Digital School bell timer

Automatic School Bell Timer Based on the latest microcontoller technology. Automatic Bell Timer System is an elegant device especially designed to ring the Schools/Colleges/Industry Bell automatically. There is no need to assign an individual for ringing the bell, at different times during the day. A user can program various timings of the periods, Short breakes, etc. With the provision of 30 bells/day, a user can set the length of each bell separately (5 types) , to identify different bells at different times, for example, separate bell for assembly, separate bell for recess, separate for periods, etc. It has a crystal-clear LCD display, which helps the user to read & set various parameters easily. In case of power failure, all settings and Real Time Clock, are saved for 3 years. {SBT-2025 INBUILT AUDIO FILE LIST} 01--PERIOD NUMBER 1 02--PERIOD NUMBER 2 03--PERIOD NUMBER 3 04--PERIOD NUMBER 4 05--PERIOD NUMBER 5 06--PERIOD NUMBER 6 07--PERIOD NUMBER 7 08--PERIOD NUMBER 8 09--DIARY CHECK 10--LONG BELL 11--NATIONAL ANTEM IN 52 SECONDS 12--ASSEMBLY AUDIO NOTE AND BELL 13--VANDEMATRAM (HINDI) 14--LUNCH ALERT 15--LUNCH TIME OVER 16--EXAMINATION TIME START 17--FIRST EXAM HOUR OVER 18--SECOND EXAM HOUR OVER 19--EXAMINATION OVER 20--TEA BRAEK TIME 21--TRANSPORT ALERT 22--SCHOOL OFF 23--HUM HONGE KAMYAB EK DIN 24--INSTRUMENTAL (SARE JAHAN SE ACHCHHA) 25--PRAYER (HAR DESH ME TU HAR VESH ME TU) 26--PRAYER (SUBAH SAVERE LEKAR TERA NAM PRABHU) 27-- AUDIO NOTE FOR ASSEMBLY IN COVID-19 SITUATION 28-- COVID-19 SAFETY ALERT MESSAGE 29--INDIAN NATIONAL PLEDGE IN ENGLISH 30--ONE PERIOD BELL 31--TWO PERIOD BELL 32--THREE PERIOD BELL 33--FOUR PERIOD BELL 34--FIVE_PERIOD BELL 35--SIX_PERIOD BELL 36--SEVEN_PERIOD BELL 37--EIGHT_PERIOD BELL