What's wrong with my simple program?

[ChrisWard]

Hi Kitty

What is the model name of your Arduino? Currently, we are trying to send and receive via the same channel, but it would be interesting to have separate send and receive channels.

The code is not really complicated, if you study it carefully from button click to action, you should be able to understand it.

@kittyqian

And how can I set the servo back to the original position? The good news is at the very beginning, it always backs to the original position.

Answered your own question there.....the Sketch code does it for you.

@kittyqian

And sometimes, when the status shows it is watering and the watering is done,actually there is no response for the servo.

Do you mean you press Button_Water, the "WATERING DONE" message is shown, but the servo didn't actually perform the task? When exactly, does that happen - is it OK before Button_GetMoisture was tapped? (i.e. before there was an error?).