Wanted new example using nordic uart nrf52 sending binary data

[bossesand]

I need assistance, I think the CmdMessenger is a great idea, I have used it to send data from a bno055 from a arduino over USB serial, it works great,

Now I am trying to using BLE uart using a Adafruit nrf52 feather and the Arduino IDE 1.8.1

CmdMessenger cmdMessenger = CmdMessenger(bleuart);
...
// Send the result of the IMU read using quarternions
//cmdMessenger.sendCmd(kQuarternionSend,q0,q1,q2,q3);
cmdMessenger.sendCmdStart(kQuarternionSend);
cmdMessenger.sendCmdBinArg(mySensor.quat.q0);
cmdMessenger.sendCmdBinArg(mySensor.quat.q1);
cmdMessenger.sendCmdBinArg(mySensor.quat.q2);
cmdMessenger.sendCmdBinArg(mySensor.quat.q3);
cmdMessenger.sendCmdEnd();
}

My problem is that when I use the string version cmdMessenger.sendCmdArg(mySensor.quat.q2);
the terminal shows each character on a new line !
So I am thinking something is wrong on a basic level, when sending a normal
bleuart.println("String to be Printed");
It comes out in one line on the receiver on arduino ble uart app.

I want to change to binary format for the quaternion data so that the message can be sent in one BLE notification / message.
This should be most efficient!

Can anyone assist?

Bo-Erik