Lonely Binary ESP32-C3 Super Mini is a compact development board featuring the ESP32-C3 MCU, a single-core microcontroller with integrated Wi-Fi and Bluetooth 5 (LE), built on the open-source RISC-V architecture. It offers an excellent balance of processing power, I/O capabilities, and security, making it a cost-effective solution for connected devices. The dual connectivity options of Wi-Fi and Bluetooth 5 (LE) provide ease of configuration while supporting a wide range of use cases that require versatile wireless communication.

ESP32-C3 integrates a 32-bit core RISC-V microcontroller 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. The high-temperature support makes it ideal for industrial and lighting use-cases.

Wi-Fi and Bluetooth 5 (LE) with long-range (LR) support help building devices with great coverage and improved usability. ESP32-C3 continues to support Bluetooth LE SIG Mesh and Espressif Wi-Fi Mesh. Furthermore, the solid RF performance of ESP32-C3 is sustained at a higher operating temperature.

The blue LED to the right of the ESP32-C3 chip is connected to I/O pin 8.

The boot push button is connected between ground and I/O pin 9.