The Wio Node is the compact, low‑cost member of the Wio Link family, built around the ESP8266 Wi‑Fi module. It supports plug‑and‑play Grove connectors, visual configuration, OTA firmware updates, and RESTful APIs, making IoT prototyping fast and simple. Despite its small size, the Wio Node can connect to multiple Grove sensors and actuators, allowing you to build an IoT application in just 5 minutes without breadboarding or soldering. Description The Wio Node is a smaller, lighter, and cheaper version of the Wio Link. It retains most of the features of its elder brother, including ESP8266 Wi‑Fi connectivity, Grove compatibility, OTA firmware updates, and RESTful APIs. With two Grove connectors, it offers 2 Digital I/O, 1 Analog input, 1 UART, and 2 I2C interfaces, supporting up to 42 Grove modules. This makes it ideal for rapid IoT prototyping and low‑cost IoT deployments. Key Features Compact, low‑cost, lightweight design Built around ESP8266 Wi‑Fi module Supports plug‑and‑play Grove connectors Visual configuration via mobile apps OTA (Over‑The‑Air) firmware updates RESTful APIs for easy integration Android & iOS apps available IFTTT function EOL, but Wio APP API supported Specifications Wi‑Fi Protocols 802.11 b/g/n Encryption WEP/TKIP/AES Expansion 2 Grove connectors (UART0/I2C0/D0, Analog/I2C1/D1) Operating Voltage 3.3V Max Charge Current 500 mA Digital I/O Pins 4 Analog Input Pins 1 DC Current per I/O Pin 12 mA Flash Memory 4 MB (W25Q32B) Battery Holder 3.0–4.2V Micro USB 5V Dimensions 28 × 28 × 6.7 mm Weight 10 g Certification HSCODE 8543909000 USHSCODE 8543903500 UPC 841454117742 EUHSCODE 8543709099 COO China Documents API Reference Server Deployment Guide Driver Development Guide Source Code on GitHub Schematic PDF Schematic Eagle Files Certification Files Part List Wio Node 1 FAQ 1. How is Wio Node different from Wio Link? It is smaller, lighter, and cheaper, but offers fewer Grove connectors (2 vs. more on Wio Link). 2. Does it support OTA updates? Yes. Firmware can be updated over‑the‑air. 3. Can I use it with Grove modules? Yes. It supports plug‑and‑play Grove sensors and actuators. 4. Is IFTTT supported? The original IFTTT function is EOL, but you can still use the Wio APP API for automation. 5. How quickly can I build an IoT application? With Grove modules and OTA firmware, you can set up an IoT device in about 5 minutes. Application Scenarios Smart home IoT nodes Wearables and mobile devices Cloud‑connected sensors Educational IoT prototyping Low‑cost IoT deployments
