Mini kitchen timer
Kitchen timer, project contains 2 pcbs, main board with 89c2051 mcu and front panel with displays and buttons, just turn timer on and set time witch M and S buttons and start counting by pressing START/STOP button, also with this button you can pause counting. When countdown is finished, buzzer starts beeping until you press START/STOP button. The less important zeros are turned off ! Just watch the video :)
Remember also to order front panel gerber file !
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Supply voltage - 3 - 5V, you can power it from USB or 2x or 3xAA/AAA batteries
Mini kitchen timer
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