Electronic Letter Box Project Proposal.docx

Electronic Letter Box Project Proposal.docx - ECE103L...

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ECE103L – INDUSTRIAL ELECTRONICS LABORATORY Project Proposal Electronic Letter Box I. Description When a letter is dropped into someone’s letter box, the LED attached at the output stops blinking which indicates that there is a letter inside the letter box. II. Block Diagram III. Main Components LDR (Light Dependent Resistor): A device whose sensitivity is based on the strength of the light inclined on it. With the increase in the strength of the light, the resistance of the LDR decreases.
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