Description:

ST takes flight in this Feather board. The new STM32F405 Feather (video) that we designed runs CircuitPython at a blistering 168MHz – our fastest CircuitPython board ever! We put a STEMMA QT / Qwiic port on the end, so you can really easily plug and play I2C sensors.

This Feather has lots of goodies:

• STM32F405 Cortex M4 with FPU and 1MB Flash, 168MHz speed
• 192KB RAM total - 128 KB RAM for general usage + 64 KB program-only/cache RAM
• 3.3V logic, but almost all pins are 5V compliant!
• USB C power and data - our first USB C Feather!
• LiPo connector and charger
• SD socket on the bottom, connected to SDIO port
• 2 MB SPI Flash chip
• Built in NeoPixel indicator
• I2C, UART, GPIO, ADCs, DACs
• Qwiic/STEMMA-QT connector for fast I2C connectivity
• We use the built-in USB DFU bootloader to load firmware. It does not come with a UF2 bootloader.