This log is for version 2 of the Glovraille project. The instructions of how to build the prototype can be found in the project page. Here is some issues that encountered while building the prototype version 2. 

some issues

When I was testing the code, I noticed that the glovraille always tries to send the 'ENTER' character, that means that the pin number 13 is been activated even if is not selected. The problem was caused by the built-in LED. At the setup function of the Arduino code, I set all the GPIO pins as OUTPUT with pullups, which made the pin number 13 alway ON, therefore the built-in LED is turned ON. And When the LED is ON, I suspect that this leads to a voltage drop in the pin 13, therefore a value of LOW as if this is selected by the selector (the GND selector in the thumb).
The solution to this problem is just to remove the built-in LED. I was willing to remove it anyway in order to save some power when adding bluetooth and powering the system from a battery.