Hi anyone
I am trying send messages via serial port and arduino uno to neopixelmatrix, but i can´t read de serial port data and paste to neopixel, do you know how can i do it
What problem are you experiencing?
What kind of messages are you sending? E.g. text from a trminal program like Serial monitor? Or binary data?
What does that mean?
Ok this is my problem
if (Serial.available() > 0)
data = Serial.read(); // copy
else
{
matrix.fillScreen(0);
matrix.setCursor(2,14);
matrix.print(F(data)); // paste
matrix.show();
}
and the error message is:
Arduino:1.8.15 (Windows 10), Tarjeta:"Arduino Uno"
In file included from D:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino/Arduino.h:28:0,
from sketch\Presentador_V2.0.ino.cpp:1:
D:\OneDrive\PDF\Imágenes\Documents\Arduino\matrixtest\Presentador_V2.0\Presentador_V2.0.ino: In function 'void loop()':
D:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino/WString.h:38:74: error: initializer fails to determine size of '__c'
#define F(string_literal) (reinterpret_cast<const __FlashStringHelper *>(PSTR(string_literal)))
^
D:\OneDrive\PDF\Imágenes\Documents\Arduino\matrixtest\Presentador_V2.0\Presentador_V2.0.ino:108:18: note: in expansion of macro 'F'
D:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino/WString.h:38:74: error: array must be initialized with a brace-enclosed initializer
#define F(string_literal) (reinterpret_cast<const __FlashStringHelper *>(PSTR(string_literal)))
^
D:\OneDrive\PDF\Imágenes\Documents\Arduino\matrixtest\Presentador_V2.0\Presentador_V2.0.ino:108:18: note: in expansion of macro 'F'
exit status 1
Error compilando para la tarjeta Arduino Uno.
Este informe podría contener más información con
"Mostrar salida detallada durante la compilación"
opción habilitada en Archivo -> Preferencias.
and i use serial terminal
Please post your full code. The easiest to do it correctly is
- In the IDE, use tools -> autoformat; this will sort out indentations.
- In the IDE, use edit -> copy for forum; this will copy the code to the clipboard.
- In a new reply, paste the copied code.
- Save the reply.
#include <Mouse.h>
// Adafruit_NeoMatrix example for tiled NeoPixel matrices. Scrolls
// 'Howdy' across three 10x8 NeoPixel grids that were created using
// NeoPixel 60 LEDs per meter flex strip.
#include <Adafruit_GFX.h>
#include <Adafruit_NeoMatrix.h>
#include <Adafruit_NeoPixel.h>
#include <Fonts/FreeMonoBold12pt7b.h>
#include <Fonts/AGENCYR9pt7b.h>
#ifndef PSTR
#define PSTR // Make Arduino Due happy
#endif
#define PIN 5
// Declaracion de variable comunicacion
// Comandos
// 01 - Configuracion
// 02 - Datos para un Renglon 5 caracteres ascii
// Trama comando configuracion
// 0x02 "01" "1"
// MATRIX DECLARATION:
// Parameter 1 = width of EACH NEOPIXEL MATRIX (not total display) // Se refiere al tamaño de la matriz de leds 8x8 16x16 32x64, si es el caso de una pantalla
// Parameter 2 = height of each matrix Formada con varias matrices se indica el arrego de m renglones n columnas
// Parameter 3 = number of matrices arranged horizontally numero de matrices que forman horizontalmente el renglon (n columnas)
// Parameter 4 = number of matrices arranged vertically Numero de matrices que forma verticalmente el renglol (n renglones9
// Parameter 5 = pin number (most are valid)
// Parameter 6 = matrix layout flags, add together as needed:
// NEO_MATRIX_TOP, NEO_MATRIX_BOTTOM, NEO_MATRIX_LEFT, NEO_MATRIX_RIGHT:
// Position of the FIRST LED in the FIRST MATRIX; pick two, e.g.
// NEO_MATRIX_TOP + NEO_MATRIX_LEFT for the top-left corner.
// NEO_MATRIX_ROWS, NEO_MATRIX_COLUMNS: LEDs WITHIN EACH MATRIX are
// arranged in horizontal rows or in vertical columns, respectively;
// pick one or the other.
// NEO_MATRIX_PROGRESSIVE, NEO_MATRIX_ZIGZAG: all rows/columns WITHIN
// EACH MATRIX proceed in the same order, or alternate lines reverse
// direction; pick one.
// NEO_TILE_TOP, NEO_TILE_BOTTOM, NEO_TILE_LEFT, NEO_TILE_RIGHT:
// Position of the FIRST MATRIX (tile) in the OVERALL DISPLAY; pick
// two, e.g. NEO_TILE_TOP + NEO_TILE_LEFT for the top-left corner.
