Hi Bruce,
After completed soldering of the BT modules onto PCBs I noticed that GND connectivity is there only if the battery is present. Do you have the same observation?
On a side note, I have found PIN numbers of the wireless modules different to pinout in the module documentation. It looks like pin numbers you provide don't follow datasheet I found here: https://elty.pl/public/assets/3/Core51822-B-pin.jpg (This is not exactly the module I used, but the pinout is the same).
Hi Bruce,
After completed soldering of the BT modules onto PCBs I noticed that GND connectivity is there only if the battery is present. Do you have the same observation?
On a side note, I have found PIN numbers of the wireless modules different to pinout in the module documentation. It looks like pin numbers you provide don't follow datasheet I found here:
https://elty.pl/public/assets/3/Core51822-B-pin.jpg(This is not exactly the module I used, but the pinout is the same).