ESP32-C3-MINI-1 vs ESP32-MINI-1
ESP32-C3-MINI-1
MINI · ESP32-C3 · Active
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ESP32-MINI-1
MINI · 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-C3 vs ESP32), so they differ in CPU, wireless and peripherals — not just packaging.
Choose ESP32-C3-MINI-1 if you need
- smaller footprint (13.2×16.6 mm)
Choose ESP32-MINI-1 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)
- Ethernet MAC for wired networking (add an external PHY)
- more usable GPIO (28 vs 15)
Size, to scale
- ESP32-C3-MINI-1 — 13.2×16.6 mm
- ESP32-MINI-1 — 13.2×19 mm
Spec differences at a glance
- CPU: ESP32-C3-MINI-1 RISC-V, 1-core · ESP32-MINI-1 Xtensa LX6, 2-core
- Max clock: ESP32-C3-MINI-1 160 MHz · ESP32-MINI-1 240 MHz
- SRAM: ESP32-C3-MINI-1 400 KB · ESP32-MINI-1 520 KB
- ROM: ESP32-C3-MINI-1 384 KB · ESP32-MINI-1 448 KB
- Co-processor: ESP32-C3-MINI-1 none · ESP32-MINI-1 ULP-FSM
- Bluetooth: ESP32-C3-MINI-1 BLE 5.x · ESP32-MINI-1 BT Classic + BLE
- Usable GPIO: ESP32-C3-MINI-1 15 · ESP32-MINI-1 28
- ADC: ESP32-C3-MINI-1 6× 12-bit · ESP32-MINI-1 18× 12-bit
- USB: ESP32-C3-MINI-1 USB-Serial-JTAG · ESP32-MINI-1 USB-Serial(external)
- UART / SPI / I²C / I²S: ESP32-C3-MINI-1 2 / 1 / 1 / 1 · ESP32-MINI-1 3 / 2 / 2 / 2
- SD/MMC: ESP32-C3-MINI-1 No · ESP32-MINI-1 Yes
- Ethernet MAC: ESP32-C3-MINI-1 No · ESP32-MINI-1 Yes
- Touch: ESP32-C3-MINI-1 0 · ESP32-MINI-1 10
- Deep sleep: ESP32-C3-MINI-1 5 µA · ESP32-MINI-1 10 µA
- Dimensions: ESP32-C3-MINI-1 13.2 × 16.6 × 2.4 mm · ESP32-MINI-1 13.2 × 19 × 2.4 mm
- Pin count: ESP32-C3-MINI-1 53 · ESP32-MINI-1 34
- Crypto: ESP32-C3-MINI-1 AES, SHA, RSA, HMAC, RNG · ESP32-MINI-1 AES, SHA, RSA, RNG
- Digital signature: ESP32-C3-MINI-1 Yes · ESP32-MINI-1 No
Compute & memory
⚑ flag an error| ESP32-C3-MINI-1 | ESP32-MINI-1 | |
|---|---|---|
| CPU≠ | RISC-V, 1-core | Xtensa LX6, 2-core |
| Max clock≠ | 160 MHz | 240 MHz |
| SRAM≠ | 400 KB | 520 KB |
| ROM≠ | 384 KB | 448 KB |
| Flash options | 4 MB | 4 MB |
| PSRAM | None | None |
| Co-processor≠ | none | ULP-FSM |
Wireless
⚑ flag an error| ESP32-C3-MINI-1 | ESP32-MINI-1 | |
|---|---|---|
| Wi-Fi | Wi-Fi 4 | Wi-Fi 4 |
| Wi-Fi bands | 2.4GHz | 2.4GHz |
| Bluetooth≠ | BLE 5.x | BT Classic + BLE |
| 802.15.4 (Thread/Zigbee) | No | No |
| Antenna | PCB | PCB |
Peripherals & I/O
⚑ flag an error| ESP32-C3-MINI-1 | ESP32-MINI-1 | |
|---|---|---|
| Usable GPIO≠ | 15 | 28 |
| ADC≠ | 6× 12-bit | 18× 12-bit |
| USB≠ | USB-Serial-JTAG | USB-Serial(external) |
| UART / SPI / I²C / I²S≠ | 2 / 1 / 1 / 1 | 3 / 2 / 2 / 2 |
| TWAI (CAN) | Yes | Yes |
| SD/MMC≠ | No | Yes |
| Ethernet MAC≠ | No | Yes |
| Touch≠ | 0 | 10 |
Power
⚑ flag an error| ESP32-C3-MINI-1 | ESP32-MINI-1 | |
|---|---|---|
| Operating voltage | 3.0-3.6 V | 3.0-3.6 V |
| Deep sleep≠ | 5 µA | 10 µA |
Physical
⚑ flag an error| ESP32-C3-MINI-1 | ESP32-MINI-1 | |
|---|---|---|
| Dimensions≠ | 13.2 × 16.6 × 2.4 mm | 13.2 × 19 × 2.4 mm |
| Pin count≠ | 53 | 34 |
| Temp range | -40 to 85 °C | -40 to 85 °C |
| Mounting | SMD castellated | SMD castellated |
| Lifecycle | Active | Active |
Security
⚑ flag an error| ESP32-C3-MINI-1 | ESP32-MINI-1 | |
|---|---|---|
| Secure boot | Yes | Yes |
| Flash encryption | Yes | Yes |
| Crypto≠ | AES, SHA, RSA, HMAC, RNG | AES, SHA, RSA, RNG |
| Digital signature≠ | Yes | No |
| TRNG | Yes | Yes |