Adafruit ItsyBitsy ESP32 specs, pinout & datasheets
- Chip / SoC
- ESP32
- Clock
- 240 MHz
Imported entry: generated from open-source board definitions (platformio, circuitpython), not reviewed by a person. Each fact links to the definition it came from.
Specifications
Upload limits are what a sketch or firmware may use after the bootloader, as the build tools enforce them, not the chip’s full memory.
Can I still use it?
- Arduino framework
- Supported[1]Arduino framework available through PlatformIO.
- CircuitPython
- Supported[2]
As published by each project, checked weekly. A platform not listed has no published information here, which is not the same as no support.
Datasheets and documents
Pinout
Pin names in firmware (23 pins)
| Chip pin | Board names |
|---|---|
| GPIO0 | NEOPIXEL |
| GPIO2 | NEOPIXEL_POWER |
| GPIO4 | A2 |
| GPIO5 | D5 |
| GPIO7 | D7 |
| GPIO8 | RX |
| GPIO12 | D12 |
| GPIO13 | D13, LED |
| GPIO14 | D14 |
| GPIO15 | SDA |
| GPIO19 | SCK |
| GPIO20 | TX |
| GPIO21 | MOSI |
| GPIO22 | MISO |
| GPIO25 | A0 |
| GPIO26 | A1 |
| GPIO27 | SCL |
| GPIO32 | D32 |
| GPIO33 | D33 |
| GPIO35 | BUTTON |
| GPIO36 | A5 |
| GPIO37 | A4 |
| GPIO38 | A3 |
Sources
Spotted a mistake?
Every report is read by a person and checked against a source before anything changes. Please link one if you have it.