Is a small change in the submitted abstract and the final project allowed?

In my project I needed two micro controllers. As Renesas was giving only one GR-Peach board to the top 150 abstracts, in the abstract I had mentioned that I'll be using one GR-Peach and one Arduino UNO for the project.

But however, I won a second GR-Peach board from Renesas Electronics Singapore Facebook page in a giveaway contest.

Now I'm designing my whole project using the two GR-Peach boards and not using the Arduino UNO board as mentioned in the abstract submitted.

Please guide me. Is a small change in the micro controller board allowed?

Thank You!