Rule to send message to Node
FredRoot last edited by
I have this simple rule to test data tx to a node:
rule "Test" when Item Test_Btn changed then sendCommand(Test_Btn, "30;200;1;0;3;ON") end
and Test_Btn is defined as the following item:
Switch Test_Btn "Test Btn"
When I press the button, I get the following error:
18:18:34.161 [INFO ] [smarthome.event.ItemCommandEvent ] - Item 'Test_Btn' received command OFF 18:18:34.182 [INFO ] [marthome.event.ItemStateChangedEvent] - Test_Btn changed from ON to OFF 18:18:34.199 [ERROR] [.script.engine.ScriptExecutionThread] - Rule 'Test': The argument 'command' must not be null or empty.
What does "The argument 'command' must not be null or empty" mean?