Automatic school bell system for II Liceum Ogólnokształcące im. Jana Śniadeckiego in Kielce
AVR ATmega328P-PU microcontroller was used in this project. Schematic and PCB were made respectively in ExpressSCH and ExpressPCB.
- Controlling school bell system by relay 6A/250VAC or 6A/28VDC
- Direct programming on device or by loading configuration from microSD card (included application to configure)
- Simple and intuitive interface in Polish
- Automatic time transition (summer / winter)
- 4 profiles (Normal, Shortened, Other 1, Other 2), in each ability to set 40 bells
- Setting the calendar for whole school year
- Diffrent duration of the bell for a break and lesson
- Synchronization with DCF77 pattern
- Backup battery for timing in case of power failure
- Maintenance-free, requires only setting the calendar on the begin of each school year.
Instructions of use (PL)
Technical documentation (PL)
Project is available only for illustrative purposes or private usage.
Commercial usage and redistribution without permission of the author is forbidden
