Description
A 4-digit combination lock based on 9-keys 1 – 9 and reset on every wrong key press.
A 4-digit combination lock based on 9-keys 1 – 9 and reset on every wrong key press.
Conceptual Learning | Internal working of 10 stage counter, sequential logic, changing the password, practical applications, reset on wrong key press. |
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Age Group | Std 6 onwards |
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