Podcast
Questions and Answers
Most of the time we use ______ to get input value in our projects.
Most of the time we use ______ to get input value in our projects.
keys
The 4×4 matrix keypad is a device that can solve the problem of ______ GPIO pins.
The 4×4 matrix keypad is a device that can solve the problem of ______ GPIO pins.
losing
The 4×4 matrix keypad has ______ keys.
The 4×4 matrix keypad has ______ keys.
16
The 4×4 matrix keypad is an ______ device.
The 4×4 matrix keypad is an ______ device.
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The 4×4 matrix keypad is organized in a matrix of ______ and columns.
The 4×4 matrix keypad is organized in a matrix of ______ and columns.
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To detect a pressed key, the microcontroller grounds all ______ by providing 0 to the output latch.
To detect a pressed key, the microcontroller grounds all ______ by providing 0 to the output latch.
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After pressing the ______ key, it makes the contact of the row with the column.
After pressing the ______ key, it makes the contact of the row with the column.
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If one of the column bits has a zero, this means that a ______ press has occurred.
If one of the column bits has a zero, this means that a ______ press has occurred.
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The microcontroller will ground the row by providing a low to row ______ only.
The microcontroller will ground the row by providing a low to row ______ only.
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The 7-segment display consists of seven ______ arranged in an ‘8’-shaped pattern.
The 7-segment display consists of seven ______ arranged in an ‘8’-shaped pattern.
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Each segment ______ has one of its connection pins brought directly out of the rectangular plastic package.
Each segment ______ has one of its connection pins brought directly out of the rectangular plastic package.
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The pins are labeled with the letters ‘a’ through ______.
The pins are labeled with the letters ‘a’ through ______.
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A 7-segment display is made up of ______ independent LEDs housed in a single package.
A 7-segment display is made up of ______ independent LEDs housed in a single package.
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In a common ______ display, the com pin is connected to VCC, and each segment (a-g) is individually grounded to illuminate it.
In a common ______ display, the com pin is connected to VCC, and each segment (a-g) is individually grounded to illuminate it.
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To display the number 4 on a 7-segment display, you must illuminate the appropriate ______ segments.
To display the number 4 on a 7-segment display, you must illuminate the appropriate ______ segments.
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Each ______ segment of a 7-segment display requires its current-limiting resistor to prevent damage.
Each ______ segment of a 7-segment display requires its current-limiting resistor to prevent damage.
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A LOW condition (switch to ______) is required to activate the LED segments on this common anode display.
A LOW condition (switch to ______) is required to activate the LED segments on this common anode display.
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Typically, a standard red 7-segment display requires approximately ______ mA to illuminate correctly.
Typically, a standard red 7-segment display requires approximately ______ mA to illuminate correctly.
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A 7-Segment Display has ______ segments.
A 7-Segment Display has ______ segments.
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The ______ pin is required for a common anode display.
The ______ pin is required for a common anode display.
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The ______ pin is required for a common cathode display.
The ______ pin is required for a common cathode display.
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The system requires a ______ display to display numbers 0-9.
The system requires a ______ display to display numbers 0-9.
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The system uses an ______ as the core of the system.
The system uses an ______ as the core of the system.
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The remaining LED pins are wired together to form a single common ______.
The remaining LED pins are wired together to form a single common ______.
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Each segment can be individually turned on or off by setting the corresponding pin to HIGH or ______.
Each segment can be individually turned on or off by setting the corresponding pin to HIGH or ______.
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By lighting up individual segments, you can create any numerical character and even some basic representations of ______.
By lighting up individual segments, you can create any numerical character and even some basic representations of ______.
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The internal structure of both common cathode and common anode displays is nearly ______.
The internal structure of both common cathode and common anode displays is nearly ______.
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In a common cathode display, the com pin is connected to ______, and a positive voltage is applied to each segment (a-g) to illuminate it.
In a common cathode display, the com pin is connected to ______, and a positive voltage is applied to each segment (a-g) to illuminate it.
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There are two types of seven-segment displays: common ______ (CC) and common anode (CA).
There are two types of seven-segment displays: common ______ (CC) and common anode (CA).
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