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Strictly speaking、Booster-B24V2A5 is a dual H-bridge power driver、which integrates 24 N-Channel MOSFETs(with low Drain-Source On-Resistance、RDS(ON)<3mΩ)and various protections(reliable and flexible). It can be used for controlling the brushed DC motor、high-power LED and so on. In addition、it integrates RS485 and I2C into one connector、and they share the same user register、so it can be used via any one of the two interfaces at any time. All functions can be performed by reading or writing the user register、except for a few special operations(please refer to the corresponding communication protocols for details)、which is similar to the MCU operation.。Features：It integrates various protections(Under-Voltage、Over-Voltage、Over-Temperature、Over-Current、Out-Of-Control and Power-Reverse). The response-time of the Over-Current protection can be flexibly set and performed by hardware(comparator)、which makes the protection more timely and reliable.。There are 18 control modes for different applications(see below).。It integrates a stable and high-efficiency RS485、and the baud rate can be detected automatically. There is no instruction packet loss when the baud rate is not higher than 28800bps、otherwise the first instruction packet will be discarded. Furthermore、it is recommended to send the sync bytes(0xff 0xff 0xff 0xff)first when the baud rate is higher than 28800bps.。It integrates a stable and high-efficiency I2C.。Specification：Supply Voltage：DC 6 ～ 24V。Continuous Current：2 5A / 1 10A(Just limited by D-Sub connector、210A / 115A for mosfets and sampling resistors.)。Baudrate Range：1200 ～ 115200bps。I2C Speed：100KHz。Size：54.5mm 50mm 30.5mm(LWH)。We have adapters for this controller：GDA-HLB1，GDA-HLU1 and GDD-FAN.

Supports both Seeeduino MEGA and Arduino MEGA。All pins are brought to the top level。Supports Xbee/GPS bee。Rest button brought to the top level。This is the 1st Protoshield for Seeeduino MEGA which brought all pins from Seeeduino、even Arduino to the top! With this protoshield、users will find a large prototyping area、you can even use Xbee with this board to make it a Xbee shield.

This is an aluminum infrared proximity sensor bracket kit for Infrared Proximity Sensor. With this kit、one RB-421 Servo and one Infrared Proximity Sensor you can build a 2 degrees freedom servo mount assembly.。This kit is professional in steering the infrared proximity sensor on a robot for 180° of rotation side to side and front to back.。These parts also have holes at 20mm spacings so they can be attached to Seeed Starter Bundle Harness which has 20mm spacings as well.

This is a very useful mini breadboard with 170 tie points. It has 5 colors、self-adhesive backing、perfect design for small project.

This is a very useful mini breadboard with 170 tie points. It has 5 colors、self-adhesive backing、perfect design for small project.

A clear laser-cut acrylic project case kit that fits DP7070 square PCBs(70mmx70mm). Protect your project from electrical shorts and fingers、but keep it accessible for hacking and showing off. Sick of Beige basic case v1 is designed to be simple、cheap、and easy to assemble. The project PCB is sandwiched between two laser cut acrylic sheets、and the whole assembly is held together with aluminum screws and standoffs.。Sick of Beige PCB templates and clear enclosures make it super easy to design your project for a case. Drop a standard PCB footprint on your schematic、and then route on the board template. The board shape、size、limitations、and many connector placements are already taken care of.。This case fits DP7070(70mmx70mm PCB size)compatible PCBs.

This is a very useful mini breadboard with 170 tie points. It has 5 colors、self-adhesive backing、perfect design for small project.

