Android / Arduino, how to manage on Play Store

Hi all,
My project is Android / Arduino (B4A + B4R)
I will put the apk on the store.. but the customer must buy the pre-programmed Arduino board from me. The Android is free.
On the description section of the app at the store I will put a link to my website so customers can request the board and pay for it online.
Question: Is this kind of process accepted by Google or it's a violation?

I do not think it is a violation because the "blynk" app would already be a violation.

just add your website:
Developer
Visit Website (your website shop)

We have an App Android and iOS that only works with Hardware that we sell online.

if you add the link in the description, and Google doesn't like it, they will tell you and you will have the option to update it.

hatzisn said:

I do not think it is a violation because the "blynk" app would already be a violation.

Click to expand...

Thanks,
Not using Blynk app though