Adafruit Feather ESP32-S2 Development Board

Code name: ADAFRUIT_FEATHER_ESP32S2

Adafruit Feather 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 Feather ESP32-S2

ESP32-S2 Feather board with USB-C and STEMMA QT β€” ideal for secure, battery-powered IoT projects.

Technical Specifications

πŸ›°οΈ Connectivity

WiFi 802.11 b/g/n 2.4 GHz
Bluetooth -
BLE -

🧠 Microcontroller

Model esp32s2
Clock Speed 240 MHz
Flash Size 4MB
Architecture xtensa

✨ Features

  • 48 digital IO pins
  • 46 external interrupt pins
  • 20 analog input pins
  • 25 PWM pins

Adafruit Feather ESP32-S2 Pinout

Adafruit Feather ESP32-S2 Pins Mapping Arduino IDE

Below you can find the Adafruit Feather 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 25 pins have Pulse-Width Modulation (PWM).

PinAnalogTouchPWMOther
1PWMNEOPIXEL_NUM
3PWMSDA
4PWMSCL
5T5PWM
6T6PWM
7PWMI2C_POWER
8A5T8PWM
9T9PWM
10T10PWM
11T11PWM
12T12PWM
13T13PWMLED_BUILTIN
14A4T14PWM
15A3PWM
16A2PWM
17A1PWMDAC1
18A0PWMDAC2
21PWMNEOPIXEL_POWER
33PWM
35PWMMOSI
36PWMSCK
37PWMMISO
38PWMRX
39PWMTX
42PWMSS
Analog Analog input pins
Touch Touch pins
Function Function pins
RX / TX Receive/Transmit
LED_BUILTIN Built-in LED
PWM Pulse-Width Modulation

Default Tools

Bootloader toolesptool_py
Uploader toolesptool_py
Network uploader toolesp_ota
Bootloader address0x1000
Flash modedio
Boot modeqio
Maximum upload size
1280 Kb
(1310720 B)
Maximum data size
320 Kb
(327680 B)

The Adafruit Feather 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 Feather ESP32-S2 development board by default is dio and qio respectively.