Project Busylight Part 2 - Nodejs Code

The adventure continues. This fun little project now has some Javascript running on nodejs and seems to function pretty flawlessly.

I now have four different presence states based on feedback from the Room Kit:

1. Flashing Red - Do not disturb
2. Red - On a Call
3. Blue - Room occupied based on people count
4. Green - available and empty

The expansion of different presence states was pretty easy. I incorporated people count, do not disturb and the call API's. Do not disturb is a little hard to find on a Cisco Touch 10 so my advice is if you want users to actually use DnD or know its available build a custom UI widget for it. This can be used to toggle DnD via a Macro.

The project was a little larger than expected so I created a github repository to get access to code if your interested.

https://github.com/voipnorm/CEbusyLightOmega

The design is pretty simple. The bl and endpoint files create class's for what you would think they are. The most interesting part of this project was creating a way to prioritise each presence state. What I created is based on the array index of a 4 element array [0,0,0,1]. Each presence state matches the following positions in the array:

• Flashing Red (DnD) - 0
• Red (in call) - 1
• Blue (people present) - 2
• Green (room is vacant) - 3

As the presence state changes so does the array. [1,0,1,1] means the room has been set to do not disturb and there are people in the room. The busylight shows a flashing red because it has the highest priority. The final element is alway left at 1 because it has the lowest priority default and it's not worth the effort to change. The "let indexColor = colorArray.indexOf(1);" looks up the first element in the array that has been set to 1 dictating what color to set the light.

Next step lets get it running on a Raspberry PI.

VoIPNorm