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Espruino is a small computer that anyone can use to control things around them. Its JavaScript interpreter gives you instant feedback so that you can experiment and develop whatever your level of experience. Even if you've never written code before、you can still use the graphical code editor to write programs without typing a single word!。Features：Works on Windows、Linux、MacOS and Android(via Bluetooth or USB OTG)。Less than half the size of a business card just 54mm×41mm。Using the popular JavaScript language、Espruino supports Strings、Maps、Objects、and Dynamic Arrays right out of the box!。72Mhz ARM microcontroller with 256KB of Flash memory and 48KB of RAM。Micro USB connector、Micro SD card connector、and a JST Battery connector with a wide input voltage range of 3.6v to 15v。Red、Green and Blue LEDs、with 2 pushbuttons(one of which is reset by default)。Solder an HC-05 Bluetooth module(not included)directly onto the board and program and debug Espruino wirelessly!。44 GPIO pins on a 0.1''pin spacing、with 26 PWM pins、16 ADC pins、5 USARTs、3 SPI、2 I2C and 2 DACs。Power Consumption：35mA run、12mA sleep、<0.05mA in deep sleep。Prototype area which can be used for servo headers、wireless modules and SOIC surface mount parts such as motor drivers。Built in drivers for the TI CC3000 WiFi and WIZnet W5500 Ethernet modules(not included)、as well as a graphics library with vector font Open Source software and hardware。Espruino Website with full documentation、many tutorials、and an active forum。CE and RoHS Compliant。On-chip RTC with external 32kHz Oscillato

Special noticed with only 3.3v supported for motor encoder connectors and Grove connectors。Description。The 4WD Driver Platform V1.0 is a multi-purpose、all-in-one development platform based on Intel Edison. It is specially designed for robotics app

Grove - Water Atomization is a perfect module for you to develop an atomizer or an atomizer module in your applications easily. With just a few simple steps、you can prototype an atomizer. It has Grove interface which makes it easy to be integrated into pl

。Control HD44780 LCDs from the Bus Pirate with this breakout board. The Bus Pirate LCD mode uses an adapter because there aren't enough pins to control a character display. You can build it with a few chips on a bread board、or you can buy this one ready-made. Includes a short connector cable. Every sale directly supports open source development of the Bus Pirate.。Supports the most common HD44780 1x16 connector。Contrast adjustment。Connection indicator LED。Backlight connections adjustable。Many backlights can be dimmed。Compatible with Bus Pirate v3.x and v2go(all production versions)。Includes connector cable(Bus Pirate and LCD NOT included)。Uses DP6037 standard PCB footprint。Open source(CC-0/Public Domain)。Each unit is tested before it leaves Seeed Studio

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!)

Mega Shield is a extension board for Arduino Mega and Google ADK. We have standardized all the connectors into 4 pins(Signal 1、Singal 2、VCC and GND)2mm connectors and keep some of the 3pin(Signal、VCC and GND)2.54mm headers for Servo and Electronic Bricks、

Compact， Easy to Install。High Sealing Performance。High Quality Hall Effect Sensor。RoHS Compliant。Water flow sensor consists of a plastic valve body、a water rotor、and a hall-effect sensor. When water flows through the rotor、rotor rolls. Its

Grove Base Shield for Photon is an expansion board which incorporated the standard Grove interfaces to let you build more powerful and intelligent applications with richer and cost-effective Grove functional modules. It gets three digital ports、two analog ports、two I2C ports and one UART port. It's a plug-and-play shield designed to accelerate prototyping dramatically.。Features。Compatible with Photon。Standard Grove interfaces to connect to a large family of Grove sensors and actuators。I2C、UART ports integrated。Specification。Grove Ports：3 digital ports、2 analog ports、2 I2C ports and 1 UART port.。Dimensions：53×53 mm。Weight：18g

。Grove Base Shield for NodeMCU is an extension board that help you to play with Grove sensors on an ESP8266 WIFI development kit which called NodeMCU.。You can run Grove sensor with Lua script language in the NodeMCU firmware.。Features：Compatible with all Grove modules。5 Digital connectors(D3-D8)。1 Analog connectors(A0)。2 I2C sockets。NO SPI socket。UART/D9-D10 connector。Power indicator LED

Easily connect to chips with this probe cable for Bus Pirate v3.x(all versions). Each wire has a convenient male pin header for easily connecting to chips in a bread board. All pins are clearly labeled so you know the exact function at a glance. Design

