ESP32-PICO-MINI-02 vs ESP8684-WROOM-01C

ESP32-PICO-MINI-02

PICO · ESP32 · Active

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ESP8684-WROOM-01C

WROOM · ESP32-C2 · Active

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Every figure here is checked against Espressif’s official datasheets. We’ve taken every care to keep it accurate — but datasheets are dense and mistakes happen, so if something looks off, please report it.

Which should you choose?

These run different SoCs (ESP32 vs ESP32-C2), so they differ in CPU, wireless and peripherals — not just packaging.

Choose ESP32-PICO-MINI-02 if you need

Bluetooth Classic (BR/EDR) for legacy SPP / A2DP audio
2 CPU cores vs 1 — more headroom for RTOS / parallel work
faster CPU (240 MHz, Xtensa LX6)
PSRAM for camera frames, audio buffers and LVGL/large displays
larger flash option (up to 8 MB) for bigger firmware and OTA

Choose ESP8684-WROOM-01C if you need

no standout advantage over ESP32-PICO-MINI-02 — it trades on the points opposite.

Size, to scale

ESP32-PICO-MINI-02 — 13.2×16.6 mm
ESP8684-WROOM-01C — 16×24 mm

Spec differences at a glance

CPU: ESP32-PICO-MINI-02 Xtensa LX6, 2-core · ESP8684-WROOM-01C RISC-V, 1-core
Max clock: ESP32-PICO-MINI-02 240 MHz · ESP8684-WROOM-01C 120 MHz
SRAM: ESP32-PICO-MINI-02 520 KB · ESP8684-WROOM-01C 272 KB
ROM: ESP32-PICO-MINI-02 448 KB · ESP8684-WROOM-01C 576 KB
Flash options: ESP32-PICO-MINI-02 8 MB · ESP8684-WROOM-01C 2 / 4 MB
PSRAM: ESP32-PICO-MINI-02 2 MB (quad) · ESP8684-WROOM-01C None
Co-processor: ESP32-PICO-MINI-02 ULP-FSM · ESP8684-WROOM-01C none
Bluetooth: ESP32-PICO-MINI-02 BT Classic + BLE · ESP8684-WROOM-01C BLE 5.x
Usable GPIO: ESP32-PICO-MINI-02 27 · ESP8684-WROOM-01C 14
ADC: ESP32-PICO-MINI-02 18× 12-bit · ESP8684-WROOM-01C 5× 12-bit
UART / SPI / I²C / I²S: ESP32-PICO-MINI-02 3 / 2 / 2 / 2 · ESP8684-WROOM-01C 2 / 1 / 1 / 0
TWAI (CAN): ESP32-PICO-MINI-02 Yes · ESP8684-WROOM-01C No
SD/MMC: ESP32-PICO-MINI-02 Yes · ESP8684-WROOM-01C No
Ethernet MAC: ESP32-PICO-MINI-02 Yes · ESP8684-WROOM-01C No
Touch: ESP32-PICO-MINI-02 10 · ESP8684-WROOM-01C 0
Deep sleep: ESP32-PICO-MINI-02 10 µA · ESP8684-WROOM-01C 5 µA
Dimensions: ESP32-PICO-MINI-02 13.2 × 16.6 × 2.4 mm · ESP8684-WROOM-01C 16 × 24 × 3.1 mm
Pin count: ESP32-PICO-MINI-02 31 · ESP8684-WROOM-01C 23
Temp range: ESP32-PICO-MINI-02 -40 to 85 °C · ESP8684-WROOM-01C -40 to 105 °C
Crypto: ESP32-PICO-MINI-02 AES, SHA, RSA, RNG · ESP8684-WROOM-01C ECC, SHA, RNG

Compute & memory

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	ESP32-PICO-MINI-02	ESP8684-WROOM-01C
CPU≠	Xtensa LX6, 2-core	RISC-V, 1-core
Max clock≠	240 MHz	120 MHz
SRAM≠	520 KB	272 KB
ROM≠	448 KB	576 KB
Flash options≠	8 MB	2 / 4 MB
PSRAM≠	2 MB (quad)	None
Co-processor≠	ULP-FSM	none

Wireless

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	ESP32-PICO-MINI-02	ESP8684-WROOM-01C
Wi-Fi	Wi-Fi 4	Wi-Fi 4
Wi-Fi bands	2.4GHz	2.4GHz
Bluetooth≠	BT Classic + BLE	BLE 5.x
802.15.4 (Thread/Zigbee)	No	No
Antenna	PCB	PCB

Peripherals & I/O

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	ESP32-PICO-MINI-02	ESP8684-WROOM-01C
Usable GPIO≠	27	14
ADC≠	18× 12-bit	5× 12-bit
USB	USB-Serial(external)	USB-Serial(external)
UART / SPI / I²C / I²S≠	3 / 2 / 2 / 2	2 / 1 / 1 / 0
TWAI (CAN)≠	Yes	No
SD/MMC≠	Yes	No
Ethernet MAC≠	Yes	No
Touch≠	10	0

Power

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	ESP32-PICO-MINI-02	ESP8684-WROOM-01C
Operating voltage	3.0-3.6 V	3.0-3.6 V
Deep sleep≠	10 µA	5 µA

Physical

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	ESP32-PICO-MINI-02	ESP8684-WROOM-01C
Dimensions≠	13.2 × 16.6 × 2.4 mm	16 × 24 × 3.1 mm
Pin count≠	31	23
Temp range≠	-40 to 85 °C	-40 to 105 °C
Mounting	SMD castellated	SMD castellated
Lifecycle	Active	Active

Security

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	ESP32-PICO-MINI-02	ESP8684-WROOM-01C
Secure boot	Yes	Yes
Flash encryption	Yes	Yes
Crypto≠	AES, SHA, RSA, RNG	ECC, SHA, RNG
Digital signature	No	No
TRNG	Yes	Yes