old cell phone charger or empty USB port on your computer to power your clock.。If you would like a clock in、German、French、Hungarian、Hebrew、or Dutch、you can buy a Faceplate/chip upgrade from Wyolum. Or if you would like a clock in a different language、please contact us、we'd be happy to work with you to develop it with you.。Also available as a kit.。Specifications。Dimension：23233cm。Net Weight：approx. 1kg。Power Supply：5V