I may give MIT’s app inventor a try. I have looked at a lot of codeless app builders online and I’m not so sure any of them are able to do what I need. MIT’s offering + BLE extension looked to be a bit finer grained, control wise.
I was assuming that the battery number is the number used for the device name being returned by the ble scan. I will pass your questions on to the manufacturer. Hopefully they will have clearer answers for more specific questions. Just knowing what to ask is a big help.
no that would not be possible. The first row in the chart/table you provided expecting the battery number as a single digit (could be decimal or hexadecimal, not sure)
It says you need to form an inquiry string that starts with
The hexadecimal “3A”
Followed by a single digit battery number
Followed by a single digit/char instruction
Followed by data bytes which is not clear
Followed by the data to be sent
Followed by a digit SUM in 2 bytes
Followed by a carriage return “0D” + linefeed “0A”
If we can get clarification on these then we can of course build the required string to construct the inquiry.