hi i am in the middle of designing a very simple door alarm. please can someone help me decide which way to proceed on the wireless side.(data to be transmitted simple on off) please advise me on the cheapest option. distance max 10m. also how would i be able to play music through arduino. thank…

cheap wireless communication

Topic		Replies	Views
Very Cheap Wireless Exhibition	14	4554	May 6, 2021
Simple one way wireless switch General Guidance	11	21029	May 5, 2021
Playing speech without arduino Audio	5	2308	May 6, 2021
Arduino Wireless Interfacing	15	6785	May 6, 2021
Wireless transmission of sound Interfacing	4	2436	May 6, 2021