
Adafruit Metro ESP32-S2 is a development board based on the ESP32S2 microcontroller using XTENSA architecture.
This board features a maximum CPU frequency of 240 MHz and 4MB flash memory.
About Adafruit Metro ESP32-S2
Full-size ESP32-S2 dev board with USB-C and STEMMA QT - great for breadboarding and secure applications.
📋 Technical Specifications
Complete technical specification details for Adafruit Metro ESP32-S2
🛰️ Connectivity
🧠 Microcontroller
✨ Features & Pins
Adafruit Metro ESP32-S2 Pinout Diagram
Complete pin reference for Adafruit Metro ESP32-S2

Useful Links
Datasheets and resources for Adafruit Metro ESP32-S2
Pin Mappings
Complete pinout and GPIO mapping for Adafruit Metro ESP32-S2
| Pin | Analog | Touch | PWM | Other |
|---|---|---|---|---|
| 0 | ||||
| 1 | A2 | T1 | PWM | NEOPIXEL_NUM |
| 2 | A3 | T2 | PWM | |
| 3 | A4 | T3 | PWM | |
| 4 | A5 | T4 | PWM | |
| 5 | A6 | T5 | PWM | TX |
| 6 | A7 | T6 | PWM | RX |
| 7 | A8 | T7 | PWM | |
| 8 | A9 | T8 | PWM | |
| 9 | A10 | T9 | PWM | |
| 10 | A11 | T10 | PWM | |
| 11 | A12 | T11 | PWM | |
| 12 | A13 | T12 | PWM | |
| 13 | A14 | T13 | PWM | |
| 14 | A15 | T14 | PWM | |
| 15 | A16 | PWM | ||
| 16 | A17 | PWM | ||
| 17 | A0 | PWM | DAC1 | |
| 18 | A1 | PWM | DAC2 | |
| 19 | A18 | PWM | ||
| 20 | A19 | PWM | ||
| 33 | PWM | SDA | ||
| 34 | PWM | SCL | ||
| 35 | PWM | MOSI | ||
| 36 | PWM | SCK | ||
| 37 | PWM | MISO | ||
| 42 | PWM | LED_BUILTIN SS | ||
| 45 | PWM |
Default Tools & Configuration
Build and upload settings for Adafruit Metro ESP32-S2
| Setting | Value |
|---|---|
| Bootloader tool | esptool_py |
| Uploader tool | esptool_py |
| Network uploader tool | esp_ota |
| Bootloader address | 0x1000 |
| Flash mode | dio |
| Boot mode | qio |
| Maximum upload size | 1280 KB (1310720 bytes) |
| Maximum data size | 320 KB (327680 bytes) |
The Adafruit Metro ESP32-S2 uses esptool_py for uploads , esp_ota for OTA updates, and esptool_py bootloader at 0x1000.
Flash mode: dio | Boot mode: qio
Max sketch size: 1280 KB | Max data size: 320 KB
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