Introducing the FeatherS3[D] - The pro ESP32-S3 Development Board in the Feather Format by Unexpected Maker! This board features two antenna options with an onboard antenna and a u.FL connector for an external antenna, selectable via an RF switch in your code. The default onboard antenna ensures safe operation without external antenna connected.The FeatherS3[D] comes preloaded with the latest CircuitPython version supporting ESP32-S3 and includes the UF2 bootloader for easy CircuitPython firmware updates. Compatible with FeatherWings, this board enables diverse IoT and embedded projects. 32-bit Dual Core 240MHz processor with RISC-V ultra-low power core 2.4GHz WiFi 802.11b/g/n and Bluetooth 5 BLE + Mesh 16MB QSPI Flash and 8MB extra QSPI PSRAM USB-C connector with reverse USB back-feed protection Two 700mA 3.3V LDO regulators and ultra-low deep sleep current Two STEMMA connectors for easy sensor connection Low Power RGB LED and battery monitoring features 21 GPIO pins broken out, USB Serial JTAG 3D High Gain Antenna included Weighing only 4.2g, this compact and powerful board is perfect for your next embedded application.