Ok this is a bit of a mystery to me
I bought a bluetooth dip module and had it connecting and working fine in serial uart mode under both windows and linux with the usb dongle sold here but now for absolutely no reason it has stopped being able to be detected. I’ve changed nothing in my hardware setup (its connected to 3.3v AVR ATMega16 uart tx/tx @38400bps). PIO4 is tied to ground as the datasheet suggests and I’ve placed it in fast data mode.
Has anyone had this problem with the module? Is their somthing simple I am missing?