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Led light control of th thingy.

Hello,

I try to control led light of the thingy52 throw a MIT app inventor application.

I use the UUID : ef680300-9b35-4933-9b10-52ffa9740042

and thr characterixtic : ef680301-9b35-4933-9b10-52ffa9740042

I try to send 4 byes : 1 - 0 - 255 - 0, in order to have a green constant light.

But it does not do anything.

When I want to read the characteritics, it send me 2 2 20 172 13.

But I dont understand why the is 13 in th chain.

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