。Description。Find setting up an amplifier IC on the breadboard a troublesome and totally no-need-to-repeat job? This Grove module can save you clutter to settle up such an IC by integrating the whole operating circuit. It's designed for precise differential-input amplification. Input the differential signals of your sensor to this module through the male pins， then your Arduino will get a precisely amplified output from the Grove interface. The gain scale factor is selectable. You can get a 35 times or 1085 times amplification via a switch on the board.。Features。High amplifying precision。Selectable scale factor。Can be conveniently read by Arduino。Strong input protection：&plusmn；40V

This is a rainbow-colored mini storage box. It has 14 independent cells in 7 bright colors、would be a perfect container for your tiny objects such as resistors、small screws、even your candies and daily medicine pills.。Features。Independent cells。Colorful appearance。Easy to reassemble。Specifications。Dimensions：70*170。Material：Plastic

The Create USB Interface is an open source microcontroller board that can be programmed in C、BASIC、or Arduino languages. This latest version is called the CUI32Stem、which is designed to work 'hand-in-hand' with the GROVE prototyping system including a wide range of sensors and actuators. You can connect CUI32Stem to Grove system boards via Grove Converter Cables. It utilizes a high-performance Microchip PIC32 microcontroller、allowing programmable interaction with all sorts of user inventions、no soldering required!。There is a bag of headers included、but not soldered onto the board. This provides a slim board profile for those that require low-profile mounting locations.。There is also a wireless transceiver shield for the CUI32Stem called ZigFlea、please click here for more information.。Features。CUI32Stem is designed to be a brain of the GROVE system。Arduino-code can be compiled for the CUI32Stem via MPIDE。Powerful 32-bit Microcontroller running at 80MHz。Easy to use Real-time Operating System pre-installed - StickOS

Grove - Wrapper is a kind of wrapper to fix and protect Grove modules. It will save you a lot of work on aligning your modules、and it will easy for you to show your project. For example、it will simpler to take pictures for showing your product on the Internet、and it will give a clear and clean scene if you use Grove - Wrapper to demo your project. What is more、it is expandable for Lego、mechanical parts、and so on、this will introduce flavor into your work and make your project adapt to various circumstances. The mechanical design of Grove - Wrapper also make it easy to assemble and disassemble modules.。Notethat around 85% of all Grove modules are supported by Grove - Wrapper.。Features。Flex fastener to install and replace Grove modules conveniently.。Always keep your project safe.。Half-open space、no disruption for using Grove modules.。Compatible with Lego and Makeblock modules that will make your project adapting and interesting.。Support being fastened with screws(M2、M4).。Mutual-connect-able like Lego modules does.。Colorful wrappers.。Specification。Dimension(big one)：50×25×13 mm。Plane dimension(small one)：25 ×25×13 mm。Material：ABS

Grove - Wrapper is a kind of wrapper to fix and protect Grove modules. It will save you a lot of work on aligning your modules、and it will easy for you to show your project. For example、it will simpler to take pictures for showing your product on the Internet、and it will give a clear and clean scene if you use Grove - Wrapper to demo your project. What is more、it is expandable for Lego、mechanical parts、and so on、this will introduce flavor into your work and make your project adapt to various circumstances. The mechanical design of Grove - Wrapper also make it easy to assemble and disassemble modules.。Notethat around 85% of all Grove modules are supported by Grove - Wrapper.。Features。Flex fastener to install and replace Grove modules conveniently.。Always keep your project safe.。Half-open space、no disruption for using Grove modules.。Compatible with Lego and Makeblock modules that will make your project adapting and interesting.。Support being fastened with screws(M2、M4).。Mutual-connect-able like Lego modules does.。Colorful wrappers.。Specification。Dimension(big one)：50×25×13 mm。Plane dimension(small one)：25 ×25×13 mm。Material：ABS

Espruino Pico is a tiny microcontroller board that runs JavaScript(it doesn't need to be plugged into a computer)、making it easier than ever to control electronics in the real world. You can program it with nothing but a serial terminal program、but there's also an IDE that runs in the Chrome Web browser. It's got a syntax highlighted editor as well as a graphical programming language.。Once you have uploaded code、you can inspect and change variables(including functions)while your program is running. If you make something with an Espruino Pico and need to change it a year later、your original code is still there waiting for you!。This is the pinned version of the board、which fits perfectly into breadboard. If you need without pre-soldered pins、please visit Espruino Pico(unpinned).。Features：33mm×15mm(1.3×0.6 inch)。22 GPIO pins：9 Analogs inputs、21 PWM、2 Serial、3 SPI、3 I2C。All GPIO is 5 volt tolerant(Arduino compatible)。2 rows of 9 0.1" pins、with a third 0.05" row of 8 pins on the end。On-board USB Type A connector。Two on-board LEDs and one button.。STM32F401CDU6 CPU - ARM Cortex M4、384kb flash、96kb RAM。On-board 3.3v 250mA voltage regulator、accepts voltages from 3.5v to 16v。Current draw in sleep：< 0.05mA - over 2.5 years on a 2500mAh battery。On-board FET can be used to drive high-current outputs。Part List：Espruino Pico(pinned)x 1

