title: What android API to call in order to write "command" to CCCD handle in BLE?
body: <p>Purpose: Write "commands"(quoted because I haven't figure out the right command, I was told it's 0x0001, 0x0010, 0x01, 0x02, etc ) to CCCD handle on the BLE stack to enable notification/indication (from MCU to Android device)</p>
  
  <p>Problem: Don't know the right API, don't know if there is an API, tried setCharacteristic(), did not work, at all.</p>
  
  <p>What I have: I can discover the right char., I can send data from phone, I can bond (taken care not by me, but by the stack anyway) but I cannot send data FROM MCU to Android.</p>
  
  <p>Help, please?</p>