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‎SD_Card_Files.zip

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‎TouchScreen.cpp

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/*
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* TouchScreen.cpp
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*
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* Created on: 29.03.2020
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* Author: rom3
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*/
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#include "Arduino.h"
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#include "TouchScreen.h"
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#define NUMSAMPLES 3 //.kbv
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#if defined(__STM32F1__) || defined(ESP32) //Maple core
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#define ADC_ADJUST >>2
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#else
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#define ADC_ADJUST
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#endif
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TSPoint_kbv::TSPoint_kbv(void) {
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x = y = z = 0;
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}
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TSPoint_kbv::TSPoint_kbv(int16_t x0, int16_t y0, int16_t z0) {
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x = x0;
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y = y0;
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z = z0;
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}
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bool TSPoint_kbv::operator==(TSPoint_kbv p1) {
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return ((p1.x == x) && (p1.y == y) && (p1.z == z));
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}
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bool TSPoint_kbv::operator!=(TSPoint_kbv p1) {
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return ((p1.x != x) || (p1.y != y) || (p1.z != z));
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}
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static void insert_sort(int array[], uint8_t size) {
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uint8_t j;
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int save;
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for (int i = 1; i < size; i++) {
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save = array[i];
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for (j = i; j >= 1 && save < array[j - 1]; j--)
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array[j] = array[j - 1];
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array[j] = save;
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}
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}
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TSPoint_kbv TouchScreen_kbv::getPoint(void) {
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int x, y, z;
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int samples[NUMSAMPLES];
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uint8_t i;
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pinMode(_yp, INPUT);
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pinMode(_ym, INPUT);
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digitalWrite(_yp, LOW);
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digitalWrite(_ym, LOW);
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pinMode(_xp, OUTPUT);
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pinMode(_xm, OUTPUT);
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digitalWrite(_xp, HIGH);
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digitalWrite(_xm, LOW);
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for (i = 0; i < NUMSAMPLES; i++) {
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samples[i] = analogRead(_yp) ADC_ADJUST;
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}
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insert_sort(samples, NUMSAMPLES);
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x = (1023 - samples[NUMSAMPLES / 2]); //choose median
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pinMode(_xp, INPUT);
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pinMode(_xm, INPUT);
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digitalWrite(_xp, LOW);
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digitalWrite(_xm, LOW); //.kbv for Due
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pinMode(_yp, OUTPUT);
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digitalWrite(_yp, HIGH);
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pinMode(_ym, OUTPUT);
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digitalWrite(_ym, LOW); //.kbv for Due
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for (i = 0; i < NUMSAMPLES; i++) {
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samples[i] = analogRead(_xm) ADC_ADJUST;
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}
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insert_sort(samples, NUMSAMPLES);
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y = (1023 - samples[NUMSAMPLES / 2]);
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// Set X+ to ground
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pinMode(_xp, OUTPUT);
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digitalWrite(_xp, LOW);
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// Set Y- to VCC
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pinMode(_ym, OUTPUT); //.kbv
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digitalWrite(_ym, HIGH);
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// Hi-Z X- and Y+
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digitalWrite(_xm, LOW); //.kbv
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pinMode(_xm, INPUT); //.kbv
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digitalWrite(_yp, LOW);
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pinMode(_yp, INPUT);
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int z1 = analogRead(_xm) ADC_ADJUST;
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int z2 = analogRead(_yp) ADC_ADJUST;
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z = (1023 - (z2 - z1));
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pinMode(_yp, OUTPUT); //restore shared pins
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pinMode(_xm, OUTPUT);
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digitalWrite(_yp, HIGH); //because TFT control pins
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digitalWrite(_xm, HIGH);
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return TSPoint_kbv(x, y, z); //XM, YP still in ANALOG mode
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}
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TouchScreen_kbv::TouchScreen_kbv(uint8_t xp, uint8_t yp, uint8_t xm, uint8_t ym) {
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_yp = yp;
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_xm = xm;
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_ym = ym;
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_xp = xp;
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_rxplate = 0;
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pressureThreshhold = 10;
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}
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TouchScreen_kbv::TouchScreen_kbv(uint8_t xp, uint8_t yp, uint8_t xm, uint8_t ym,
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uint16_t rxplate) {
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_yp = yp;
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_xm = xm;
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_ym = ym;
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_xp = xp;
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_rxplate = rxplate;
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pressureThreshhold = 10;
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}
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int TouchScreen_kbv::readTouchX(void) {
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pinMode(_yp, INPUT);
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pinMode(_ym, INPUT);
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digitalWrite(_yp, LOW);
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digitalWrite(_ym, LOW);
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pinMode(_xp, OUTPUT);
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digitalWrite(_xp, HIGH);
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pinMode(_xm, OUTPUT);
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digitalWrite(_xm, LOW);
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return (1023 - (analogRead(_yp)) ADC_ADJUST);
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}
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int TouchScreen_kbv::readTouchY(void) {
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pinMode(_xp, INPUT);
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pinMode(_xm, INPUT);
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digitalWrite(_xp, LOW);
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digitalWrite(_xm, LOW);
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pinMode(_yp, OUTPUT);
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digitalWrite(_yp, HIGH);
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pinMode(_ym, OUTPUT);
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digitalWrite(_ym, LOW);
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return (1023 - (analogRead(_xm)) ADC_ADJUST);
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}
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uint16_t TouchScreen_kbv::pressure(void) {
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// Set X+ to ground
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pinMode(_xp, OUTPUT);
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digitalWrite(_xp, LOW);
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// Set Y- to VCC
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pinMode(_ym, OUTPUT);
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digitalWrite(_ym, HIGH);
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// Hi-Z X- and Y+
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digitalWrite(_xm, LOW);
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pinMode(_xm, INPUT);
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digitalWrite(_yp, LOW);
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pinMode(_yp, INPUT);
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int z1 = analogRead(_xm) ADC_ADJUST;
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int z2 = analogRead(_yp) ADC_ADJUST;
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return (1023 - (z2 - z1));
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}