。Grove - Wrapper is a kind of wrapper to fix and protect Grove modules. It will save you a lot of work on aligning your modules、and it will easy for you to show your project. For example、it will simpler to take pictures for showing your product on the Internet、and it will give a clear and clean scene if you use Grove - Wrapper to demo your project. What is more、it is expandable for Lego、mechanical parts、and so on、this will introduce flavor into your work and make your project adapt to various circumstances. The mechanical design of Grove - Wrapper also make it easy to assemble and disassemble modules.。Notethat around 85% of all Grove modules are supported by Grove - Wrapper.。Features。Flex fastener to install and replace Grove modules conveniently.。Always keep your project safe.。Half-open space、no disruption for using Grove modules.。Compatible with Lego and Makeblock modules that will make your project adapting and interesting.。Support being fastened with screws(M2、M4).。Mutual-connect-able like Lego modules does.。Colorful wrappers.。Specification。Dimension(big one)：50×25×13 mm。Plane dimension(small one)：25 ×25×13 mm。Material：ABS

Espruino Pico is a tiny microcontroller board that runs JavaScript(it doesn't need to be plugged into a computer)、making it easier than ever to control electronics in the real world. You can program it with nothing but a serial terminal program、but there's also an IDE that runs in the Chrome Web browser. It's got a syntax highlighted editor as well as a graphical programming language.。Once you have uploaded code、you can inspect and change variables(including functions)while your program is running. If you make something with an Espruino Pico and need to change it a year later、your original code is still there waiting for you!。This is unpinned version、if you want pre-soldered pins、please visit Espruino Pico(pinned).。Features：33mm×15mm(1.3×0.6 inch)。22 GPIO pins：9 Analogs inputs、21 PWM、2 Serial、3 SPI、3 I2C。All GPIO is 5 volt tolerant(Arduino compatible)。2 rows of 9 0.1" pins、with a third 0.05" row of 8 pins on the end。On-board USB Type A connector。Two on-board LEDs and one button.。STM32F401CDU6 CPU - ARM Cortex M4、384kb flash、96kb RAM。On-board 3.3v 250mA voltage regulator、accepts voltages from 3.5v to 16v。Current draw in sleep：< 0.05mA - over 2.5 years on a 2500mAh battery。On-board FET can be used to drive high-current outputs。Part List：Espruino Pico(unpinned)x 1

Grove - Wrapper is a kind of wrapper to fix and protect Grove modules. It will save you a lot of work on aligning your modules、and it will easy for you to show your project. For example、it will simpler to take pictures for showing your product on the Internet、and it will give a clear and clean scene if you use Grove - Wrapper to demo your project. What is more、it is expandable for Lego、mechanical parts、and so on、this will introduce flavor into your work and make your project adapt to various circumstances. The mechanical design of Grove - Wrapper also make it easy to assemble and disassemble modules.。Notethat around 85% of all Grove modules are supported by Grove - Wrapper.。Features。Flex fastener to install and replace Grove modules conveniently.。Always keep your project safe.。Half-open space、no disruption for using Grove modules.。Compatible with Lego and Makeblock modules that will make your project adapting and interesting.。Support being fastened with screws(M2、M4).。Mutual-connect-able like Lego modules does.。Colorful wrappers.。Specification。Dimension(big one)：50×25×13 mm。Plane dimension(small one)：25 ×25×13 mm。Material：ABS

。Grove - Wrapper is a kind of wrapper to fix and protect Grove modules. It will save you a lot of work on aligning your modules、and it will easy for you to show your project. For example、it will simpler to take pictures for showing your product on the Internet、and it will give a clear and clean scene if you use Grove - Wrapper to demo your project. What is more、it is expandable for Lego、mechanical parts、and so on、this will introduce flavor into your work and make your project adapt to various circumstances. The mechanical design of Grove - Wrapper also make it easy to assemble and disassemble modules.。Notethat around 85% of all Grove modules are supported by Grove - Wrapper.。Features。Flex fastener to install and replace Grove modules conveniently.。Always keep your project safe.。Half-open space、no disruption for using Grove modules.。Compatible with Lego and Makeblock modules that will make your project adapting and interesting.。Support being fastened with screws(M2、M4).。Mutual-connect-able like Lego modules does.。Colorful wrappers.。Specification。Dimension(big one)：50×25×13 mm。Plane dimension(small one)：25 ×25×13 mm。Material：ABS

