Schema

[jf-eng]

Board to Client

Data Format

Data is transferred in the JSON string format

...
{'axes': [-23, -14, 249], 'buttons': 3, 'switches': 1023}
{'axes': [-23, -14, 249], 'buttons': 3, 'switches': 1023}
{'axes': [-23, -14, 249], 'buttons': 3, 'switches': 1023}
...

Data format:

• 'axes[0]' is x-tilt, 'axes[1]' is y-tilt, 'axes[2]' is z-tilt (Range -255 to 255)

• 'buttons'
  3: Both not pressed
  2: KEY0 (top button) pressed
  1: KEY1 (bottom button) pressed
  0: both pressed

• 'switches'
  10 bit number. Each bit set to '1' which indicates switch flipped on and '0' to indicate switch off.

Client to Server

Topic names

1. node/0/data/direction
2. node/0/data/buttons
3. node/0/data/switches

Data sent for each topic
node/0/data/direction - a list containing 2 bit elements. 4 directions encoded in 2 bits (00-up, 01-down, 10-left, 11-right)
node/0/data/buttons - follow encoding above
node/0/data/switches - 10 bit number. Each bit set to '1' which indicates switch flipped on and '0' to indicate switch off.

Server to Client

For NuttyMode, upon pressing the top button, the client will publish 1 to all other topics except itself.
Topic names

1. node/1/data/nuttymode
2. node/2/data/nuttymode
3. node/3/data/nuttymode
4. node/4/data/nuttymode
5. node/5/data/nuttymode