‎TouchScreen.h

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/*
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* TouchScreen.h
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*
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* Created on: 29.03.2020
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* Author: rom3
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*/
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#ifndef TOUCHSCREEN_H_
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#define TOUCHSCREEN_H_
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#include <stdint.h>
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class TSPoint_kbv {
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public:
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TSPoint_kbv(void);
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TSPoint_kbv(int16_t x, int16_t y, int16_t z);
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bool operator==(TSPoint_kbv);
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bool operator!=(TSPoint_kbv);
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int16_t x, y, z;
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};
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class TouchScreen_kbv {
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public:
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TouchScreen_kbv(uint8_t xp, uint8_t yp, uint8_t xm, uint8_t ym);
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TouchScreen_kbv(uint8_t xp, uint8_t yp, uint8_t xm, uint8_t ym, uint16_t rx);
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uint16_t pressure(void);
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int readTouchY();
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int readTouchX();
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TSPoint_kbv getPoint();
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int16_t pressureThreshhold;
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private:
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uint8_t _yp, _ym, _xm, _xp;
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uint16_t _rxplate;
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};
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#endif

‎midi_player.ino

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////////////////////////////////////////////
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// 3.5" TOUCH SCREEN GM Midi file player //
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// //
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// rom3 11.2020 //
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// //
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// //
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////////////////////////////////////////////
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#include "Arduino.h"
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#include "TouchScreen.h"
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// include SPI, MP3 and SD libraries
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#include <SPI.h>
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#include <Adafruit_VS1053.h>
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#include <SD.h>
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Adafruit_VS1053_FilePlayer musicPlayer = Adafruit_VS1053_FilePlayer(52, 46, 48, 50, 10);
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// *** display
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#include <Adafruit_GFX.h>
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#include <MCUFRIEND_kbv.h>
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MCUFRIEND_kbv tft;
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Adafruit_GFX_Button mybutton = Adafruit_GFX_Button();
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#define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
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// The files in the tune list should be located on the SD card
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// or an error will occur opening the file and the next in the
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// list will be opened (skips errors).
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char *tuneList[] =
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{
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"LOOPDEMO.MID", // simplest and shortest file
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"ELISE.MID",
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"TWINKLE.MID",
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"GANGNAM.MID",
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"FUGUEGM.MID",
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"POPCORN.MID",
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"AIR.MID",
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"PRDANCER.MID",
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"MINUET.MID",
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"FIRERAIN.MID",
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"MOZART.MID",
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"FERNANDO.MID",
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"SONATAC.MID",
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"SKYFALL.MID",
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"XMAS.MID",
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"GBROWN.MID",
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"PROWLER.MID",
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"IPANEMA.MID",
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"JZBUMBLE.MID",
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"SYMPH9.MID",
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"CHATCHOO.MID",
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"STRIPPER.MID"
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};
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void setup() {
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Serial.begin(9600);
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tft.begin(tft.readID());
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tft.setRotation(1);
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tft.setTextColor(TFT_WHITE, TFT_BLUE);
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tft.fillScreen(TFT_BLUE);
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// initialise the music player
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musicPlayer.begin();
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musicPlayer.sciWrite(VS1053_REG_WRAMADDR, VS1053_GPIO_DDR);
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musicPlayer.sciWrite(VS1053_REG_WRAM, 0x0003);
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musicPlayer.GPIO_digitalWrite(0x0000);
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musicPlayer.softReset();
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SD.begin(10, 11, 12, 13);
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// Set volume for left, right channels. lower numbers == louder volume!
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musicPlayer.setVolume(10, 10);
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musicPlayer.useInterrupt(VS1053_FILEPLAYER_PIN_INT);
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}
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void loop() {
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for (uint8_t i = 0; i < ARRAY_SIZE(tuneList); i++)
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{
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Serial.println(tuneList[i]);
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musicPlayer.startPlayingFile(tuneList[i]);
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while (musicPlayer.playingMusic) {
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}
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}
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}

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