Grove - Wrapper is a kind of wrapper to fix and protect Grove modules. It will save you a lot of work on aligning your modules、and it will easy for you to show your project. For example、it will simpler to take pictures for showing your product on the Internet、and it will give a clear and clean scene if you use Grove - Wrapper to demo your project. What is more、it is expandable for Lego、mechanical parts、and so on、this will introduce flavor into your work and make your project adapt to various circumstances. The mechanical design of Grove - Wrapper also make it easy to assemble and disassemble modules.。Notethat around 85% of all Grove modules are supported by Grove - Wrapper.。Features。Flex fastener to install and replace Grove modules conveniently.。Always keep your project safe.。Half-open space、no disruption for using Grove modules.。Compatible with Lego and Makeblock modules that will make your project adapting and interesting.。Support being fastened with screws(M2、M4).。Mutual-connect-able like Lego modules does.。Colorful wrappers.。Specification。Dimension(big one)：50×25×13 mm。Plane dimension(small one)：25 ×25×13 mm。Material：ABS

DSCope is an open source USB-based oscilloscope. It's specially designed for makers with professional specifications and an affordable price. DSCope can be used in academic、experiment、electronics maintenance、engineering task etc.。DSCope has a pocket size(101mm74mm16mm)、which make it to be an ideal replacement to clunky traditional oscilloscope、and help you to save a big area for your working desktop.。DSCope works with your PC、MAC or even windows tablet through USB interface、which bring a big screen oscilloscope to you without any extra cost.。Features：Open source。Unibody aluminum shielded case。Auto zero skew adjustment。upgradable Hardware。Advanced digital trigger。Deep sample depth。USB interface、USB powered。Two channels。Signal Generator。Specification：Analog Bandwidth：50MHz。Max Sample rate：200MHz @ 1 Channel / 100MHz @ 2 Channels。Max Sample Depth：1M(real-time mode)/ 16M(single mode)。Coupling：AC / DC / Ground。Input Characteristics：1MΩ // ～15 pF。Protected Voltage：±100 V(DC+AC peak)。Vertical Sensitivity：10mV/div ～ 2V/div(x1)/ 100mV/div ～ 20V/div(x10)。Horizontal Sensitivity：10nS/div ～ 10S/div。Triggering Mode：Auto、Single、And、Or。Rising/Falling Edge trigger。Vertical precise、horizontal precise measurement。Waveform functions auto measurement：max、min、frequency、period。Support OS：windows、Linux、OS X。Dimension：101×74×16 mm。Part List：DSCope：x 1。USB cable：x 1。P6100 probes：x 2。Adjustment tool：x 1

With the BigQuad deck you can transform your Crazyflie 2.0 to a bigger quad by connecting external ESCs(Electronic Speed Controller)to the breakout connectors on the deck. The autodetection of the deck makes this transformation possible to do in seconds. The deck contains breakout header connectors for additional accessories such as external receiver(CPPM input)and GPS. It also has the possibility to monitor battery voltage and current.。This product is intended to be used together with the Crazyflie 2.0 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.。Early Access：This product is currently part of the early access program. This means the hardware is ready and low level tested but the firmware/software is still in a very rudimentary state、there are probably basic drivers for communicating with the hardware、but no higher level functionality.。Features：4×ESC connectors。0.1"header mounting holes for additional connectivity：CPPM input(3 pin)。GPS input(4 pin)。I2C expansion(4 pin)。Battery and current monitoring input(3 pin)。Buzzer output(2 pin)。Connect one or two additional decks。Automatic detection of expansion deck。Electrical specification：Power Crazyflie 2.0 with 4.5V - 5.5V from ESC.。BiqQuad deck inputs are 5V tolerant.。Battery voltage monitoring divider scaled for input up to 23V.。Current monitoring input 0V - 3V.。BiqQuad deck and Crazyflie 2.0 current consumption：～120mA without any additional decks.。Up to 500mA if Crazyflie 2.0 battery is connected and charging.。1-wire memory for automatic expansion deck detection.。Mechanical specification：Weight：3.8g。Size(WxHxD)：36x40x5mm。M3 mounting holes placed 30.5mm square.。Designed for mounting above or under the Crazyflie 2.0。Package contents：1×BigQuad deck。4×M2x4 nylon screw。2×M2x6 hex spacer