ESP32-C61-MINI-1 vs ESP8684-WROOM-01C
ESP32-C61-MINI-1
MINI · ESP32-C61 · New
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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-C61 vs ESP32-C2), so they differ in CPU, wireless and peripherals, not just packaging.
Choose ESP32-C61-MINI-1 if you need
- Wi-Fi 6: better battery life and throughput in busy networks
- higher clock (160 MHz)
- PSRAM for camera frames, audio buffers and LVGL/large displays
- larger flash option (up to 8 MB) for bigger firmware and OTA
- more usable GPIO (23 vs 14)
Choose ESP8684-WROOM-01C if you need
no standout advantage over ESP32-C61-MINI-1; it trades on the points opposite.
Size, to scale
- ESP32-C61-MINI-1: 13.2×16.6 mm
- ESP8684-WROOM-01C: 16×24 mm
Spec differences at a glance
- Max clock: ESP32-C61-MINI-1 160 MHz · ESP8684-WROOM-01C 120 MHz
- SRAM: ESP32-C61-MINI-1 320 KB · ESP8684-WROOM-01C 272 KB
- ROM: ESP32-C61-MINI-1 256 KB · ESP8684-WROOM-01C 576 KB
- Flash options: ESP32-C61-MINI-1 4 / 8 MB · ESP8684-WROOM-01C 2 / 4 MB
- PSRAM: ESP32-C61-MINI-1 8 MB (quad) · ESP8684-WROOM-01C None
- Wi-Fi: ESP32-C61-MINI-1 Wi-Fi 6 · ESP8684-WROOM-01C Wi-Fi 4
- Usable GPIO: ESP32-C61-MINI-1 23 · ESP8684-WROOM-01C 14
- ADC: ESP32-C61-MINI-1 4× 12-bit · ESP8684-WROOM-01C 5× 12-bit
- USB: ESP32-C61-MINI-1 USB-Serial-JTAG · ESP8684-WROOM-01C USB-Serial(external)
- UART / SPI / I²C / I²S: ESP32-C61-MINI-1 3 / 1 / 1 / 1 · ESP8684-WROOM-01C 2 / 1 / 1 / 0
- SD/MMC: ESP32-C61-MINI-1 Yes · ESP8684-WROOM-01C No
- Deep sleep: ESP32-C61-MINI-1 10 µA · ESP8684-WROOM-01C 5 µA
- Dimensions: ESP32-C61-MINI-1 13.2 × 16.6 × 2.4 mm · ESP8684-WROOM-01C 16 × 24 × 3.1 mm
- Pin count: ESP32-C61-MINI-1 53 · ESP8684-WROOM-01C 23
- Temp range: ESP32-C61-MINI-1 -40 to 85 °C · ESP8684-WROOM-01C -40 to 105 °C
- Lifecycle: ESP32-C61-MINI-1 New · ESP8684-WROOM-01C Active
- Crypto: ESP32-C61-MINI-1 AES, SHA, ECC, ECDSA, RNG · ESP8684-WROOM-01C ECC, SHA, RNG
- Digital signature: ESP32-C61-MINI-1 Yes · ESP8684-WROOM-01C No
Compute & memory
⚑ flag an error| ESP32-C61-MINI-1 | ESP8684-WROOM-01C | |
|---|---|---|
| CPU | RISC-V, 1-core | RISC-V, 1-core |
| Max clock≠ | 160 MHz | 120 MHz |
| SRAM≠ | 320 KB | 272 KB |
| ROM≠ | 256 KB | 576 KB |
| Flash options≠ | 4 / 8 MB | 2 / 4 MB |
| PSRAM≠ | 8 MB (quad) | None |
| Co-processor | none | none |
Wireless
⚑ flag an error| ESP32-C61-MINI-1 | ESP8684-WROOM-01C | |
|---|---|---|
| Wi-Fi≠ | Wi-Fi 6 | Wi-Fi 4 |
| Wi-Fi bands | 2.4GHz | 2.4GHz |
| Bluetooth | BLE 5.x | BLE 5.x |
| 802.15.4 (Thread/Zigbee) | No | No |
| Antenna | PCB | PCB |
Peripherals & I/O
⚑ flag an error| ESP32-C61-MINI-1 | ESP8684-WROOM-01C | |
|---|---|---|
| Usable GPIO≠ | 23 | 14 |
| ADC≠ | 4× 12-bit | 5× 12-bit |
| USB≠ | USB-Serial-JTAG | USB-Serial(external) |
| UART / SPI / I²C / I²S≠ | 3 / 1 / 1 / 1 | 2 / 1 / 1 / 0 |
| TWAI (CAN) | No | No |
| SD/MMC≠ | Yes | No |
| Ethernet MAC | No | No |
| Touch | 0 | 0 |
Power
⚑ flag an error| ESP32-C61-MINI-1 | ESP8684-WROOM-01C | |
|---|---|---|
| Operating voltage | 3.0-3.6 V | 3.0-3.6 V |
| Deep sleep≠ | 10 µA | 5 µA |
Physical
⚑ flag an error| ESP32-C61-MINI-1 | ESP8684-WROOM-01C | |
|---|---|---|
| Dimensions≠ | 13.2 × 16.6 × 2.4 mm | 16 × 24 × 3.1 mm |
| Pin count≠ | 53 | 23 |
| Temp range≠ | -40 to 85 °C | -40 to 105 °C |
| Mounting | SMD castellated | SMD castellated |
| Lifecycle≠ | New | Active |
Security
⚑ flag an error| ESP32-C61-MINI-1 | ESP8684-WROOM-01C | |
|---|---|---|
| Secure boot | Yes | Yes |
| Flash encryption | Yes | Yes |
| Crypto≠ | AES, SHA, ECC, ECDSA, RNG | ECC, SHA, RNG |
| Digital signature≠ | Yes | No |
| TRNG | Yes | Yes |