A simple pomodoro timer
(Add a triode to the buzzer, the sound is too low now)
The function and implementation logic are very simple. The code you write according to your needs is the positive timing of a Pomodoro. The white button in the upper right corner of the front can set the period of the Pomodoro. There are three periods set in the code, and the default is 45 minutes. , and then there are 30 minutes and 60 minutes. After the timer reaches the set period, the buzzer in the lower right corner of the front will beep for three seconds, and then a new round of timer will restart after 5 minutes.
These 5 minutes You can drink a glass of water, get up, walk around, do a few push-ups and stretch your neck... or so I thought.
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