robot debug

bricks/special/robot-update.lua

@@ -18,6 +18,7 @@ end
 return function(gate)
 	print("robot update")
 	if not gate.waiting then
+		print("not waiting")
 		local action = ""
 		if Gate.getportstate(gate, 7)~=0 then -- remove brick
 			action = action.."R\t"
@@ -62,5 +63,7 @@ return function(gate)
 			Gate.cb(gate, action:sub(1, #action-1))
 			gate.waiting = true
 		end
+	else
+		print("waiting")
 	end
 end