Grove serial LCD v1.1

Good day, I am terribly sorry if off topic, but can you do to help my goryu.Reshil project using IBoard 1.1 and grove-sereal LCD v1.1 … When working through the programming is all well and good, but as soon as I disconnect the programmer and then connect the power supply LCD makes me feel lonely its dark screen (not that did not want to display :frowning:) Although the food is served on him …

Sorry for my English, translated google