Your beacon has a unique code and must be registered into the French UAV platform "Alphatango"

First you will have to choose 3 letters havinf a "meaning" for you ! In the code it is "TRI"

/********************************************************************************************************************
   MODIFIEZ LES VALEURS ICI
 ********************************************************************************************************************/
// Set these to your desired credentials.
const char ssid[] = "TRI01_droneID"; //Le nom du point d'acces wifi CHANGEZ LE par ce que vous voulez !!!
const char *password = "your pass";     //Mot de passe du wifi
//IMPORTANT --> CHANGEZ l'ID du drone par celui que Alphatango vous a fourni (Trigramme + Modèle + numéro série) !
const char drone_id[] = "000TRI000000000000000000099991";

• So change TRI by a trigram of your choice. Then do not touch the 3 first 000
• Do not touch either the length of the code
• But you can change the numbers by which ever you want

Now that you have choosen an Id you have to check if it is a valid one AND a not already used one...

The solution is to "register a new plane" on the french Alphatango.

You have to tick the box has shown and enter twice the ID you have choosen.

Now click on "save" button and it's done. If success then the ID was free. If it fails choose another one !