Compare

ESP32 DevKit V1 (30-pin) vs Arduino Uno R3

Specs side by side, with the best value in each row highlighted. Choose different boards below to build your own comparison.

Board 1

Board 2

Board 3 (optional)

The short version

›Wi-Fi: only the ESP32 DevKit V1 (30-pin) has it.
›Bluetooth LE: only the ESP32 DevKit V1 (30-pin) has it.
›Price: the ESP32 DevKit V1 (30-pin) is cheaper ($8 vs $28).
›Speed: the ESP32 DevKit V1 (30-pin) runs faster (240 MHz vs 16 MHz).
›Memory: the ESP32 DevKit V1 (30-pin) has more RAM (520 KB vs 2 KB).
›Pins: the ESP32 DevKit V1 (30-pin) offers more GPIO (25 vs 20).
›Battery life: the ESP32 DevKit V1 (30-pin) sleeps at much lower current (10 µA vs 30 mA).
›Logic level: ESP32 DevKit V1 (30-pin) is 3.3 V, Arduino Uno R3 is 5 V.

Specification comparison: ESP32 DevKit V1 (30-pin), Arduino Uno R3
Spec	ESP32 DevKit V1 (30-pin)	Arduino Uno R3
Chip	ESP32-WROOM-32	ATmega328P
CPU	Xtensa LX6 dual-core	8-bit AVR
Clock	240 MHz (best)	16 MHz
Wi-Fi	Wi-Fi 4 (802.11 b/g/n) (best)	—
Bluetooth	Bluetooth 4.2 + BLE (best)	—
Zigbee / Thread	No	No
GPIO	25 (best)	20
ADC channels	15 × 12-bit (best)	6 × 10-bit
Flash	4 MB (best)	32 KB
RAM	520 KB (best)	2 KB
Logic level	3.3 V	5 V
Power input	5V USB or 5–12V VIN	7–12V barrel / 5V USB
Deep sleep (typ.)	~10 µA (best)	~30 mA
Active current (typ.)	~80 mA	~45 mA (best)
Form factor	Breadboard	Uno
USB	Micro-USB (CP2102/CH340)	USB-B (ATmega16U2)
Programming	Arduino, MicroPython, ESP-IDF, CircuitPython, PlatformIO	Arduino C++
Price (typ.)	$8 (best)	$28
Pinout	Interactive pinout	Interactive pinout

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