// NEO_TILE_ROWS, NEO_TILE_COLUMNS: the matrices in the OVERALL DISPLAY
// are arranged in horizontal rows or in vertical columns, respectively;
// pick one or the other.
// NEO_TILE_PROGRESSIVE, NEO_TILE_ZIGZAG: the ROWS/COLUMS OF MATRICES
// (tiles) in the OVERALL DISPLAY proceed in the same order for every
// line, or alternate lines reverse direction; pick one. When using
// zig-zag order, the orientation of the matrices in alternate rows
// will be rotated 180 degrees (this is normal -- simplifies wiring).
// See example below for these values in action.
// Parameter 7 = pixel type flags, add together as needed:
// NEO_RGB Pixels are wired for RGB bitstream (v1 pixels)
// NEO_GRB Pixels are wired for GRB bitstream (v2 pixels)
// NEO_KHZ400 400 KHz bitstream (e.g. FLORA v1 pixels)
// NEO_KHZ800 800 KHz bitstream (e.g. High Density LED strip)
// Example with three 10x8 matrices (created using NeoPixel flex strip --
// these grids are not a ready-made product). In this application we'd
// like to arrange the three matrices side-by-side in a wide display.
// The first matrix (tile) will be at the left, and the first pixel within
// that matrix is at the top left. The matrices use zig-zag line ordering.
// There's only one row here, so it doesn't matter if we declare it in row
// or column order. The matrices use 800 KHz (v2) pixels that expect GRB
// color data.
//
Adafruit_NeoMatrix matrix = Adafruit_NeoMatrix(16, 16, 2, 1, PIN,
NEO_TILE_TOP + NEO_TILE_RIGHT + NEO_TILE_ROWS + NEO_TILE_PROGRESSIVE +
NEO_MATRIX_TOP + NEO_MATRIX_RIGHT + NEO_MATRIX_ROWS + NEO_MATRIX_ZIGZAG,
NEO_RGB + NEO_KHZ800);
const uint16_t colors[] = {
matrix.Color(255, 0, 0), matrix.Color(0, 255, 0), matrix.Color(0, 0, 255)
};
void setup() {
Serial.begin(9600);
matrix.setFont(&AGENCYR9pt7b);
matrix.setTextSize(1, 1);
matrix.begin();
matrix.setTextWrap(false);
matrix.setBrightness(20);
matrix.setTextColor(colors[0]);
}
int x = matrix.width();
int pass = 0;
int teventa = 0;
int teventb = 0;
void loop() {
if (Serial.available() > 0)
dat_ser = Serial.read();
else
{
matrix.fillScreen(0);
matrix.setCursor(2, 14);
matrix.print(F(dat_ser));
if (--x < -60) {
x = matrix.width();
if (++pass >= 3) pass = 0;
matrix.setTextColor(colors[pass]);
}
}
matrix.show();
delay(100);
teventa++;
}
That doesn't seem to be the code that causes the given error. I get the below error
error: 'dat_ser' was not declared in this scope
dat_ser = Serial.read();
And the other problem is the use of the F macro in this line
matrix.print(F(dat_ser));
Change it to
matrix.print(dat_ser);
Not quite sure why you include Mouse.h on an Uno.
Hi!!! Again...
I could fix the program but now i have a nice trouble...
I have a display with 2 tiled matrix 16x16 and i use neo_matrix font to fill with bigger font when i set 2 horizontal matrix and 1 vertical matrix and activate serial port com the neopixel dont work but if i use 1 horizontal and 1 vertical the systems works very goog any suggestion?
// Adafruit_NeoMatrix example for tiled NeoPixel matrices. Scrolls
// 'Howdy' across three 10x8 NeoPixel grids that were created using
// NeoPixel 60 LEDs per meter flex strip.
#include <Adafruit_GFX.h>
#include <Adafruit_NeoMatrix.h>
#include <Adafruit_NeoPixel.h>
#include <Fonts/FreeMonoBold12pt7b.h>
#include <Fonts/AGENCYR9pt7b.h>
#ifndef PSTR
#define PSTR // Make Arduino Due happy
#endif
#define PIN 6
#define st_t 0x00
#define end_t 0x01
String dat_ser;
String dat_serb;
float a=12.3;
char dat_sera;
char contador;
char dat_c[5];
char end_receive;
int i;
// Declaracion de variable comunicacion
// Comandos
// 01 - Configuracion
// 02 - Datos para un Renglon 5 caracteres ascii
// Trama comando configuracion
// 0x02 "01" "1"
// MATRIX DECLARATION:
// Parameter 1 = width of EACH NEOPIXEL MATRIX (not total display) // Se refiere al tamaño de la matriz de leds 8x8 16x16 32x64, si es el caso de una pantalla
// Parameter 2 = height of each matrix Formada con varias matrices se indica el arrego de m renglones n columnas
// Parameter 3 = number of matrices arranged horizontally numero de matrices que forman horizontalmente el renglon (n columnas)
// Parameter 4 = number of matrices arranged vertically Numero de matrices que forma verticalmente el renglol (n renglones9
// Parameter 5 = pin number (most are valid)
// Parameter 6 = matrix layout flags, add together as needed:
// NEO_MATRIX_TOP, NEO_MATRIX_BOTTOM, NEO_MATRIX_LEFT, NEO_MATRIX_RIGHT:
// Position of the FIRST LED in the FIRST MATRIX; pick two, e.g.
