ESP32C3

ESP32-C3 is a system-on-chip from Espressif that marks the first RISC-V based member of the ESP32 family. It is designed for low-power, wireless IoT applications and integrates both Wi-Fi and Bluetooth Low Energy connectivity with security features suitable for edge devices.

Its CPU is a single-core 32-bit RISC-V RV32IMC core operating up to 160 MHz. The SoC includes a hardware cryptography engine supporting standard algorithms, secure boot, and flash encryption to protect firmware and data. Wireless capabilities include 2.4 GHz Wi-Fi (802.11 b/g/n) and BLE, enabling common IoT networking scenarios.

Memory and peripherals: ESP32-C3 relies on external flash for program storage and uses on-chip RAM for runtime data. It provides a range of I/O interfaces, including UART, SPI, I2C, I2S, PWM, and ADC peripherals, along with timer and RTC blocks to support low-power operation. The device supports multiple power modes for battery-powered use.

Development and applications: The ESP32-C3 is supported by Espressif's ESP-IDF development framework, as well as Arduino, MicroPython, and other toolchains. It is used in various IoT devices, from sensors and home automation controllers to wearable devices and small embedded systems requiring Wi-Fi and BLE with robust security.