Boa noite .
estou com seguinte problema para apagar uma mensagem no programa que estou desenvolvendo com 2 botões e 1 led mostra a mensagem e acende o led com um botão e outro botão apaga o led e a mensagem.
// Program to exercise the chamada de enfermagem
//
//Eng. Ivandro Galdino da Silva
//
// Uses most of the functions in the library
//
// Libraries used
// ==============
// MD_MAX72XX available from GitHub - MajicDesigns/MD_MAX72XX: LED Matrix Library
//
#include <MD_MAXPanel.h>
#include “Font5x3.h”
// Turn on debug statements to the serial output
#define DEBUG 1
#if DEBUG
#define PRINT(s, x) { Serial.print(F(s)); Serial.print(x); }
#define PRINTS(x) Serial.print(F(x))
#define PRINTD(x) Serial.print(x, DEC)
#else
#define PRINT(s, x)
#define PRINTS(x)
#define PRINTD(x)
#endif
// Define the number of devices we have in the chain and the hardware interface
// NOTE: These pin numbers will probably not work with your hardware and may
// need to be adapted
const MD_MAX72XX::moduleType_t HARDWARE_TYPE = MD_MAX72XX::FC16_HW;
const uint8_t X_DEVICES = 4;
const uint8_t Y_DEVICES = 5;
const uint8_t CLK_PIN = 13; // or SCK
const uint8_t DATA_PIN = 11; // or MOSI
const uint8_t CS_PIN = 10; // or SS
// SPI hardware interface
MD_MAXPanel mp = MD_MAXPanel(HARDWARE_TYPE, CS_PIN, X_DEVICES, Y_DEVICES);
// Arbitrary pins
// MD_MAXPanel mx = MD_MAXPanel(HARDWARE_TYPE, DATA_PIN, CLK_PIN, CS_PIN, X_DEVICES, Y_DEVICES);
// We always wait a bit between updates of the display
#define DELAYTIME 200 // in milliseconds
void showUp(void)
// Triangle pointing to the of the display as currently rotated
{
PRINTS("\nTop of display");
char sz = “UP”;
uint8_t w, h;
mp.setFont(_Fixed_5x3);
w = mp.getTextWidth(sz);
h = 5;
mp.clear();
mp.drawTriangle(0, mp.getYMax() / 2, (mp.getXMax() + 1) / 2, mp.getYMax(), mp.getXMax(), mp.getYMax() / 2, true);
mp.drawText((mp.getXMax() - w) / 2, (mp.getYMax() / 2) + 2 + h, sz);
mp.setFont(nullptr);
delay(DELAYTIME * 1);//10
}
void text(MD_MAX72XX::fontType_t *fontData)////////////////////////////////ap301
// Demonstrate the use of drawText()
// Display text in different orientations and fonts
{
PRINTS("\nText");
mp.setFont(fontData);
PRINT(" - Font height: ", mp.getFontHeight());
mp.clear();
mp.drawText(mp.getXMax(), 0, “STOP!!”, MD_MAXPanel::ROT_180);
delay(5 * DELAYTIME);
}
void turnOn()
{text(nullptr);/////////////////em AP301
digitalWrite(7, HIGH);
//showUp();
}
void turnOn1()
{text(nullptr);/////////////////em AP301
digitalWrite(7, HIGH);
//showUp();
}
void turnOff()
{
digitalWrite(7, LOW);
}
void setup(void)
{ pinMode(2, INPUT_PULLUP);
pinMode(3, INPUT_PULLUP);
pinMode(7, OUTPUT);
digitalWrite(7, LOW);
attachInterrupt(digitalPinToInterrupt(2), turnOn, FALLING);
attachInterrupt(digitalPinToInterrupt(3), turnOff, FALLING);
mp.begin();
#if DEBUG
Serial.begin(57600);
#endif
PRINTS("\n[MD_MAXPanel Test & Demo]");
}
void loop(void){
}
////////////////////////////////////////////////////
aba da fonte
Font5x3.h
MD_MAX72XX::fontType_t Fixed_5x3 PROGMEM = {
‘F’, 1, 32, 127, 5,
2, 0, 0, // 32 - ‘Space’
1, 23, // 33 - ‘!’
3, 3, 0, 3, // 34 - ‘"’
3, 31, 10, 31, // 35 - ‘#’
3, 22, 31, 13, // 36 - ‘$’
3, 9, 4, 18, // 37 - ‘%’
3, 10, 21, 26, // 38 - ‘&’
1, 3, // 39
2, 14, 17, // 40 - ‘(’
2, 17, 14, // 41 - ‘)’
3, 10, 4, 10, // 42 - ‘*’
3, 4, 14, 4, // 43 - ‘+’
2, 16, 8, // 44 - ‘,’
3, 4, 4, 4, // 45 - ‘-’
1, 16, // 46 - ‘.’
