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Note: this kit needs to be built, you will need a soldering iron and solder. It is a fun kit to build and for newcomers, it will not be too difficult either.
Based on the AT89C2051 four electronic clock IC
Supply voltage: 3V-5V
Recommended: 5V
PCB size: length 52mm * width 42mm
1. Seconds correction (for a precise time)
2. Can be switched to separate minutes and seconds display interface
3. Two alarm settings (alarm clock function can be turned off)
Digital electronic clock - DIY kit Manual: AT89C2051_clock_manual