⚖ Comparativa : ESP32 (original, clase ESP32-WROOM-32) vs ESP32-C3
Comparación de las características técnicas declaradas : ESP32 (original, clase ESP32-WROOM-32) et ESP32-C3 (10 características). Ver la ficha completa : ESP32 (original, clase ESP32-WROOM-32) · ESP32-C3.
| Características | ESP32 (original, clase ESP32-WROOM-32) | ESP32-C3 |
|---|---|---|
cpu | dual-core Tensilica Xtensa LX6 @ up to 240 MHz (80/160/240 MHz selectable), plus a ULP协processor on the RTC domain; 520 KB SRAM + 16 KB RTC SRAM, 448 KB ROM ( | single-core 32-bit RISC-V RV32IMC @ up to 160 MHz, plus a 20 MHz ultra-low-power RISC-V coprocessor ("power management" core) ( datasheet |
gpu | none. | — |
storage | external SPI flash, typically 4 MB (WROOM-32), up to 16 MB; WROVER adds 4–8 MB PSRAM ( | external or in-package SPI flash, 4 MB typical on MINI-1 (up to 16 MB supported) ( |
connectivity | Wi-Fi 802.11 b/g/n 2.4 GHz (150 Mbps HT40) + Bluetooth Classic + BLE 4.2; Ethernet (external PHY), CAN 2.0, SDIO, 10/100 MAC ( ESP-IDF docs | Wi-Fi 802.11 b/g/n 2.4 GHz + Bluetooth 5 (LE) with long-range (Coded PHY), BLE Mesh, ESP-WIFI-MESH; no Bluetooth Classic ( |
gpio | 34 usable GPIOs (GPIO34–39 input-only, no pull-ups; GPIO6–11 strapping/flash on older modules — treat as unavailable). Peripherals: 3× SPI, 3× UART, 2× I2C, 1× I2S, SDMMC, 16× LEDC PWM channels (8-bit duty, up to 40 MHz), RMT (8 TX/8 RX), 2× 8-bit DAC (GPIO25/26), touch sensing (10 pads), hall sensor, 12-bit ADC (18 external channels across ADC1/ADC2; ADC2 is unusable while Wi-Fi runs) (ESP32 datasheet ESP-IDF API docs | 22 programmable GPIOs (GPIO0–GPIO21); 2× UART, 1× I2C, 1× SPI, 2× I2S, 1× RMT TX/RX pair, LEDC PWM (6 channels), 1× TWAI (CAN), GPIO matrix routing (datasheet URL above). - ADC: 12-bit SAR with a handful of channels on GPIO0–GPIO5 (exact mapping package-dependent). > |
logic_level | 3.3 v | 3.3 v |
power | ultra-low-power modes (modem-sleep, light-sleep, deep-sleep ~10 µA class with RTC timer wake, ULP-sleep) per Espressif's power-management docs ( Wi-Fi TX draws ~ hundreds of mA peaks — design the 3.3 V rail for ≥ 500 mA. | multiple low-power modes with ULP FSM; deep sleep in the single-digit µA class (datasheet power tables). > |
temperature | –40 °C to +125 °C (industrial grade, per Espressif product page: | high-temperature support marketed for industrial/lighting ( exact grade per chip marking — datasheet §General Characteristics. |
memory | — | 400 KB internal SRAM, 384 KB ROM, 24 KB in low-power SRAM ( datasheet URL above). |
usb | — | USB-Serial/JTAG device peripheral (CDC console + flashing + JTAG debug on GPIO18/19) — it is not USB-OTG; you cannot build USB HID devices with it (datasheet URL above). |