Hi guys, Welcome to the Advanced Video Search Engine, and you are watching Waveshare USB TO RS232/485/TTL Interface Converter, Industrial Isolation, Adopt original FT232RL. That video is uploaded by Waveshare Electronics at 2021-02-24T03:22:47-08:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [ll_asRm73Fo]