Hii back again with mysterious things;
I have for a while (dormant part project)
had 2 modules lying around. I know I successfully tested an ran these while back. One is attached to a m8 on uart on a pcb. Sendig some hello and retuning anything recieved. The other on a uart usb on the pc running putty for com.
For uart part it works ok, sent texts seen on putty terminal, and obidiently returns text sent to it(ie pbc m8, thats from pc connected hc to hc attached ocb m8, comes back to pc hc and to putty).
BUT it doesnt respond anything to at commands. When the pin on module for invoking AT is set low, the uart stops (which should be) but I cant provoke it to respnd to anything enterd.
Tried; AT,+AT,#AT, at,+at,...
I also shifted the two modules, if there was some issue with one...
Where am I going wrong.. Any ideas