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