LEDセグメントディスプレイ付調整可能なDC/DCコンバータモジュール。ディスプレイの主な機能。動作モードの説明、キーオフ機能付で消費電力を抑制、電源状態は自由に定義

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

。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

Grove Solid State Relay is a non-contact electronic switch module that has relay features. Based on S208T02、it has a maximum output of 250VAC/4A、with a switching speed less than 10ms. This module is equipped with acrylic base and a 3D-printed protection insulation shield、for user's safety. The featured LED indicates that the relay is on. It can be widely used in various areas such as computer peripheral interfaces、temperature/speed light adjustment、servo control、petrochemical、medical instrumentations、financial devices、coal、meters、traffic signals、etc.。Features。Compatible with both 3.3V and 5V control level。Low switching latency(10ms)。LED on-state indicator。Featured radiator provide better stability。Acrylic base and insulation paper increase safety performance。Grove compatible

A clear laser-cut acrylic project case kit that fits DP4040 square PCBs(40mmx40mm). Protect your project from electrical shorts and fingers、but keep it accessible for hacking and showing off. Sick of Beige basic case v1 is designed to be simple、cheap

A breakout board with the latest 5th generation FTDI FT2232H USB 2.0 IO。chip. The FT2232 is a USB to serial converter like the FT232、but with a。bunch more features：- USB 2.0 Hi-Speed(480Mb/s)。- 2 Independent USB to serial ports。- 2 MPSSE

The PI-TFT22A module features a 2.2'display with 320x240 16-bit color pixels. This PI-TFT22A module refresh it's screen rapidly because the TFT module communicates with raspberry Pi in a high speed SPI interface、this PI-TFT22A module can be used as Xwindow port、displaying images or video etc. it plugs right in on top of your Model A+、B+ or Pi 2 and fits as HAT.。You can download configuration-free image or configurable packages、adjustable brightnes [level 0 -255]、HAT compatible and Onboard buttons、you can load kernel modules to support GPIO KeyBoard function、almost all GPIO available on this board [non SPI 0、GPIO 18、GPIO 24、GPIO23]、Very easily be other uses、IDROM has built initialization data to support Device Tree boot。Technical Details：type value。product name：RPI_2.2'TFT Display Module。character number：320×240。screen scale：2.2'。refresh rate：>20fps。weight：23.9g。module scale：66x57x12(mm)。connect port：2*20 Stacking Header。control interface：SPI。work voltage：5V

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 KIT includes the unpopulated PCB、all of the electrical components、and the laser cut parts with an English faceplate. 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 fully assembled clock.。Specifications。Dimension：23233cm。Net Weight：approx. 1kg。Power Supply：5V

As somebody worry about the price of Seeeduino Stalker will be too high with GPS module、so we separate the GPS module away from stalker .。And to make the GPS module easily to compatible with the existent shield、we use the same pin packaging as XBee wireless module.So you can put the GPS module into the existent shield which compatible with XBee. Also you can use the UartSB to connect the GPS module to USB port、run a software named u-center to analyze the GPS data and to reset the GPS module parameter. Put the GPS Bee on the UartSB、and connect the UartSB to the PC、open the u-center.exe、choose the UartSB port、then you can see the data that GPS module send back、and the software analyze them and show you the specific information、like：time、speed、latitude and longitude、ASL and so on.。Kit is come with a nice Antenna、you can also purchase another Antenna with lager size.。Compatible with all shields、breakout、boards with Xbee standard sockets.。4 pin 2.54mm to 2.0mm Female jumper wire is also available for easy adaption!

Atom Node is a IoT platform、which intellectualize its surroundings. Atom Node can support serveral Grove sensors and actustors to gather physical data and actuat certain action. Atom Node needs to be configured before putting into use. After configration、several modules can gather and transmit data wirelessly through RFBee. Besides、with a rotating shaft and universal framework、the pretty、easy open-closed and pragmatic shell can satisfy customer's applications in different working environments.。A Sensor is an electronic object that gets physical values from the environment. For instance、a Grove-Temperature Sensor reads temperature data and transports it to Node.。An Actuator makes some certain actions. As an example、Grove-LED will blink when a HIGH level is sent to it.。Features。Mobile devices/Apps centered configure。Open Source。Flexible wireless networks topology from Ad-hoc to mesh。Built-in battery。A variety of Indicators、Easy to distinguish the work state。Skin-Skeleton-Gut philosophy

