ESP32-C6-WROOM-1 vs ESP32-PICO-MINI-02

ESP32-C6-WROOM-1

WROOM · ESP32-C6 · Active

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ESP32-PICO-MINI-02

PICO · ESP32 · 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-C6 vs ESP32), so they differ in CPU, wireless and peripherals — not just packaging.

Choose ESP32-C6-WROOM-1 if you need

Wi-Fi 6 — better battery life and throughput in busy networks
802.15.4 radio for Thread, Zigbee and Matter-over-Thread mesh
larger flash option (up to 16 MB) for bigger firmware and OTA

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
Ethernet MAC for wired networking (add an external PHY)

Size, to scale

ESP32-C6-WROOM-1 — 18×25.5 mm
ESP32-PICO-MINI-02 — 13.2×16.6 mm

Spec differences at a glance

CPU: ESP32-C6-WROOM-1 RISC-V, 1-core · ESP32-PICO-MINI-02 Xtensa LX6, 2-core
Max clock: ESP32-C6-WROOM-1 160 MHz · ESP32-PICO-MINI-02 240 MHz
SRAM: ESP32-C6-WROOM-1 512 KB · ESP32-PICO-MINI-02 520 KB
ROM: ESP32-C6-WROOM-1 320 KB · ESP32-PICO-MINI-02 448 KB
Flash options: ESP32-C6-WROOM-1 4 / 8 / 16 MB · ESP32-PICO-MINI-02 8 MB
PSRAM: ESP32-C6-WROOM-1 None · ESP32-PICO-MINI-02 2 MB (quad)
Co-processor: ESP32-C6-WROOM-1 ULP-RISC-V · ESP32-PICO-MINI-02 ULP-FSM
Wi-Fi: ESP32-C6-WROOM-1 Wi-Fi 6 · ESP32-PICO-MINI-02 Wi-Fi 4
Bluetooth: ESP32-C6-WROOM-1 BLE 5.x · ESP32-PICO-MINI-02 BT Classic + BLE
802.15.4 (Thread/Zigbee): ESP32-C6-WROOM-1 Yes · ESP32-PICO-MINI-02 No
Usable GPIO: ESP32-C6-WROOM-1 23 · ESP32-PICO-MINI-02 27
ADC: ESP32-C6-WROOM-1 7× 12-bit · ESP32-PICO-MINI-02 18× 12-bit
USB: ESP32-C6-WROOM-1 USB-Serial-JTAG · ESP32-PICO-MINI-02 USB-Serial(external)
UART / SPI / I²C / I²S: ESP32-C6-WROOM-1 2 / 1 / 2 / 1 · ESP32-PICO-MINI-02 3 / 2 / 2 / 2
Ethernet MAC: ESP32-C6-WROOM-1 No · ESP32-PICO-MINI-02 Yes
Touch: ESP32-C6-WROOM-1 0 · ESP32-PICO-MINI-02 10
Deep sleep: ESP32-C6-WROOM-1 7 µA · ESP32-PICO-MINI-02 10 µA
Dimensions: ESP32-C6-WROOM-1 18 × 25.5 × 3.1 mm · ESP32-PICO-MINI-02 13.2 × 16.6 × 2.4 mm
Pin count: ESP32-C6-WROOM-1 29 · ESP32-PICO-MINI-02 31
Crypto: ESP32-C6-WROOM-1 AES, SHA, RSA, HMAC, ECC, RNG · ESP32-PICO-MINI-02 AES, SHA, RSA, RNG
Digital signature: ESP32-C6-WROOM-1 Yes · ESP32-PICO-MINI-02 No

Compute & memory

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	ESP32-C6-WROOM-1	ESP32-PICO-MINI-02
CPU≠	RISC-V, 1-core	Xtensa LX6, 2-core
Max clock≠	160 MHz	240 MHz
SRAM≠	512 KB	520 KB
ROM≠	320 KB	448 KB
Flash options≠	4 / 8 / 16 MB	8 MB
PSRAM≠	None	2 MB (quad)
Co-processor≠	ULP-RISC-V	ULP-FSM

Wireless

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	ESP32-C6-WROOM-1	ESP32-PICO-MINI-02
Wi-Fi≠	Wi-Fi 6	Wi-Fi 4
Wi-Fi bands	2.4GHz	2.4GHz
Bluetooth≠	BLE 5.x	BT Classic + BLE
802.15.4 (Thread/Zigbee)≠	Yes	No
Antenna	PCB	PCB

Peripherals & I/O

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	ESP32-C6-WROOM-1	ESP32-PICO-MINI-02
Usable GPIO≠	23	27
ADC≠	7× 12-bit	18× 12-bit
USB≠	USB-Serial-JTAG	USB-Serial(external)
UART / SPI / I²C / I²S≠	2 / 1 / 2 / 1	3 / 2 / 2 / 2
TWAI (CAN)	Yes	Yes
SD/MMC	Yes	Yes
Ethernet MAC≠	No	Yes
Touch≠	0	10

Power

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	ESP32-C6-WROOM-1	ESP32-PICO-MINI-02
Operating voltage	3.0-3.6 V	3.0-3.6 V
Deep sleep≠	7 µA	10 µA

Physical

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	ESP32-C6-WROOM-1	ESP32-PICO-MINI-02
Dimensions≠	18 × 25.5 × 3.1 mm	13.2 × 16.6 × 2.4 mm
Pin count≠	29	31
Temp range	-40 to 85 °C	-40 to 85 °C
Mounting	SMD castellated	SMD castellated
Lifecycle	Active	Active

Security

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	ESP32-C6-WROOM-1	ESP32-PICO-MINI-02
Secure boot	Yes	Yes
Flash encryption	Yes	Yes
Crypto≠	AES, SHA, RSA, HMAC, ECC, RNG	AES, SHA, RSA, RNG
Digital signature≠	Yes	No
TRNG	Yes	Yes