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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

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

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)

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。Grove Breakout for LinkItTM Smart 7688 Duo is a Grove port integrated and a feature expansion board for LinkItTM Smart 7688 Duo development board. This breakout board will save a lot of work for quicker prototyping、especially for novices through simplified wiring procedure. So it will help a beginner get a quick start. It supports serial buses like I2C、UART and provides access to reserved original pins of LinkItTM Smart 7688 Duo.。LinkIt Smart 7688 Duo(a compact controller board)is an open development board、based on the OpenWrt Linux distribution、MT7688 and ATmega32u4. The board is designed especially to enable the prototyping of Rich Application IoT devices for smart house.。Features。Grove interfaces：I2C×3、Analog× 3、Digital× 6。Specification。Input voltage：5.0V(With USB Power port)。Operating voltage：3.3V。Debug pins conect with MT7688。Other pins connect with ATmega32U4.

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

。Introduction：This robot gripper is perfect for all your gripping needs. Made from a heavy duty but lightweight PVC、it comes with four standard M4 thread holes on the bottom for easy assembly.。Features：Self-locking fingers。Extra anti-slip material on the inside of two fingers。A built-in resettable fuse protects the N20 screw motor from short-circuits and over-current。Motor Specification：Voltage：12v。Operating current：110mA。Speed：600±10%RPM。Part list：1× Robot Gripper。1× Motor Cable

。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

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

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

。High flux per LED。Very long operating life(up to 100k hours)。Various colors。Good color uniformity。More energy efficient than incandescent and。most halogen lamps。Low Voltage DC operated。Instant light(less than 100ns)。No UV。Superior ESD protection。【Typical Applications】。- Reading lights(car、bus、aircraft)。- Portable(flashlight、bicycle)。- Uplighters/Downlighters。- Decorative/Entertainment。- Bollards/Security/Garden。- Cove/Undershelf/Task。- Indoor/Outdoor Commercial and Residential Architectural。- Automotive Ext(Stop-Tail-Turn、。- CHMSL、Mirror Side Repeat)。- LCD backlights

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)

。SDLogger is a simple serial logger based on SparkFun/Nathan Seidle's OpenLog. It is using an ATmega644P processor running at 14.7456MHz and logs to full-size SD cards. It supports both standard SD cards(FAT16)and SDHC cards(FAT32). SDLogger ships with OpenLog firmware 1.61 installed(compiled with SDHC/FAT32 support and large 2048 character input buffer)together with an Arduino-compatible bootloader for easy program update.。Features。Simple to configure and use。Automatically logs data received on the serial input port。Can be configured using a config file on the SD card。Supports 2400、4800、9600、19200、38400、57600、115200 and 230400 serial baud rates at 8-N-1.。Supports both standard SD cards up to 2GB(FAT16)and SDHC cards up to 16GB(FAT32)。Large input buffer(2048 characters)。Full-size SD card form factor。14.7456 MHz crystal oscillator for precise baud rate generation。Input voltage range：3.3 to 12V。Arduino-compatible bootloader installed for easy program update。Full Arduino environment support - can be used as an inexpensive Arduino board for program development。I/O ports supported in Arduino environment(in addition to the main serial port)：4 analog inputs、second serial port、I2C port。Simple SDLogger original firmware restore procedure using the Arduino environment。SDLogger hardware/firmware designed by Saanlima/Magnus Karlsson and released under CC BY-SA v3 license。Design files、Arduino code and other ported code available on GitHub