。DESCRIPTION。This Grove - BLE utilizes an HM-11 module to provide your Arduino/Seeeduino with serial BLE function， and it can be used with Arduino/Seeeduino very conveniently if using with Base Shield together. With support for a BLE ComAssistant APK， this Grove - BLE can talk to your mobile phone more easily without pairing， and of course， it can be set via AT commands directly. You can use it in many conditions， like robot controls or remote control equipment ，etc. We prepared an easy and convenient command set for this product so that you can use neat and concise code to run the function.

。The BUGduino was designed and built to make the development of custom hardware for your bug as painless as possible! It's an open ended platform upon which you can build whatever you want. The BUGduino is essentially an AVR breakout board that will play very nicely with your BUGbase. Also、as you might have already guessed、BUGduino is fully Arduino-compatible. This means that it can be programmed using the Arduino IDE、and can be fitted with many of the shields that have already been designed by the members of the Arduino community.。Features。Arduino compatible、based on Seeeduino。BUG connector。USB to Uart：FT232RL。ATmega328 microcontroller。Input voltage - 7-12V。14 Digital I/O pins(6 PWM outputs)。8 Analog inputs。32k Flash memory。16Mhz Clock speed

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 new USB Tester Backback 2.0 brings many new features to the already very useful tool. We have worked hard over the recent months to bring most of the many requested features.。The USB Tester makes it easy to monitor the current and voltage of any USB device. It is inserted inline between your USB device and your power source or computer. This allows you to make sure you are getting a true 5V and to read how much power your projectdevice is using. For example、you can check which charger/cable allows your phone to charge the fastest. The base can be used with a Digital Multi Meter or with the Backpack、you can see the readout directly on the display. The default mode shows a graph of current usage、with the button cycling through the different modes.。The OLED Backpack can connect to a computer either using the Java app or the wizkers.io Chrome app. Both can graph and log the data which can be export as a CSV file. Wizkers is easier to setup and can handle firmware updates.。Features：Micro USB。Button Location on the front left。128x64 OLED Display。Voltage monitoring of the USB Data lines。Easier access to almost all the extra GPIO's。Separated voltage test points(Easier to attach test clips and avoid misplacing jumper)。Standard Dual Banana spacing 0.75in。Standard test probe sized test points。Firmware Features：Peaks。mWh and mAh tracking。Bar Graph of volts、watts and current。JSON for serial communications。Java App：Uses JSON over serial。Save as CSV。View max、min、avg on each graph。Specification：OLED。.96in。128x64。SPI。Supply：4.5v-5.5v。I/O：3.2v-5.5。8 Pin。PCB：26.7mm×25.4mm。Monochrome(WHITE)。Display Mode：Passive Matrix。Drive Duty：1/64 Duty。Active Area：21.744×10.864(mm)。Pixel Size：0.154×0.154(mm)。Pixel Pitch：0.17×0.17(mm)。2.0mm pitch(Might be breadboardable if you bend the pins out)(same pitch as Xbee)

。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

Description。The kit contains 9 selective Grove modules and the Smart 7688 Duo breakout board to get you quickly started with LinkIt Smart 7688 Duo under Arduino environment. It has an online tutorial with step-by-step instructions. People can learn more about open source hardware and cloud service、as well as to build up projects with this kit.。Features。Plug-n-play Grove interfaces. No breadboard、no jumper wires or soldering。Designed for smart-home applications。All essential and basic functional modules included。Detailed and completed tutorial。Part List。1×Grove - Light Sensor。1×Grove - Infrared Emitter。1×Grove - Infrared Receiver。1×Grove - Encoder。1×Grove - Touch Sensor。1×Grove - OLED Display 1.12"。1×Grove - Temperature Humidity Sensor。1×Grove - Relay。1×Grove - Gas Sensor(MQ2)。1×IR Remote Control

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

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

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