3, 8, 4, 2, // 47 - ‘/’
3, 31, 17, 31, // 48 - ‘0’
2, 0, 31, // 49 - ‘1’
3, 29, 21, 23, // 50 - ‘2’
3, 17, 21, 31, // 51 - ‘3’
3, 7, 4, 31, // 52 - ‘4’
3, 23, 21, 29, // 53 - ‘5’
3, 31, 21, 29, // 54 - ‘6’
3, 1, 1, 31, // 55 - ‘7’
3, 31, 21, 31, // 56 - ‘8’
3, 23, 21, 31, // 57 - ‘9’
1, 10, // 58 - ‘:’
2, 16, 10, // 59 - ‘;’
3, 4, 10, 17, // 60 - ‘<’
3, 10, 10, 10, // 61 - ‘=’
3, 17, 10, 4, // 62 - ‘>’
3, 1, 21, 3, // 63 - ‘?’
3, 14, 21, 22, // 64 - ‘@’
3, 30, 5, 30, // 65 - ‘A’
3, 31, 21, 10, // 66 - ‘B’
3, 14, 17, 17, // 67 - ‘C’
3, 31, 17, 14, // 68 - ‘D’
3, 31, 21, 17, // 69 - ‘E’
3, 31, 5, 1, // 70 - ‘F’
3, 14, 17, 29, // 71 - ‘G’
3, 31, 4, 31, // 72 - ‘H’
3, 17, 31, 17, // 73 - ‘I’
3, 8, 16, 15, // 74 - ‘J’
3, 31, 4, 27, // 75 - ‘K’
3, 31, 16, 16, // 76 - ‘L’
3, 31, 2, 31, // 77 - ‘M’
3, 31, 14, 31, // 78 - ‘N’
3, 14, 17, 14, // 79 - ‘O’
3, 31, 5, 2, // 80 - ‘P’
3, 14, 25, 30, // 81 - ‘Q’
3, 31, 5, 26, // 82 - ‘R’
3, 18, 21, 9, // 83 - ‘S’
3, 1, 31, 1, // 84 - ‘T’
3, 15, 16, 15, // 85 - ‘U’
3, 7, 24, 7, // 86 - ‘V’
3, 15, 28, 15, // 87 - ‘W’
3, 27, 4, 27, // 88 - ‘X’
3, 3, 28, 3, // 89 - ‘Y’
3, 25, 21, 19, // 90 - ‘Z’
2, 31, 17, // 91 - ‘[’
3, 2, 4, 8, // 92 - ‘’
2, 17, 31, // 93 - ‘]’
3, 2, 1, 2, // 94 - ‘^’
3, 16, 16, 16, // 95 - ’ ’
2, 1, 2, // 96 - ‘`’
3, 12, 18, 28, // 97 - ‘a’
3, 31, 18, 12, // 98 - ‘b’
3, 12, 18, 18, // 99 - ‘c’
3, 12, 18, 31, // 100 - ‘d’
3, 12, 26, 20, // 101 - ‘e’
3, 4, 31, 5, // 102 - ‘f’
3, 20, 26, 12, // 103 - ‘g’
3, 31, 2, 28, // 104 - ‘h’
1, 29, // 105 - ‘i’
2, 16, 13, // 106 - ‘j’
3, 31, 8, 20, // 107 - ‘k’
1, 31, // 108 - ‘l’
3, 30, 6, 30, // 109 - ‘m’
3, 30, 2, 28, // 110 - ‘n’
3, 12, 18, 12, // 111 - ‘o’
3, 30, 10, 4, // 112 - ‘p’
3, 4, 10, 30, // 113 - ‘q’
2, 30, 4, // 114 - ‘r’
3, 20, 30, 10, // 115 - ‘s’
3, 4, 30, 4, // 116 - ‘t’
3, 14, 16, 30, // 117 - ‘u’
3, 14, 16, 14, // 118 - ‘v’
3, 14, 24, 14, // 119 - ‘w’
3, 18, 12, 18, // 120 - ‘x’
3, 22, 24, 14, // 121 - ‘y’
3, 26, 30, 22, // 122 - ‘z’
3, 4, 27, 17, // 123 - ‘{’
1, 27, // 124 - ‘|’
3, 17, 27, 4, // 125 - ‘}’
3, 6, 2, 3, // 126 - ‘~’
3, 31, 31, 31, // 127 - ‘Full Block’
};