channels:
L : .e(init:1) 1x1of2 watch
M : .e(init:1) 1x1of2 watch
R : .e(init:1) 1x1of2 watch
channel value order should be strict repeat because 
there is only one hole in the ring 
expect to see on channel L: [1,0]* 
expect to see on channel M: [0,1]* 
expect to see on channel R: [0,1]* 
# log for channel: L
1
0
1
0
# log for channel: M
0
1
0
1
0
# log for channel: R
1
0
1
0
1
