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describe Product characteristicsCompatible with all Grove modules5 Digital pins (D3-D8)1 analog pins (A0)2 I2C interfacesNo SPI interfaceUART/D9-D10 interfacePower indicator lightBe careful:1. pin interleaved, D3 socket control, D3 and D5, D5 socket control, D5 and D6, followed by D6 and D7, and so on.2. there is no D4 socket.3. UART can be multiplexed with D9, D10, I2C and D1, and D2 multiplexing.4. it does not conflict to use I2C at the same...
Description100% brand new and high qualityThe Si7021 I2C Humidity and Temperature Sensor is a monolithic CMOS IC integrating humidity and temperature sensor elements, an analog-to-digitalconverter, signal processing, calibration data, and an I2C Interface. The patented use of industry-standard, low-K polymeric dielectrics for sensing humidity enables the construction of low-power, monolithic CMOS Sensor ICs with low drift and hysteresis, and excellent long term stabilityThe humidity and temperature sensors are factory-calibrated and the calibration data is stored in the on-chip non-volatile memory. This ensures that the sensors are fully interchangeable, with no recalibration or software changes requiredThe Si7021 is available in a 3x3 mm DFN package and is reflow solderable. It can be use...
IntroductionThe NodeMCU is an open-source firmware and development kit that helps you to prototype your IoT product within a few Lua script lines. Formore details, please visit  FeatureOpen-sourceInteractiveProgrammableLow costSimpleSmartWI-FI enabledArd--uino-like hardware IOAdvanced API for hardware IO, which can dramatically reduce the redundant work for configuring and manipulating hardware.Code like ard--uino, but interactively in Lua script.Nodejs style network APIEvent-driven API for network applicaitons, which faciliates developers writing code running on a 5mm*5mm sized MCU in Nodejs style.Greatly speed up your IOT application developing process.Lowest cost WI-FILess than $2 WI-FI MCU ESP8266 integrated and esay to prototyping development kit.We provide the best platform...
X-Battery ShieldWhat makes it special?· 5V&1A Charging Input· 5V&1A Charging Output· High Efficiency(88%~92%)· 1 Switch control· Micro USB Port· Battery Protection· Low Power Consumption.· LED indicate(Green&Red)This product does not include the battery. Shipping list as shown below
Notice:   The new tracking number for  Yanwen Economic Air Mail can be traced only befor it arrive the airport of your country,please choose  Special Line-YW/China Post Air Mail or AliExpress Standard Shipping.if you want a full tracking info.The same product will arrive in 15 to 60 days.Tracking info of  Yanwen Economic Air Mail can be check here: www.17track.net/en
New features: First ARM 32-bit master Dual USB download , Native USB port can be modeled as a USB device Due Technical parameters: Processor AT91SAM3X8EA Operating voltage 3.3V Input voltage 7-12V Input voltage ( limit ) 6-20V Digital I / O port 54 ( 12 PWM outputs ) Analog input pin 12 Analog output pin 2 ( digital to analog converter ) row mother I / O ports DC output current 130mA 3.3V power supply pin can provide 800 mA current 5V power supply pin with 800 mA current Internal flash memory 512KB SRAM96 KB (two banks: 64KB and 32KB) 84 MHz clock frequency
SSD1306 display(0x3c,5,4);  Test details  Pin reference description   Ineinfuhrung: ESP32 is already integrated antenna and rf balun, power amplifier, low noise amplifiers, filters, and the power management module. the entire solution is the least amount of pcb area. this board is 2.4 ghz dual mode wi fi and bluetooth chips by tsmc 40nm low power technology, power and rf characteristics of best, which is safe, reliable, and scalable to a wide range of applications. Features: high performance - price - ratiosmall volume, easy embeded to other productsstrong function, with the support of lwip protocol, freertossupport three modes: ap, sta and ap + stasupport for lua program, easy to develop  Click the link for more details:...
ESP32 description      Ineinfuhrung: ESP32 is already integrated antenna and rf balun, power amplifier, low noise amplifiers, filters, and the power management module. the entire solution is the least amount of pcb area. this board is 2.4 ghz dual mode wi fi and bluetooth chips by tsmc 40nm low power technology, power and rf characteristics of best, which is safe, reliable, and scalable to a wide range of applications. Features: high performance - price - ratiosmall volume, easy embeded to other productsstrong function, with the support of lwip protocol, freertossupport three modes: ap, sta and ap + stasupport for lua program, easy to develop  Click the link for more details: https://github.com/espressif/arduino-esp32/bl...
Notice:We will send the latest version of product, the upgraded function. It may has different shape or color. If you can't agree, pls don't buy. Pls choose available tracking info shipping method, never ask a tracking number if your shipping method is not available.ESP32 is already integrated antenna and RF balun, power amplifier, low-noise amplifiers, filters, and power management module. The entire solution takes up the least amount of printed circuit board area. This board is used with 2.4 GHz dual-mode Wi-Fi and Bluetooth chips by TSMC 40nm low power technology, power and RF properties best, which is safe, reliable, and scalable to a variety of applications.   High performance-price ratio   Small volume, easily embeded to other products   S...
NodeMCU Development Kit NodeMCU + Motor Shield esp wifi esp8266 esp-12e esp 12e kit diy rc toy remote control Lua IoT smart car ESP-12E Development Kitbeschreibung:basierend auf ESP-12E development kit, es können die entwicklung WiFi Smart auto, frei, Android telefon quelle.Features:l ESP12 DEV KIT entwicklungsboard erweiterungsmodul;l blei ESP12 DEV KIT Alle-funktion pins: SPI, UART, GPIO, AI und 3,3 V stromanschluss;l erweitern zwei-way motor angetriebene, zwei-wege direktantriebsmotor;l onboard netzschalter;l Motor leistungsbereich: 4,5 V ~ 36 V;l Kontroll leistungsbereich: 4,5 V ~ 9 V;l motorleistung, control power trennung; im experiment, durch kurzschluss block der fusion, die VIN und VM kurz, während stromversorgung an den motor und der steuerkarte.vorsichtsmaßna...
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