Project Idea for school security system

Question

Hai friends.,
  
    I am going to start project for school security system.In that i will be using Barcode acceptance and sending sms to parents about student status(daily activity,result,event information and etc).And the school contain many branches so i could able  to work with any branches about other branches information using branch id. As i am a beginner in c#,i dont know which platform for suitable to my project.please help me.