I need a Bluetooth connection between my arduino pro mini and my smartphone. I want to use Bluetooth Low Energy and the HM-11.
The problem is that I don't understand the datasheet and the sleep mode.
Assuming my HM 11 is sleeping and that the user wants to pull data from arduino. How to wake up the HM-11 ? It is said that the user has to send a long string (+80 characters)
What about if the connection was lost while asleep ? For example smartphone's Bluetooth turned off by the user, and then turned ON (and sending +80 characters) to pull data. Will it wake up the HM-11 ?
Hope you'll understand me.