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The LED strip Uses trinity-SMD LED as lighting source、it shine uniformity and have high brightness.。- Uses FPC circuit board、made it easily to bend。- As lowing voltage with resistance and having IC constant current、stable working was ensured.。- Designed with two solder pan、convenient for connected.

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

。GDD-FAN1 is specially designed for many of Gicren's devices when the power dissipation is large. It integrates two JST-PH2.0-9Pin connectors which are distinguished by the name of "Upstream" and "Downstream"(Warning：the differences between them are marked on the silkscreen).

Make!Sense is an easy-to-use platform for making learning fun and interactive. It's a universal interface system that allows you to quickly and easily connect different types of sensors to your computer or smart phone. You can use Make!Sense to observe mo

。Introduction：The module assessment tool can provide power modules and DB 9 serial interface、users can directly connect with the PC serial port module、and then evaluation module functions. This board developed for EMW3162 WiFi Module.

GDA-HLU1 is a USB-to-RS485 adapter(automatic data direction control)for all Gicren's standard devices、whose conversion mechanism is "USB <-> UART(FT232RL)<-> RS485(SP485EEN)"、so it can also be used for other general purpose via pin header、such as "USB<->UART"、"USB<->RS485" and "UART<->RS485".。Features：Taking into account security issues、there are only D+ and D- pins connected to SP485EEN. In other words、the front-end circuit and back-end circuit do not share the same ground in the printed circuit board、but it is recommended to connect them manually to avoid excessive common-mode voltage when you are sure the connection is correct.。In addition、the onboard high-quality D-Sub-9Pin-Female、SMT-PH2.0-9Pin、Header-2.54mm-Pitch-9Pin、fuse and selectable matching resistor make this adapter more flexible and reliable.

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

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!)

The Arch Max v1.1 is a mbed enabled development board specially for rapid prototyping. It's based on an STM32F407VET6 microcontroller with an ARM Cortex-M4F core running at 168MHz. It provides serial wire debug](SWD)debug、drag-and-drop programming and USB serial communication. It provides a complete and straightforward development document for your projects.。Features。mbed enabled。Online development tools(include IDE)。Complete and straightforward C/C++ SDK。Massive examples and tutorials。High-performance STM32F407VET6。ARM Cortex-M4 MCU with FPU of 168MHz。512 KB Flash memory、192 KB RAM。On-board programming and debug。Drag-and-drop programming。USB serial communication。SWD debug with GDB+ pyOCD/OpenOCD、Keil or IAR。Arduino form factor、compatible with lots of shields。Built-in Ethernet port、USB and SD card slot for Internet connectivity and data exchange。Parameter。Work Voltage：5V。Microcontroller：STM32F407VET6。Flash Memory：512kB。RAM：192kB。UART：4。I2C：3。SPI：3。CAN：2。SDIO：1。Camera interface：1。Eth：1。ADC Channels：8。I/O pins：40。Digital I/O Max Input Voltage：5.0V。Diameter：90mm×44mm

Sidekick is a collection of popular components for DIY projects. It is easy to create custom breadboard circuits that can interface with a development kit. This is an excellent starter kit for new electronics engineers and makers.。This kit is fully co

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

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.

The Audio Hacker shield for Arduino allows you to perform realtime digital signal processing. Record audio samples into memory and play them back. Mix samples、manipulate audio、build audio effects、or synthesize entirely new sounds. All with Arduino programming!。High quality 12-bit ADC and 12-bit DAC. Realtime ADC sampling and output to DAC at 44.1 kHz.。256K SRAM for recording/playback of audio samples. No SD card is needed! High-speed SRAM allows fast access to audio data for realtime processing and mixing.。Record about 9 seconds of high quality audio at 22 kHz with 12-bit resolution to SRAM. Much longer samples can be recorded at lower frequency and/or resolution. See memory capacity below.。TS922IN op-amp provides high current output and up to 100X gain preamp for weak inputs.。Two onboard buttons for input、bypass switch、volume knob.。Connection for 3V battery backup to retain samples in memory.。Compatible with Arduino Uno、Duemilanove、Mega、and Leonardo. Uses digital pins 5-13.。Easy to assemble kit! Available assembled in limited quantities.。Features：Audio input and output 3.5mm stereo jacks and solder pads. The stereo input is converted to mono、and the output is always mono. Solder pads are provided for input and output in case you want to use different types of connectors。The bypass switch allows you to hear the input signal(after it has been converted to mono)on the output. This switch allows you to compare the original signal with the processed output of the Audio Hacker.。Small volume knob for the output level of the processed signal。Two buttons provided for user input. These are connected to digital pins 5 and 6.。Preamp gain allows you to amplify weak input signals. For inputs from an MP3 music player(e.g. iPod)or computer、this potentiometer should be set to its lowest level(no gain).。Battery connection allows you to keep your audio samples in non-volatile memory when power is disconnected. A simple 3V coin cell battery(e.g. CR2032)is sufficient to retain the memory contents. See this project for more details.

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

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 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

。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

。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

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!

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

。Description。Thermocouples are very sensitive， requiring a good amplifier with a cold - compensation reference. The Grove - Temperature Sensor USES a K type thermocouple Temperature detection， with a Thermistor to detect The ambient Temperature as Temperature compensation. The detectable range of this Sensor is -50-600℃ ， and The accuracy is ±(2.0% + 2℃).。Specifications。Voltage：3.3 ～ 5V。Max power rating at 25℃：300mW。Operating temperature range：-40 ～ +125 ℃。The temperature measurement range is(-50 ～ +600℃)。Amplifier output voltage range(0 ～ 3.3 V)mv。Cold junction compensation(environment temperature measurement)。Thermocouple temperature measurement accuracy of + / - 2.0%(+ 2 ℃)。Package Include：Grove - High Temperature Sensor x1。Thermocouple Temperature Sensor x1。24AWG Grove Cable - 4P-4P-2.0-200mm x1