Led display göstergeli ayarlanabilir uyarılı zamanlayıcı

Zamanlama devresi 16f84 denetleyici ve cd4511 dekoder entegreleri üzerine kurulu 7 segment led display göstergesi ve buzer ile ses uyarısı verebiliyor 1,2,3 numaralı butonlar ile ayarlama yapılıyor kaynak MPASM assembler .asm yazılımı bulunmakta

Zamanlayıcı devre şeması

darkroom-timer ASM
darkroom-timer (info) TXT

Darkroom timer

The purpose of this project is to present a device that is useful and at the
same time demonstrate to the beginner many features involved in programming
the PIC. Some of the topics included are:

* Simple use of MPASM assembler
* Demonstration of use of timer 0 and the prescaler
* Use of length of instructions to set up timing delays
* Using interrupt routines
* Detection of switch closures including debouncing
* Saving and recovering data from the onboard EEPROM