Adafruit WICED WiFi Feather - STM32F205 with Cypress WICED WiFi

The Adafruit WICED WiFi Feather combines a powerful STM32F205RG ARM Cortex M3 processor running at 120 MHz with a BCM43362 802.11b/g/n WiFi radio, all in the compact Feather form factor. With TLS 1.2 support, it provides secure HTTPS and TCP connections for IoT projects.

Programmed via the Arduino IDE with local compilation and USB flashing — no cloud toolchains required. Built-in libraries for TCP client/server, HTTP client/server, MQTT (with Adafruit IO support), and Amazon AWS IoT make it easy to connect your project to the web.

Key Features

• STM32F205RG MCU – 120 MHz ARM Cortex M3 with 128KB SRAM and 1024KB flash
• BCM43362 WiFi – 802.11b/g/n radio with TLS 1.2 support
• 16KB SRAM + 128KB Flash – Available for user code
• 2MB SPI Flash – Additional data storage (16 Mbit)
• Built-in RTC – Real-time clock with optional external battery
• 12 GPIO Pins – Plus additional GPIOs via SPI, UART, and I2C pins
• Up to 8× 12-Bit ADC – Analog inputs for sensor reading
• 2× 12-Bit DAC – Analog outputs on Pin A4
• 7 PWM Outputs – Additional outputs available on alternate pins
• Up to 3 UARTs – Including one with full hardware flow control
• LiPo Charging & Monitoring – On-board single-cell battery management
• USB Bootloader – Fast firmware flashing from Arduino IDE
• Compact Size – 51 × 23 × 8 mm, 5.7 g

Ideal For

• Secure IoT applications requiring TLS 1.2
• WiFi-connected sensor and data logging projects
• MQTT and Adafruit IO cloud integrations
• AWS IoT connected devices

Feather Ecosystem

Compatible with the full range of Feather Wings and the broader Feather family of boards.

Package Contents

• 1× Adafruit WICED WiFi Feather (fully assembled and tested)
• 1× Header strip for soldering

Resources

• Adafruit WICED Feather Guide – Setup, Arduino IDE configuration, and project tutorials
• Arduino STM32 / Maple Project (GitHub)