Hi, I have 2 HC-05 v3.0 bluetooth modules I want to link. All the tutorials online were for v2.0 modules, and they don't work for v3.0. I always seem to get stuck on AT+STATE? returning INITIALIZED. It should be PAIRABLE or something for it to bind. Can anyone help?
link to where you got those ? datasheet ?
Probably because v2 are kosher and v3 is suss. Your interrogation might have also told you it is a 2017 version. I understand some AT commands do work on "v3" modules but not all, and I suspect those that do are inconsistent.
I don't suppose you have a data sheet......
Yeah, I couldn't find any datasheets. The modules blink quickly twice every 2 seconds out of sync. I'm not sure if that means they're connected or not.
I believe those versions that flash will flash in synch when connected. Check the Martyn Currey website.
I believe all the various suss HC-05s work to a degree.