Even though the compact design only allows Wio Node to have two Grove connectors, it still offers as many as 2 Digital I/O, 1 Analog Input, 1 UART and 2 I2C interfaces to communicate with up to 42 (and more to come) Grove modules. Setting up an IoT device with Wio Node is piece of cake as all the Grove sensor/actuator modules can be visually configured to RESTful APIs on your mobile APPs, and the physical circuit connections does not involve any bread boarding, soldering, or wire jumpers, once you finish updating the firmware over-the-air (OTA), you'll find out it only takes you 5 minutes to build an IoT application with the Wio Node. Owing to its low-cost, easy-to-use and compact design, Wio Node can be used to build an IoT system where a large amount of ‘things' are required to be connected to the internet. We have provided detailed instructions and rich tutorials at http://iot.seeed.cc/ to help you getting started with your Wio Node easily and quickly. You can also find out more interesting stuff at the Wio Community , where all the Wio fans gather to share their ideas and experiences. Key Features Cheaper, lighter, smaller, and simpler Built around ESP 8266 Wifi module Supports Plug-n-Play Groves Visual Configuration OTA (Over-The-Air) Firmware Updates RESTful APIs IFTTT Application Android & iOS APPs Technical details Dimensions 28mm x28mm x6.7mm Weight G.W 10g Battery Exclude Wi-Fi Network Protocol 802.11b/g/n Wi-Fi Encryption Technologies WEP/TKIP/AES Expansion (2x Grove Connectors) UART0/I2C0/D0, Analog/I2C1/D1 Operating Voltage 3V3 Maximum Charge Current 500mA Digital I/O Pins 4 Analog Input Pins 1 DC Current PER I/O PIN 12mA Flash Memory 4MByte (W25Q32B) Input Voltage Battery holder 3.0~4.2V Micro USB 5V Part List Wio Node 1 ECCN/HTS HSCODE 8543909000 USHSCODE 8517620090 UPC 841454117742
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