Espressif Systems introduced their first RISC-V wireless SoC last year with ESP32-C3 single-core 32-bit RISC-V SoC offering both 2.4GHz WiFi 4 and Bluetooth 5.0 LE connectivity, and while the company sent some engineering samples of ESP32-C3 boards months ago, general availability of ESP32-C3-DevKitM-1 and modules is expected shortly.