I use the Serial Chat Service as example for create an custom application. I want to use this example as base for a application to exchange data between the SAMB11 and a smartphone like a old fashioned Serial port.
I understand in the meanwhile how things are working in the SAMB11. I use the Atmel Smart Connect App on a Samsung Galaxy to test the SCS app. Everything is working well.
But when I use an app like BLE Scanner to investigate how BLE works, I see for the SCS example a Custom Service with a Custom Characteristic with a NOTIFY property. When I type a word at the console (UART) the text appears at the VALUE field of the characteristic, so this is working. But I don't see a WRITE Propery to type a word at the Samsung. Can someone explain how it is possible to send data from the smartphone to the SAMB11 without using the Atmel Smart Connect app?