LEBANGSHOU 5V - 12V AT89C2051 Multi-function Six-digit LED DIY Electronic Clock Kit - Multi-a
LEBANGSHOU 5V - 12V AT89C2051 Multi-function Six-digit LED DIY Electronic Clock Kit
Reasonable circuit layout design.
Use your creativity to DIY your LED clock!
Voltage: 5V - 12V
Function: clock / alarm / countdown / stopwatch / counter
Six major functions:
1. Clock function
2. Timing function
3. Alarm clock function
4. Countdown function
5. Stopwatch function
6. Counter function
Instructions for use:
1. Function button description: S1 is the function selection button, S2 is the function expansion button, and S3 is the value plus one button.
2. Function and operation description: During operation, press S1 for a short time ( less than 1 second ) to continuously cycle through the above six functions. If you press and hold (more than 2 seconds) S1 in the middle, you will immediately return to the state of the clock function.
1. Clock function: 10:10:00 after power-on, the meaning is perfect.
2. School time function: short press S1 once, that is, the current time is flashing state, press S2 to add 1 to the hour, press S3 to add 1 to the minute, and the second is not adjustable.
3. Alarm clock function: short press S1 twice, the display status is 22:10:00, and the colon is long bright. Press S2 to add 1 to the hour, press S3 to add 1 to the minute, and the second is not adjustable. When the hour digit exceeds 23, the is displayed, which means the alarm function is turned off. The alarm sounds for the buzzer for 3 seconds.
4. Countdown function: Short press S1 three times, the display status is 0. Press S2 to display the high position from the low position. Press S3 to increase the corresponding bit. When S2 is pressed to the 7th time, it will start counting down in the set time state. Press S2 again to enter the adjustment function again. And stop counting down.
5. Stopwatch function: Short press S1 four times, the display status is 00:00:00, and the colon is long bright. Press S2 to start the stopwatch. Press S2 again to stop the timer. When the timer is stopped, press S3 to clear the stopwatch.
6. Counter function: Short press S1 five times, the display status is 00:00:00, press S2 to increase the counter, press S3 to clear the counter.
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