Adafruit Metro ESP32-S2 Development Board
Code name: METRO_ESP32S2
Adafruit Metro ESP32-S2 development board is based on esp32s2 microcontroller and uses xtensa architecture. This board has a maximum CPU frequency of 240 MHz and a flash size of 4MB.
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
🛰️ Connectivity
🧠 Microcontroller
✨ Features
- 48 digital IO pins
- 46 external interrupt pins
- 20 analog input pins
- 27 PWM pins
Adafruit Metro ESP32-S2 Pinout
Adafruit Metro ESP32-S2 Pins Mapping Arduino IDE
Below you can find the Adafruit Metro ESP32-S2 pinout. This development board provides 48 digital IO pins, out of which 46 can be used as external interrupt pins, 20 as analog input pins and 27 pins have Pulse-Width Modulation (PWM).
| 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
| 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 B) |
| Maximum data size | 320 Kb (327680 B) |
The Adafruit Metro ESP32-S2 development board by default uses esptool_py uploader tool, esp_ota network uploader tool for Over-the-air (OTA) uploads and esptool_py bootloader tool. The bootloader starts at address "0x1000". Flash mode and boot mode for Adafruit Metro ESP32-S2 development board by default is dio and qio respectively.
