如何逆转Arduino中的LED矩阵
How to reverse a led matrix in Arduino?
大家好,
首先,您应该知道我仍然是编码的初学者,而且我的经验也很低,刚从Hello World Message开始:)
基本上,我试图在Arduino中翻转LED矩阵,我不知道该怎么做。
在这里,它向我解释了如何做,但是由于我是初学者,我不知道从哪里开始https://embed.gyazo.com/042DA7E20A9A17773AAD7D827D8222C08F3.png
我要改进的项目是一个https://www.youtube.com/watch?v=x35hbe7k3da
我通过重写处理代码来成功,接下来,我将将矩阵更改为32 x 64个,但是现在我坚持不了解下一步该怎么做。目前,我正在阅读有关Adafruit LED矩阵如何通过阅读硬件库的文档的工作。
任何帮助都非常感谢,谢谢!
这是代码
/*
Arduino - Processing Real Time Spectrum Analyzer
This program is intended output a FFT from a pc on a RGB matrix
The program is based on the adafruit RGB matrix library: https://learn.adafruit.com/32x16-32x32-rgb-led-matrix/
The FFT results in the complimentary processing code handles 64 bands so the code calls for 2 panels, but can be modified for only one easily
More information, including full parts list and videos of the final product can be seen on 12vtronix.com
Youtube video sample: https://www.youtube.com/watch?v=X35HbE7k3DA
Created: 22nd Sep 2013 by Stephen Singh
Last Modified: 10th May 2014 by Stephen Singh
Variables with the <-O-> symbol indicates that it can be adjusted for the reason specified
*/
#include <avr/pgmspace.h>
#include <Adafruit_GFX.h> // Core graphics library
#include <RGBmatrixPanel.h> // Hardware-specific library
#define CLK 8 // MUST be on PORTB!
#define LAT A3
#define OE 9
#define A A0
#define B A1
#define C A2
// Last parameter = 'true' enables double-buffering, for flicker-free,
// buttery smooth animation. Note that NOTHING WILL SHOW ON THE DISPLAY
// until the first call to swapBuffers(). This is normal.
RGBmatrixPanel matrix(A, B, C, CLK, LAT, OE, true);
// <-O-> the values after "matrix.Color333" represent the RGB values with 7 being the brightest value for that particular colour
void lightcolumns(int rownum, int amplitude)
{
if(amplitude>15) // <-O-> set the threshold for the band to turn red
{
for( int y = 0; y < amplitude; y++){
matrix.drawPixel(rownum, y, matrix.Color333(7, 0, 0));
}
for(int y = amplitude; y <16; y++)
{
matrix.drawPixel(rownum, y, matrix.Color333(0, 0, 0));
}
}
else if(amplitude>13) // <-O-> set the threshold for the band to turn yellow
{
for( int y = 0; y < amplitude; y++){
matrix.drawPixel(rownum, y, matrix.Color333(4, 4, 0));
}
for(int y = amplitude; y < 16; y++)
{
matrix.drawPixel(rownum, y, matrix.Color333(0, 0, 0));
}
}
else if(amplitude>9) // <-O-> set the threshold for the band to turn green
{
for( int y = 0; y < amplitude; y++){
matrix.drawPixel(rownum, y, matrix.Color333(0, 5, 0));
}
for(int y = amplitude; y < 16; y++)
{
matrix.drawPixel(rownum, y, matrix.Color333(0, 0, 0));
}
}
else
{
for( int y = 0; y < amplitude; y++){
matrix.drawPixel(rownum, y, matrix.Color333(0, 0, 7));
}
for(int y = amplitude; y < 16; y++)
{
matrix.drawPixel(rownum, y, matrix.Color333(0, 0, 0));
}
}
}
void setup()
{
matrix.begin();
Serial.begin(115200);
delay(1000);
}
void loop() {
if(Serial.read() == ('M'))
{
int led1 = Serial.parseInt();
int led2 = Serial.parseInt();
int led3 = Serial.parseInt();
int led4 = Serial.parseInt();
int led5 = Serial.parseInt();
int led6 = Serial.parseInt();
int led7 = Serial.parseInt();
int led8 = Serial.parseInt();
int led9 = Serial.parseInt();
int led10 = Serial.parseInt();
int led11 = Serial.parseInt();
int led12 = Serial.parseInt();
int led13 = Serial.parseInt();
int led14 = Serial.parseInt();
int led15 = Serial.parseInt();
int led16 = Serial.parseInt();
int led17 = Serial.parseInt();
int led18 = Serial.parseInt();
int led19 = Serial.parseInt();
int led20 = Serial.parseInt();
int led21 = Serial.parseInt();
int led22 = Serial.parseInt();
int led23 = Serial.parseInt();
int led24 = Serial.parseInt();
int led25 = Serial.parseInt();
int led26 = Serial.parseInt();
int led27 = Serial.parseInt();
int led28 = Serial.parseInt();
int led29 = Serial.parseInt();
int led30 = Serial.parseInt();
int led31 = Serial.parseInt();
int led32 = Serial.parseInt();
if (Serial.read() == 'n')
{
lightcolumns(31, led1);
lightcolumns(30, led2);
lightcolumns(29, led3);
lightcolumns(28, led4);
lightcolumns(27, led5);
lightcolumns(26, led6);
lightcolumns(25, led7);
lightcolumns(24, led8);
lightcolumns(23, led9);
lightcolumns(22, led10);
lightcolumns(21, led11);
lightcolumns(20, led12);
lightcolumns(19, led13);
lightcolumns(18, led14);
lightcolumns(17, led15);
lightcolumns(16, led16);
lightcolumns(15, led17);
lightcolumns(14, led18);
lightcolumns(13, led19);
lightcolumns(12, led20);
lightcolumns(11, led21);
lightcolumns(10, led22);
lightcolumns(9, led23);
lightcolumns(8, led24);
lightcolumns(7, led25);
lightcolumns(6, led26);
lightcolumns(5, led27);
lightcolumns(4, led28);
lightcolumns(3, led29);
lightcolumns(2, led30);
lightcolumns(1, led31);
lightcolumns(0, led32);
matrix.swapBuffers(false);
}
}
}
在哪里调用 matrix.drawPixel
:
matrix.drawPixel(rownum, y, matrix.Color333(0, 0, 7));
用15 - y
替换y
:
matrix.drawPixel(rownum, 15 - y, matrix.Color333(0, 0, 7));
您不能仅将在y
上起作用的for
循环直接将y
与amplitude
进行比较。
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