Adafruit Metro ESP32-S2

The ESP32-S2 is a highly-integrated, low-power, 2.4 GHz Wi-Fi System-on-Chip (SoC) solution that now has built-in native USB as well as some other interesting new technologies like Time of Flight distance measurements. With its state-of-the-art power and RF performance, this SoC is an ideal choice for a wide variety of application scenarios relating to the Internet of Things (IoT), wearable electronics, and smart homes.

Features:

• ESP32-S2 240MHz Tensilica processor - the next generation of ESP32, now with native USB so it can act like a keyboard/mouse, MIDI device, disk drive, etc!
• WROVER module has FCC/CE certification and comes with 4 MByte of Flash and 2 MByte of PSRAM - you can have huge data buffers
• Lotsa power options - 6-12VDC barrel jack or USB type C or Lipoly battery
• Built-in battery charging when powered over DC or USB
• Precision battery monitoring via MAX17048 on I2C
• UNO-shape so shields can plug in
• Reset and DFU (BOOT0) buttons to get into the ROM bootloader (which is a USB serial port so you don't need a separate cable!)
• Serial debug pins (optional, for checking the hardware serial debug console)
• JTAG pads for advanced debugging access.
• On/Off switch
• STEMMA QT connector for I2C devices
• On/Charge/User LEDs + status NeoPixel
• Works with Arduino or CircuitPython
• 53.2mm x 72mm
• Height (w/ barrel jack): 14.8mm
• Weight: 22.5g