// NEO_MATRIX_TOP + NEO_MATRIX_LEFT for the top-left corner.
// NEO_MATRIX_ROWS, NEO_MATRIX_COLUMNS: LEDs WITHIN EACH MATRIX are
// arranged in horizontal rows or in vertical columns, respectively;
// pick one or the other.
// NEO_MATRIX_PROGRESSIVE, NEO_MATRIX_ZIGZAG: all rows/columns WITHIN
// EACH MATRIX proceed in the same order, or alternate lines reverse
// direction; pick one.
// NEO_TILE_TOP, NEO_TILE_BOTTOM, NEO_TILE_LEFT, NEO_TILE_RIGHT:
// Position of the FIRST MATRIX (tile) in the OVERALL DISPLAY; pick
// two, e.g. NEO_TILE_TOP + NEO_TILE_LEFT for the top-left corner.
// NEO_TILE_ROWS, NEO_TILE_COLUMNS: the matrices in the OVERALL DISPLAY
// are arranged in horizontal rows or in vertical columns, respectively;
// pick one or the other.
// NEO_TILE_PROGRESSIVE, NEO_TILE_ZIGZAG: the ROWS/COLUMS OF MATRICES
// (tiles) in the OVERALL DISPLAY proceed in the same order for every
// line, or alternate lines reverse direction; pick one. When using
// zig-zag order, the orientation of the matrices in alternate rows
// will be rotated 180 degrees (this is normal -- simplifies wiring).
// See example below for these values in action.
// Parameter 7 = pixel type flags, add together as needed:
// NEO_RGB Pixels are wired for RGB bitstream (v1 pixels)
// NEO_GRB Pixels are wired for GRB bitstream (v2 pixels)
// NEO_KHZ400 400 KHz bitstream (e.g. FLORA v1 pixels)
// NEO_KHZ800 800 KHz bitstream (e.g. High Density LED strip)
// Example with three 10x8 matrices (created using NeoPixel flex strip --
// these grids are not a ready-made product). In this application we'd
// like to arrange the three matrices side-by-side in a wide display.
// The first matrix (tile) will be at the left, and the first pixel within
// that matrix is at the top left. The matrices use zig-zag line ordering.
// There's only one row here, so it doesn't matter if we declare it in row
// or column order. The matrices use 800 KHz (v2) pixels that expect GRB
// color data.
//
Adafruit_NeoMatrix matrix = Adafruit_NeoMatrix(16,16,2, 1, PIN,
NEO_TILE_TOP + NEO_TILE_RIGHT + NEO_TILE_ROWS + NEO_TILE_PROGRESSIVE +
NEO_MATRIX_TOP + NEO_MATRIX_RIGHT + NEO_MATRIX_ROWS + NEO_MATRIX_ZIGZAG,
NEO_RGB + NEO_KHZ800);
const uint16_t colors[] = {
matrix.Color(255, 0, 0), matrix.Color(0, 255, 0), matrix.Color(0, 0, 255)
};
void setup() {
Serial.begin(9600);
//matrix.setTextSize(1, 1);
matrix.begin();
matrix.setFont(&AGENCYR9pt7b);
matrix.setTextWrap(false);
matrix.setBrightness(20);
matrix.setTextColor(colors[0]);
i=0;
}
int x = matrix.width();
int pass = 0;
int teventa = 0;
int teventb = 0;
void loop() {
if (Serial.available() >0 )
{
dat_sera = Serial.read();
if (dat_sera!= 10)
{
dat_c[i]=dat_sera;
i++;
}
}
else
{
i=0;
dat_serb=atof(dat_c);
// Serial.print(dat_serb);
matrix.fillScreen(0);
matrix.setCursor(2, 14);
matrix.print(dat_serb);
}
if (--x < -36) {
x = matrix.width();
if (++pass >= 3) pass = 0;
matrix.setTextColor(colors[pass]);
}
matrix.show();
delay(100);
teventa++;
}I'm not familiar with NeoMatrix so can't advise.
If you're running this on an Uno, you might be running out of memory. 16x16x2=512 pixels, multiply by 3 for the three colours and you're using 1536 bytes of RAM. Not sure how this is affected by the layout, though.
True, you may be right, I had not seen it that way, I was guided by the data that the compiler gives ... thanks
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