Wio core is Wi-Fi module with ESP8266 chip embedded. And it is equivalent to ESP-WROOM-02® except that we replace original firmware with firmware of Wio platform. So you can use this module to customize your own microcontroller board for IoT applications. The best thing of Wio Core is that you can still use resources of Wio platform. For example, you can use Wio App on your mobile phones for visual programming. Wio core integrates TCP/IP network stacks, 10-bit ADC, and HSPI/UART/PWM/I2C/I2S interfaces.
For ESP-WROOM-02®, it is FCC, CE, KCC, TELEC, LCIE and IC certified with the best FCC results for IoT modules in the industry. As for Wio Core, it can be easily integrated into space-limited devices due to its small size of only 18mm x 20mm. Wio Core can operate in the low power modes. For instance, if it operates in DTIM10, it only consumes 1.2mW while maintaining a Wi-Fi connection. The module also integrates an SPI flash of 16 Mbits used for storing user programs, data and firmware.
Entry level for using Wio Core is lowered by Seeed. We have provided detailed instructions for integrating this module into your applications. (we will cover it later). You can also tailor the firmware to your demands because it is completely open source.
|Product version||Release date||Support status||Notes|
|Wio Core(v1.0, latest version)||July 2016||Supported||None|
|Wi-Fi protocols||802.11 b/g/n|
|Frequency range||2.4 GHz–2.5 GHz (2400M–2483.5M)|
|Operating current||Average: 80 mA|
|Operating temperature range||-40°C–125°C|
|Package size||18mm(length) × 20mm(width) × 3mm(depth)(for normal silk-reading orientation)|
|Flash memory size||4Mbyte|
|Software||Firmware||Wio Firmware with OTA capability|
|User interface||Cloud Server, Android/iOS App|
|Wio core||one piece|
To understand and customize a microcontroller(board) to be compatible with Wio platform, you need to download instructions.
To understand and customize a microcontroller(board) for general applications, you need to download instructions(provided by Espressif®) at https://espressif.com/en/products/hardware/esp-wroom-02/resources.
We use the latest firmware(firmware of Wio platform) then for each module before shipment, so you can update your firmware through mobile phone App. Find more details at http://www.seeedstudio.com/wiki/Wio_Link#Step_5:_Download_firmware.
Instructions to customize this module for your project:
About Wio platform:
Certificates of ESP-WROOM-02:
Latest firmware(at the time of writing this page)
More demo for Wio platform:
Download Eagle package file