ESP32-C3 RISC-V 32bit single-core processor

On a coin-size board of 25*20.5 mm,The Beetle ESP32-C3 is up to 13 IO ports broken out, so you don't have to worry about running out of IO ports when making projects. Moreover, its mini size effortlessly integrates into a miniature devices and offering both powerful functions and connectivity.

For instance smart wearables, the Beetle ESP32-C3 microcontroller's mini size make it an ideal choice for intelligent wearables like smartwatches and smart glasses. It can connect with smartphones, enabling health monitoring, and delivering message notifications, it accomplishes all this without sacrificing the device's form factor or increasing its weight.

https://wiki.dfrobot.com/SKU_DFR0868_Beetle_ESP32_C3