Adafruit ESP32 Feather image

Adafruit ESP32 Feather

Development Board

Code name: FEATHER_ESP32
ESP32 ADAFRUIT

Adafruit ESP32 Feather is a development board based on the ESP32 microcontroller using XTENSA architecture.

This board features a maximum CPU frequency of 240 MHz and 4MB flash memory.

About Adafruit ESP32 Feather

Feather-format ESP32 board with LiPo charging - great for wireless projects using CircuitPython or Arduino.

📋 Technical Specifications

Complete technical specification details for Adafruit ESP32 Feather

🛰️ Connectivity

WiFi 802.11 b/g/n (2.4 GHz)
Bluetooth 4.2
BLE 4.2

🧠 Microcontroller

Model esp32
Clock Speed 240 MHz
Flash Size 4MB
Architecture xtensa

✨ Features & Pins

Digital IO 40
Analog Input 16
PWM 17
Interrupts 16

Useful Links

Datasheets and resources for Adafruit ESP32 Feather

ESP32 Datasheet

Microcontroller reference

Pin Mappings

Complete pinout and GPIO mapping for Adafruit ESP32 Feather

40
Digital I/O Pins
16
Interrupt Pins
16
Analog Inputs
17
PWM Pins
PinAnalogTouchPWMOther
4A5T0PWM
5PWMSCK
12A11T5PWM
13A12T4PWMLED_BUILTIN
14A6T6PWM
15A8T3PWM
16PWMRX
17PWMTX
18PWMMOSI
19PWMMISO
22PWMSCL
23PWMSDA
25A1PWMDAC1
26A0PWMDAC2
27A10T7PWM
32A7T9PWM
33A9T8PWMSS
34A2
35A13BATT_MONITOR
36A4
39A3
Legend
A0 Analog input
T0 Touch sensor
PWM PWM capable
RX/TX Serial pins
LED Built-in LED
# Pin number

Default Tools & Configuration

Build and upload settings for Adafruit ESP32 Feather

SettingValue
Bootloader toolesptool_py
Uploader toolesptool_py
Network uploader toolesp_ota
Bootloader address0x1000
Flash modedio
Boot modedio
Maximum upload size
1280 KB (1310720 bytes)
Maximum data size
320 KB (327680 bytes)
Configuration Summary

The Adafruit ESP32 Feather uses esptool_py for uploads , esp_ota for OTA updates, and esptool_py bootloader at 0x1000.

Flash mode: dio | Boot mode: dio

Max sketch size: 1280 KB | Max data size: 320 KB