The ESP32-C3 from Espressif Systems is a single-core Wi-Fi and Bluetooth 5 (LE) microcontroller SoC based on the open-source RISC-V architecture. It strikes an ideal balance of power, I/O capabilities and security, thus offering an optimal cost-effective solution for connected devices. The availability of Wi-Fi and Bluetooth 5 (LE) connectivity not only makes the device’s configuration easy, but it also facilitates a variety of use-cases based on dual connectivity.
The chip integrates a 32-bit RISC-V microcontroller core with a maximum clock speed of 160 MHz. With 22 configurable GPIOs, 400 KB of internal RAM and low-power-mode support, it can facilitate many different use-cases involving connected devices. The MCU comes in multiple variants with integrated and external Flash availability. Its high-temperature support makes it ideal for industrial and lighting use-cases.
The availability of features such as RSA-3072-based secure boot and AES-128-XTS-based Flash encryption can be used to build securely connected devices. The innovative digital signature peripheral and the HMAC peripheral provide a secure device identity for applications. Hardware acceleration support for cryptographic algorithms ensures good performance for secure communication both in a local network and with the cloud.
The ESP32-C3 is supported through Espressif’s open-source ESP-IDF that already powers millions of devices in the field. This ensures the availability of a robust SDK and tools, as well as an easy application migration path for developers. It can also be used with an external host MCU, using ESP-AT and ESP-hosted solutions.
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