4-Digit Electronic Microcontroller Digital Clock Production Parts C51 DIY Kit

The microcontroller program in this kit has been written and no source code or program is provided.
A Four Bit Electronic Clock Kit Based on AT89C2051
Power supply voltage: 3V-5V Recommended: 5V Travel time is more accurate
PCB size: length 52mm * width 42mm
Function: 1. Second correction (for precise timing)


2. It can be switched to a minute second independent display interface
3. On hour reporting (8-20 on hour reporting for 3 seconds,can be turned off)
4. Two way alarm settings (alarm function can be turned off)



Kit features: A. Using a 0.56-inch clock dedicated red digital tube for display;
B. Imported AT89C2051 as the main control chip;
C. The 1.2mm thick PCB is made of military grade FR-4 board;
D. Accurate travel time with an error range of -1 to+1 second every 24 hours

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