MDBT42Q,2v04 run a scan every second and save wanted resault

1. what do you mean by "software I2C"?
   isn't the code should be 'backup" by electronic?
   
   

and what do you mean by this ?

It's still an idea for SD cards though (at least on CS)

1. I will check and run my test about the 40k ,
   
   

Thanks ,