Adafruit Metro ESP32-S2

Hardware

Platform Espressif 32: ESP32 is a series of low-cost, low-power system on a chip microcontrollers with integrated Wi-Fi and Bluetooth. ESP32 integrates an antenna switch, RF balun, power amplifier, low-noise receive amplifier, filters, and power management modules.

Microcontroller

ESP32S2

Frequency

240MHz

Flash

4MB

RAM

320KB

Vendor

Adafruit

Configuration

Please use adafruit_metro_esp32s2 ID for board option in “platformio.ini” (Project Configuration File):

[env:adafruit_metro_esp32s2]
platform = espressif32
board = adafruit_metro_esp32s2

You can override default Adafruit Metro ESP32-S2 settings per build environment using board_*** option, where *** is a JSON object path from board manifest adafruit_metro_esp32s2.json. For example, board_build.mcu, board_build.f_cpu, etc.

[env:adafruit_metro_esp32s2]
platform = espressif32
board = adafruit_metro_esp32s2

; change microcontroller
board_build.mcu = esp32s2

; change MCU frequency
board_build.f_cpu = 240000000L

Uploading

Adafruit Metro ESP32-S2 supports the following uploading protocols:

  • cmsis-dap

  • esp-bridge

  • esp-prog

  • espota

  • esptool

  • iot-bus-jtag

  • jlink

  • minimodule

  • olimex-arm-usb-ocd

  • olimex-arm-usb-ocd-h

  • olimex-arm-usb-tiny-h

  • olimex-jtag-tiny

  • tumpa

Default protocol is esptool

You can change upload protocol using upload_protocol option:

[env:adafruit_metro_esp32s2]
platform = espressif32
board = adafruit_metro_esp32s2

upload_protocol = esptool

Debugging

Debugging - “1-click” solution for debugging with a zero configuration.

Warning

You will need to install debug tool drivers depending on your system. Please click on compatible debug tool below for the further instructions and configuration information.

You can switch between debugging Tools & Debug Probes using debug_tool option in “platformio.ini” (Project Configuration File).

Adafruit Metro ESP32-S2 does not have on-board debug probe and IS NOT READY for debugging. You will need to use/buy one of external probe listed below.

Compatible Tools

On-board

Default

CMSIS-DAP

Yes

esp-bridge

ESP-Prog

oddWires IOT-Bus JTAG

J-LINK

Mini-Module FT2232H

Olimex ARM-USB-OCD

Olimex ARM-USB-OCD-H

Olimex ARM-USB-TINY-H

Olimex ARM-USB-TINY

TIAO USB Multi-Protocol Adapter (TUMPA)

Frameworks

Name

Description

Arduino

Arduino Wiring-based Framework allows writing cross-platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding, interactive objects, spaces or physical experiences.

Espressif IoT Development Framework

Espressif IoT Development Framework. Official development framework for ESP32 chip