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Examoogle • User • info@examoogle.com • EE-2024-8821
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To identify that which key is being pressed, we need to:
ground all the pins of the port at a time
ground pins of the port one at a time
connect all the pins of the port to the main supply at a time
none of the mentioned
ground pins of the port one at a time
Quick Summary: Practice and solve "To identify that which key is being pressed, we need to:..." for Electrical - Microprocessor. The correct answer is Option B: ground pins of the port one at a time. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Answer:
Option **(b) **