Adafruit ESP32 Feather Development Board
Code name: FEATHER_ESP32
Adafruit ESP32 Feather development board is based on esp32 microcontroller and uses xtensa architecture. This board has a maximum CPU frequency of 240 MHz and a flash size of 4MB.
About Adafruit ESP32 Feather
Feather-format ESP32 board with LiPo charging — great for wireless projects using CircuitPython or Arduino.
Technical Specifications
🛰️ Connectivity
🧠 Microcontroller
✨ Features
- 40 digital IO pins
- 16 external interrupt pins
- 16 analog input pins
- 17 PWM pins
Adafruit ESP32 Feather Useful Links
Adafruit ESP32 Feather Pins Mapping Arduino IDE
Below you can find the Adafruit ESP32 Feather pinout. This development board provides 40 digital IO pins, out of which 16 can be used as external interrupt pins, 16 as analog input pins and 17 pins have Pulse-Width Modulation (PWM).
| Pin | Analog | Touch | PWM | Other |
|---|---|---|---|---|
| 4 | A5 | T0 | PWM | |
| 5 | PWM | SCK | ||
| 12 | A11 | T5 | PWM | |
| 13 | A12 | T4 | PWM | LED_BUILTIN |
| 14 | A6 | T6 | PWM | |
| 15 | A8 | T3 | PWM | |
| 16 | PWM | RX | ||
| 17 | PWM | TX | ||
| 18 | PWM | MOSI | ||
| 19 | PWM | MISO | ||
| 22 | PWM | SCL | ||
| 23 | PWM | SDA | ||
| 25 | A1 | PWM | DAC1 | |
| 26 | A0 | PWM | DAC2 | |
| 27 | A10 | T7 | PWM | |
| 32 | A7 | T9 | PWM | |
| 33 | A9 | T8 | PWM | SS |
| 34 | A2 | |||
| 35 | A13 | BATT_MONITOR | ||
| 36 | A4 | |||
| 39 | A3 |
Default Tools
| Bootloader tool | esptool_py |
| Uploader tool | esptool_py |
| Network uploader tool | esp_ota |
| Bootloader address | 0x1000 |
| Flash mode | dio |
| Boot mode | dio |
| Maximum upload size | 1280 Kb (1310720 B) |
| Maximum data size | 320 Kb (327680 B) |
The Adafruit ESP32 Feather 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 ESP32 Feather development board by default is dio and dio respectively.
