OpenW800 SDK for W800 (W800-C400, WinnerMicro WiFi & Bluetooth), W801 Links https://aur.archlinux.org/packages/csky-elfabiv2-tools-bin https://occ-oss-prod.oss-cn-hangzhou.aliyuncs.com/resource/1356021/1619529111421/csky-elfabiv2-tools-x86_64-minilibc-20210423.tar.gz