Uploaded August 2016 | Updated September 2026, 1 week ago

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Purchased from here: amzn.to/2JMKaVv

I explain in detail the inner workings and assembly of a relatively simple LED clock kit. The finished clock has high accuracy and allows the user to program two alarms.

Datasheets:
ATMEL AT89C2051: atmel.com/images/doc0368.pdf