arduino › microcontroller board
espressif Espressif ESP32 DevKitC v4
The reference 30-pin ESP32 dev board most tutorials assume. 3.3V logic only — feeding any 5V sensor signal into a GPIO will damage the chip over time.
Specifications
- mcu chip
- esp32_wroom_32
- clock mhz
- 240
- flash kb
- 4096
- sram kb
- 520
- wifi
- yes
- wifi band
- 2_4ghz
- bluetooth
- dual_mode
- usb
- micro_b
- gpio count
- 30
- analog inputs
- 18
- pwm pins
- 16
- i2c
- yes
- spi
- yes
- uart count
- 3
- operating voltage v
- 3.3
- input voltage range v
- 5
- power pins
- 3v3, 5v, vin
- firmware compat
- arduino_ide, esp_idf, micropython, platformio
- ai accelerator
- none
- form factor
- devkit
Sources
- SparkFun open product catalog · ingest 2026-05-06
- Adafruit open product catalog · ingest 2026-05-06