ESP32-S2-MINI-2 vs ESP8684-WROOM-01C
ESP32-S2-MINI-2
MINI · ESP32-S2 · Active
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ESP8684-WROOM-01C
WROOM · ESP32-C2 · Active
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Figures here are compiled from Espressif's official datasheets, with the source linked on each page. Mistakes are possible, so if something looks off, please report it.
Which should you choose?
These run different SoCs (ESP32-S2 vs ESP32-C2), so they differ in CPU, wireless and peripherals, not just packaging.
Choose ESP32-S2-MINI-2 if you need
- faster CPU (240 MHz, Xtensa LX7)
- PSRAM for camera frames, audio buffers and LVGL/large displays
- native USB-OTG: act as a USB device/host without a USB-UART chip
- more usable GPIO (37 vs 14)
- smaller footprint (15.4×20.5 mm)
Choose ESP8684-WROOM-01C if you need
- Bluetooth LE
Size, to scale
- ESP32-S2-MINI-2: 15.4×20.5 mm
- ESP8684-WROOM-01C: 16×24 mm
Spec differences at a glance
- CPU: ESP32-S2-MINI-2 Xtensa LX7, 1-core · ESP8684-WROOM-01C RISC-V, 1-core
- Max clock: ESP32-S2-MINI-2 240 MHz · ESP8684-WROOM-01C 120 MHz
- SRAM: ESP32-S2-MINI-2 320 KB · ESP8684-WROOM-01C 272 KB
- ROM: ESP32-S2-MINI-2 128 KB · ESP8684-WROOM-01C 576 KB
- Flash options: ESP32-S2-MINI-2 4 MB · ESP8684-WROOM-01C 2 / 4 MB
- PSRAM: ESP32-S2-MINI-2 2 MB (quad) · ESP8684-WROOM-01C None
- Co-processor: ESP32-S2-MINI-2 ULP-RISC-V · ESP8684-WROOM-01C none
- Bluetooth: ESP32-S2-MINI-2 — · ESP8684-WROOM-01C BLE 5.x
- Usable GPIO: ESP32-S2-MINI-2 37 · ESP8684-WROOM-01C 14
- ADC: ESP32-S2-MINI-2 20× 12-bit · ESP8684-WROOM-01C 5× 12-bit
- USB: ESP32-S2-MINI-2 USB-OTG · ESP8684-WROOM-01C USB-Serial(external)
- UART / SPI / I²C / I²S: ESP32-S2-MINI-2 2 / 2 / 2 / 1 · ESP8684-WROOM-01C 2 / 1 / 1 / 0
- TWAI (CAN): ESP32-S2-MINI-2 Yes · ESP8684-WROOM-01C No
- Touch: ESP32-S2-MINI-2 14 · ESP8684-WROOM-01C 0
- Deep sleep: ESP32-S2-MINI-2 — µA · ESP8684-WROOM-01C 5 µA
- Dimensions: ESP32-S2-MINI-2 15.4 × 20.5 × 2.4 mm · ESP8684-WROOM-01C 16 × 24 × 3.1 mm
- Pin count: ESP32-S2-MINI-2 41 · ESP8684-WROOM-01C 23
- Temp range: ESP32-S2-MINI-2 -40 to 85 °C · ESP8684-WROOM-01C -40 to 105 °C
- Crypto: ESP32-S2-MINI-2 AES, SHA, RSA, HMAC, RNG · ESP8684-WROOM-01C ECC, SHA, RNG
- Digital signature: ESP32-S2-MINI-2 Yes · ESP8684-WROOM-01C No
Compute & memory
⚑ flag an error| ESP32-S2-MINI-2 | ESP8684-WROOM-01C | |
|---|---|---|
| CPU≠ | Xtensa LX7, 1-core | RISC-V, 1-core |
| Max clock≠ | 240 MHz | 120 MHz |
| SRAM≠ | 320 KB | 272 KB |
| ROM≠ | 128 KB | 576 KB |
| Flash options≠ | 4 MB | 2 / 4 MB |
| PSRAM≠ | 2 MB (quad) | None |
| Co-processor≠ | ULP-RISC-V | none |
Wireless
⚑ flag an error| ESP32-S2-MINI-2 | ESP8684-WROOM-01C | |
|---|---|---|
| Wi-Fi | Wi-Fi 4 | Wi-Fi 4 |
| Wi-Fi bands | 2.4GHz | 2.4GHz |
| Bluetooth≠ | — | BLE 5.x |
| 802.15.4 (Thread/Zigbee) | No | No |
| Antenna | PCB | PCB |
Peripherals & I/O
⚑ flag an error| ESP32-S2-MINI-2 | ESP8684-WROOM-01C | |
|---|---|---|
| Usable GPIO≠ | 37 | 14 |
| ADC≠ | 20× 12-bit | 5× 12-bit |
| USB≠ | USB-OTG | USB-Serial(external) |
| UART / SPI / I²C / I²S≠ | 2 / 2 / 2 / 1 | 2 / 1 / 1 / 0 |
| TWAI (CAN)≠ | Yes | No |
| SD/MMC | No | No |
| Ethernet MAC | No | No |
| Touch≠ | 14 | 0 |
Power
⚑ flag an error| ESP32-S2-MINI-2 | ESP8684-WROOM-01C | |
|---|---|---|
| Operating voltage | 3.0-3.6 V | 3.0-3.6 V |
| Deep sleep≠ | — µA | 5 µA |
Physical
⚑ flag an error| ESP32-S2-MINI-2 | ESP8684-WROOM-01C | |
|---|---|---|
| Dimensions≠ | 15.4 × 20.5 × 2.4 mm | 16 × 24 × 3.1 mm |
| Pin count≠ | 41 | 23 |
| Temp range≠ | -40 to 85 °C | -40 to 105 °C |
| Mounting | SMD castellated | SMD castellated |
| Lifecycle | Active | Active |
Security
⚑ flag an error| ESP32-S2-MINI-2 | ESP8684-WROOM-01C | |
|---|---|---|
| Secure boot | Yes | Yes |
| Flash encryption | Yes | Yes |
| Crypto≠ | AES, SHA, RSA, HMAC, RNG | ECC, SHA, RNG |
| Digital signature≠ | Yes | No |
| TRNG | Yes | Yes |