Adafruit ItsyBitsy ESP32
Adafruit ItsyBitsy ESP32 is a development board based on the ESP32 microcontroller using XTENSA architecture.
This board features a maximum CPU frequency of 240 MHz and 8MB flash memory.
About Adafruit ItsyBitsy ESP32
Small ESP32 board in ItsyBitsy format - ideal for low-power wireless projects in compact enclosures.
Technical Specifications
Complete technical specification details for Adafruit ItsyBitsy ESP32
Quick Setup
Copy-paste configs for Adafruit ItsyBitsy ESP32 - auto‑generated from this board's exact hardware specs.
In Arduino IDE 2 select Adafruit Itsybitsy Esp32 from the esp32 by Espressif package. In PlatformIO use board = esp32dev. ESP32 · 240 MHz · 8MB · DIO.
In Arduino IDE 2, open Boards Manager, search "esp32" by Espressif and install it. Then go to Tools → Board and select "Adafruit Itsybitsy Esp32" for the Adafruit ItsyBitsy ESP32.
Adafruit ItsyBitsy ESP32 Pinout Diagram
Complete pin reference for Adafruit ItsyBitsy ESP32
Useful Links
Datasheets and resources for Adafruit ItsyBitsy ESP32
Pin Mappings
Complete pinout and GPIO mapping for Adafruit ItsyBitsy ESP32
| Pin | Analog | Touch | PWM | Other |
|---|---|---|---|---|
| 0 | ||||
| 2 | PWM | NEOPIXEL_POWER | ||
| 4 | A2 | T0 | PWM | |
| 8 | PWM | RX | ||
| 12 | T5 | PWM | ||
| 13 | T4 | PWM | LED_BUILTIN | |
| 14 | T6 | PWM | ||
| 15 | T3 | PWM | SDA | |
| 19 | PWM | SCK | ||
| 20 | PWM | TX | ||
| 21 | PWM | MOSI | ||
| 22 | PWM | MISO | ||
| 25 | A0 | PWM | DAC1 | |
| 26 | A1 | PWM | DAC2 | |
| 27 | T7 | PWM | SCL | |
| 32 | T9 | PWM | SS | |
| 33 | T8 | PWM | ||
| 35 | BUTTON | |||
| 36 | A5 | |||
| 37 | A4 | |||
| 38 | A3 |
Default Tools & Configuration
Build and upload settings for Adafruit ItsyBitsy ESP32
| Setting | Value |
|---|---|
| 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 bytes) |
| Maximum data size | 320 KB (327680 bytes) |
The Adafruit ItsyBitsy ESP32 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
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