https://riscv.org/blog/bluetrum-launches-rt-thread-based-arduino-uno-like-risc-v-development-board-the-ab32vg1-gareth-halfacree-hackster-io/
Bluetrum Launches RT-Thread-Based Arduino Uno-Like RISC-V Development Board, the AB32VG1 | Gareth...
Jun 24, 2021 - RISC-V Community News
https://www.hackster.io/news/bluetrum-launches-rt-thread-based-arduino-uno-like-risc-v-development-board-the-ab32vg1-8d532d3612d7
Bluetrum Launches RT-Thread-Based Arduino Uno-Like RISC-V Development Board, the AB32VG1 -...
Sub-$13 system comes with RT-Thread Studio IDE support, audio capabilities, and even an infrared receiver.