A standard multiplexed 6 by 4 LED matrix contains a total of _______ independent light-emitting nodes, which can be fully operated using a minimum of _______ microcontroller control pins.
24; 10
To answer this question, we need to understand how a multiplexed LED matrix works and how to determine the number of independent light-emitting nodes and the microcontroller control pins required.
Understanding a Multiplexed LED Matrix
A multiplexed 6 by 4 LED matrix is a grid of LEDs arranged in 6 rows and 4 columns. The total number of independent light-emitting nodes is the product of the number of rows and columns.
Calculations for the total independent nodes:
- Number of rows: 6
- Number of columns: 4
- Total light-emitting nodes = 6 * 4 = \(24\)
Hence, the total number of independent light-emitting nodes in the matrix is 24.
Determining Necessary Microcontroller Control Pins
For a multiplexed LED matrix, you need to control each row and each column separately, which typically requires one control pin per row and one per column.
Calculations for control pins:
- Control pins for rows: 6
- Control pins for columns: 4
- Total control pins required = 6 + 4 = \(10\)
Therefore, a minimum of 10 microcontroller control pins are required to operate a 6 by 4 LED matrix.
Conclusion
From the calculations, we conclude that:
- The total number of independent light-emitting nodes is 24.
- The minimum number of microcontroller control pins needed is 10.
Based on the explanation above, the correct answer is: 24; 10.
Similar Questions
When building a basic 6 by 4 LED matrix display, what is the total number of individual LEDs required to complete the grid?
In premium solid-state architectures requiring high color rendering indices, what unique structural method is used to construct a standard commercial white LED light bulb?
Important Questions from LED Lights
Which of the following elements is NOT suitable for the fabrication of a light emitting diode structure?
A PN junction diode that ____ when activated is called a/an _______.
The IR LED sends out light with wavelengths ________ visible light.
LED is a _______ junction diode that emits light when activated.
Which one of the following LED emits an invisible light?
