ESP32-C3 Features

ESP32-C3 is a single-core Wi-Fi and Bluetooth 5 (LE) microcontroller SoC, based on the open-source RISC-V architecture. It strikes the right balance of power, I/O capabilities and security, thus offering the optimal cost-effective solution for connected devices. The availability of Wi-Fi and Bluetooth 5 (LE) connectivity not only makes the device configuration easy, but it also facilitates a variety of use-cases based on dual connectivity.

The features include the following:

32-bit core RISC-V microcontroller with a maximum clock speed of 160 MHz
802.11b/g/n/
A Bluetooth LE subsystem that supports features of Bluetooth 5 and Bluetooth Mesh
384 KB ROM
400 KB SRAM (16 KB for cache)
8 KB SRAM in RTC
22 x programmable GPIOs
Various peripherals:
- Full-speed USB Serial/JTAG controller
- TWAI® compatible with CAN bus 2.0
- General DMA controller (GDMA)
- 2x 12-bit SAR ADC with up to 6 channels
- 3x SPI
- 2x UART
- 1x I2S
- 1x I2C
- 2 x 54-bit general-purpose timers
- 3 x watchdog timers
- 1 x 52-bit system timer
- Remote Control Peripheral (RMT)
- LED PWM controller (LEDC) with up to 6 channels
- Temperature sensor
Cryptographic hardware acceleration (RNG, ECC, RSA, SHA-2, AES)

For more information, check the ESP32-C3 Datasheet_ or the ESP32-C3 Technical Reference Manual_.

.. _ESP32-C3 Datasheet: https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_en.pdf .. _ESP32-C3 Technical Reference Manual: https://espressif.com/sites/default/files/documentation/esp32-c3_technical_reference_manual_en.pdf