ESP32-MINI-1 vs ESP32-S2-WROVER
ESP32-MINI-1
MINI · ESP32 · Active
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ESP32-S2-WROVER
WROVER · ESP32-S2 · 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-S2), so they differ in CPU, wireless and peripherals — not just packaging.
Choose ESP32-MINI-1 if you need
- Bluetooth LE
- 2 CPU cores vs 1 — more headroom for RTOS / parallel work
- Ethernet MAC for wired networking (add an external PHY)
- smaller footprint (13.2×19 mm)
Choose ESP32-S2-WROVER if you need
- PSRAM for camera frames, audio buffers and LVGL/large displays
- larger flash option (up to 16 MB) for bigger firmware and OTA
- native USB-OTG — act as a USB device/host without a USB-UART chip
- more usable GPIO (37 vs 28)
Size, to scale
- ESP32-MINI-1 — 13.2×19 mm
- ESP32-S2-WROVER — 18×31 mm
Spec differences at a glance
- CPU: ESP32-MINI-1 Xtensa LX6, 2-core · ESP32-S2-WROVER Xtensa LX7, 1-core
- SRAM: ESP32-MINI-1 520 KB · ESP32-S2-WROVER 320 KB
- ROM: ESP32-MINI-1 448 KB · ESP32-S2-WROVER 128 KB
- Flash options: ESP32-MINI-1 4 MB · ESP32-S2-WROVER 4 / 8 / 16 MB
- PSRAM: ESP32-MINI-1 None · ESP32-S2-WROVER 2 MB (quad)
- Co-processor: ESP32-MINI-1 ULP-FSM · ESP32-S2-WROVER ULP-RISC-V
- Bluetooth: ESP32-MINI-1 BT Classic + BLE · ESP32-S2-WROVER —
- Usable GPIO: ESP32-MINI-1 28 · ESP32-S2-WROVER 37
- ADC: ESP32-MINI-1 18× 12-bit · ESP32-S2-WROVER 20× 12-bit
- USB: ESP32-MINI-1 USB-Serial(external) · ESP32-S2-WROVER USB-OTG
- UART / SPI / I²C / I²S: ESP32-MINI-1 3 / 2 / 2 / 2 · ESP32-S2-WROVER 2 / 2 / 2 / 1
- SD/MMC: ESP32-MINI-1 Yes · ESP32-S2-WROVER No
- Ethernet MAC: ESP32-MINI-1 Yes · ESP32-S2-WROVER No
- Touch: ESP32-MINI-1 10 · ESP32-S2-WROVER 14
- Deep sleep: ESP32-MINI-1 10 µA · ESP32-S2-WROVER — µA
- Dimensions: ESP32-MINI-1 13.2 × 19 × 2.4 mm · ESP32-S2-WROVER 18 × 31 × 3.3 mm
- Pin count: ESP32-MINI-1 34 · ESP32-S2-WROVER 42
- Crypto: ESP32-MINI-1 AES, SHA, RSA, RNG · ESP32-S2-WROVER AES, SHA, RSA, HMAC, RNG
- Digital signature: ESP32-MINI-1 No · ESP32-S2-WROVER Yes
Compute & memory
⚑ flag an error| ESP32-MINI-1 | ESP32-S2-WROVER | |
|---|---|---|
| CPU≠ | Xtensa LX6, 2-core | Xtensa LX7, 1-core |
| Max clock | 240 MHz | 240 MHz |
| SRAM≠ | 520 KB | 320 KB |
| ROM≠ | 448 KB | 128 KB |
| Flash options≠ | 4 MB | 4 / 8 / 16 MB |
| PSRAM≠ | None | 2 MB (quad) |
| Co-processor≠ | ULP-FSM | ULP-RISC-V |
Wireless
⚑ flag an error| ESP32-MINI-1 | ESP32-S2-WROVER | |
|---|---|---|
| Wi-Fi | Wi-Fi 4 | Wi-Fi 4 |
| Wi-Fi bands | 2.4GHz | 2.4GHz |
| Bluetooth≠ | BT Classic + BLE | — |
| 802.15.4 (Thread/Zigbee) | No | No |
| Antenna | PCB | PCB |
Peripherals & I/O
⚑ flag an error| ESP32-MINI-1 | ESP32-S2-WROVER | |
|---|---|---|
| Usable GPIO≠ | 28 | 37 |
| ADC≠ | 18× 12-bit | 20× 12-bit |
| USB≠ | USB-Serial(external) | USB-OTG |
| UART / SPI / I²C / I²S≠ | 3 / 2 / 2 / 2 | 2 / 2 / 2 / 1 |
| TWAI (CAN) | Yes | Yes |
| SD/MMC≠ | Yes | No |
| Ethernet MAC≠ | Yes | No |
| Touch≠ | 10 | 14 |
Power
⚑ flag an error| ESP32-MINI-1 | ESP32-S2-WROVER | |
|---|---|---|
| Operating voltage | 3.0-3.6 V | 3.0-3.6 V |
| Deep sleep≠ | 10 µA | — µA |
Physical
⚑ flag an error| ESP32-MINI-1 | ESP32-S2-WROVER | |
|---|---|---|
| Dimensions≠ | 13.2 × 19 × 2.4 mm | 18 × 31 × 3.3 mm |
| Pin count≠ | 34 | 42 |
| Temp range | -40 to 85 °C | -40 to 85 °C |
| Mounting | SMD castellated | SMD castellated |
| Lifecycle | Active | Active |
Security
⚑ flag an error| ESP32-MINI-1 | ESP32-S2-WROVER | |
|---|---|---|
| Secure boot | Yes | Yes |
| Flash encryption | Yes | Yes |
| Crypto≠ | AES, SHA, RSA, RNG | AES, SHA, RSA, HMAC, RNG |
| Digital signature≠ | No | Yes |
| TRNG | Yes | Yes |