PIC based count down timer

Here is another countdown timer based on the PIC16F886 microcontroller. The timer displays the time on four bright 7-segment LEDs, which are driven by a TLC5916 LED driver chip. The timer flashes the seven segment LEDs when the time is up. The timer settings are done with a rotary encoder with a push button, and gets powered from two AAA batteries.

Seven segment LED timer

Seven segment LED timerdigital timer, PIC16F886

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