LED Electronic Clock

In the non-set state, press the left button to enter the time adjustment (note that the colon in the middle is bright), at this time “minute” starts to flash, press the right button to increase, the adjustment range is 00~59. After adjusting the “minute”, press the left button again, at this time the “hour” starts to flash, press the right button to increase, the adjustment range is 00-23. After adjusting the “hour”, press the left button to enter the date adjustment (note that the colon in the middle is off), at this time the “day” starts to flash, press the right button to increase, and the adjustment range is 1-31. After adjusting the “day”, press the left button again, the “month” starts to flash at this time, press the right button to increase, the adjustment range is 1-12. After adjusting the date, press the left button again, the “year” starts to flash at this time, press the right button to increase, and the adjustment range is 2012-2049. After adjusting the “year”, press the left button again to enter the display voltage error calibration function [x.xU], the unit is 0.1V, a positive number means increase, and a negative number means decrease. Then press the left button again to enter the temperature error calibration setting [Ac:xx], xx represents the correction value, press the right button to increase, a positive number represents an increase, a negative number represents a decrease, and the unit is degrees. Press the left button again to enter the dd option of the definition function of the display item in the cycle display state, press the right button to change the value: (dd:0) time + temperature + voltage, (dd:1) time + voltage, (dd: 2) time + Temperature, (dd: 3) temperature + voltage. Press the left button again to enter the cycle display alternate interval time dF option, press the right button to change the value, the larger the value, the longer the interval. Press the left button again to enter [LL:xx] brightness setting, LL:1 is the darkest, LL:3 is the brightest. Press the left button again to enter [AL: x] automatic brightness function setting, AL:0 turn off, AL:1 turn on. When it is set to AL: 1 most, it will automatically become level 1 brightness after 19:00 every day, and automatically become level 3 brightness after 7 am. Finally, press the left button again to save all set values and return to the normal display state.

2. Switch display items
In the non-set state, press the right button to switch the display items, and the display will switch between time —> date —> temperature —> voltage —> alternate cycle display.