Last year, Seeed Studio introduced Air602 WiFi module, a competitor to ESP8266 based on Winner Micro W600 Arm Cortex-M3 microcontroller and selling for $1.90. The module was clearly optimized for cost and size since it offered only a few I/Os, and there was absolutely no mention about FCC or CE certifications.
The company has now launched another W600 module, slightly larger to expose more I/Os, and pre-certified to comply with FCC and CE requirements. W600 certified WiFi module is offered standalone, or fitted to “Grove – W600” module for easy connection to Arduino boards.
- WiSoC – Winner Micro W600 Arm Cortex-M3 microcontroller with 1MB Flash, RF Transceiver, CMOS PA, BaseBand
- WiFi Connectivity – 802.11 b/g/n up to 150 Mbps
- Frequency – 2.4~2.4835 GHz
- Features – Wi-Fi WMM, WMM-PS, WPA/WPA2, WPS
- Protocols – TCP, UDP, ICMP, DHCP, DNS, HTTP
- Access Point and Station modes
- PCB antenna
- Expansion – 25x castellated holes with 2x UART, 2x SPI, up to 16x GPIOs, 5x PWM, I2C, I2S, reset, wake-up, and power signals (3.3V/GND)
- Operating Voltage – 3.3V
- Dimensions – 20 x 15 mm
- Certifications – CE/FCC
The module targets wireless audio and video, smart home and smart toys.
In order to easily add WiFi connectivity to Arduino board, Seeed Studio also designed Grove – W600 module.
- Wireless Module – W600 module
- UART Grove connector
- W600 module pins brought out on the back of the board (no photo available)
- Misc – 2x buttons (Reset & Config), 3x LED indicators (Power, Reset & Wifi)
- Dimensions – 50 x 25 mm
W600 module runs FreeRTOS and can be controlled by an “AT+ instruction protocol based on ASCII encoding” through its UART interface. But the company is also working on Arduino support for Q2 2019, and MicroPython support is scheduled to follow in Q3 2019. The company also mentioned an Android/IOS app that supports One Shot Activity function to connect and disconnect the WiFi network by pressing a single button.
The only documentation linked in the product page points to an Arduino board files in Github. Grove – W600 board will eventually work as a standalone Arm Cortex-M3 board but the SDK does not support I2S/I2C/SPI/GPIO pins as those are currently controlled through the AT+ command set.