Adafruit Metro ESP32-S3 with 16 MB Flash 8 MB PSRAM

The Adafruit Metro ESP32-S3 is a powerful and compact development board featuring the ESP32-S3 dual-core 240MHz Tensilica processor, designed for IoT and wearable electronics applications. It supports native USB functions such as keyboard/mouse, MIDI, and disk drive emulation.

This board integrates a WROOM module with FCC/CE certification and is equipped with 16 MB Flash and 8 MB Octal PSRAM, along with 512KB SRAM. It provides versatile power options via USB type C or LiPoly battery with built-in charging capabilities and includes a MAX17048 LiPoly battery monitor chip for voltage and state of charge monitoring over I2C.

Additional features include reset and DFU (BOOT0) buttons, a JTAG 2x5 header for debugging, serial debug output pins, and a STEMMA QT connector for I2C devices with switchable power for low power mode. The onboard LEDs and NeoPixel are designed for controlled power consumption, enabling low power usage at approximately 100uA in deep sleep mode.

• ESP32-S3 Dual Core 240MHz Tensilica processor with native USB connectivity
• 16 MB Flash and 8 MB Octal PSRAM WROOM module with FCC/CE certification
• USB Type-C or LiPoly battery power options with built-in charging
• MAX17048 LiPoly battery monitor chip with I2C reporting
• Reset and DFU (BOOT0) buttons for easy bootloader access
• JTAG 2x5 header and serial debug output pins for advanced debugging
• STEMMA QT connector for I2C peripherals with switchable power
• Onboard LEDs and NeoPixel with pin-controlled power for low power operation
• Low power consumption with ~100uA current draw in deep sleep mode
• Compatible with ESP-IDF, Arduino, and CircuitPython environments

This board is ideal for those looking to add efficient WiFi capabilities, ample memory, and native USB functionality to their projects while maintaining shield compatibility.