the series is good , i have wb2-01m but kept is a scrab box because i am not understanding how to write code and upload code for bare chip , no reference videos or data at online, i have experience with arduino for 10+ years & esp with 5 years, but this is not compatible with arduino ide so i don't know whats other way how i can get support librarys for it and all ,bought with excitement but not useful without easy development environments, hope ai thinker working on software side to program their chips easy soon , waiting for it