Hallo folgender Code:
// IMPORTANT: Adafruit_TFTLCD LIBRARY MUST BE SPECIFICALLY
// CONFIGURED FOR EITHER THE TFT SHIELD OR THE BREAKOUT BOARD.
// SEE RELEVANT COMMENTS IN Adafruit_TFTLCD.h FOR SETUP.
#include <Adafruit_GFX.h> // Core graphics library
#include <Adafruit_TFTLCD.h> // Hardware-specific library
#include <OneWire.h>
#include <DallasTemperature.h>
#define ONE_WIRE_BUS A5 /* Digitalport Pin 2 definieren */
// The control pins for the LCD can be assigned to any digital or
// analog pins...but we'll use the analog pins as this allows us to
// double up the pins with the touch screen (see the TFT paint example).
#define LCD_CS A3 // Chip Select goes to Analog 3
#define LCD_CD A2 // Command/Data goes to Analog 2
#define LCD_WR A1 // LCD Write goes to Analog 1
#define LCD_RD A0 // LCD Read goes to Analog 0
#define LCD_RESET A4 // Can alternately just connect to Arduino's reset pin
// When using the BREAKOUT BOARD only, use these 8 data lines to the LCD:
// For the Arduino Uno, Duemilanove, Diecimila, etc.:
// D0 connects to digital pin 8 (Notice these are
// D1 connects to digital pin 9 NOT in order!)
// D2 connects to digital pin 2
// D3 connects to digital pin 3
// D4 connects to digital pin 4
// D5 connects to digital pin 5
// D6 connects to digital pin 6
// D7 connects to digital pin 7
// For the Arduino Mega, use digital pins 22 through 29
// (on the 2-row header at the end of the board).
// Assign human-readable names to some common 16-bit color values:
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
Adafruit_TFTLCD tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, LCD_RESET);
// If using the shield, all control and data lines are fixed, and
// a simpler declaration can optionally be used:
// Adafruit_TFTLCD tft;
OneWire ourWire(ONE_WIRE_BUS); /* Ini oneWire instance */
DallasTemperature sensors(&ourWire);/* Dallas Temperature Library für Nutzung der oneWire Library vorbereiten */
void setup(void) {
Serial.begin(9600);
Serial.println(F("TFT LCD test"));
#ifdef USE_ADAFRUIT_SHIELD_PINOUT
Serial.println(F("Using Adafruit 2.8\" TFT Arduino Shield Pinout"));
#else
Serial.println(F("Using Adafruit 2.8\" TFT Breakout Board Pinout"));
#endif
Serial.print("TFT size is "); Serial.print(tft.width()); Serial.print("x"); Serial.println(tft.height());
tft.reset();
uint16_t identifier = tft.readID();
identifier = 0x9341;
if(identifier == 0x9325) {
Serial.println(F("Found ILI9325 LCD driver"));
} else if(identifier == 0x9328) {
Serial.println(F("Found ILI9328 LCD driver"));
} else if(identifier == 0x7575) {
Serial.println(F("Found HX8347G LCD driver"));
} else if(identifier == 0x9341) {
Serial.println(F("Found ILI9341 LCD driver"));
} else if(identifier == 0x8357) {
Serial.println(F("Found HX8357D LCD driver"));
} else {
Serial.print(F("Unknown LCD driver chip: "));
Serial.println(identifier, HEX);
Serial.println(F("If using the Adafruit 2.8\" TFT Arduino shield, the line:"));
Serial.println(F(" #define USE_ADAFRUIT_SHIELD_PINOUT"));
Serial.println(F("should appear in the library header (Adafruit_TFT.h)."));
Serial.println(F("If using the breakout board, it should NOT be #defined!"));
Serial.println(F("Also if using the breakout, double-check that all wiring"));
Serial.println(F("matches the tutorial."));
return;
sensors.begin();/* Inizialisieren der Dallas Temperature library */
adresseAusgeben(); /* Adresse der Devices ausgeben */
Serial.print("Starte Temperatur abfragen ...");
sensors.setResolution(TEMP_12_BIT); // Genauigkeit auf 12-Bit setzen
}
//tft.begin(0x9325);
tft.begin(identifier);
}
int first = 0;
void loop(void) {
if (first == 0)
{
tft.fillScreen(BLACK);
first = 1;
}
sensors.requestTemperatures(); // Temp abfragen
tft.setCursor(10, 10);
tft.setRotation(1);
tft.setTextSize(3);
tft.setTextColor(WHITE);
tft.setCursor(10, 10);
tft.fillScreen(BLACK);
tft.print("Temp.: ");
tft.print(sensors.getTempCByIndex(0));
tft.print(char(247));
tft.print("C");
delay(5000);
//for(uint8_t rotation=0; rotation<4; rotation++) {
// tft.setRotation(rotation);
// testText();
//delay(200);
//}
}
void adresseAusgeben(void) {
byte i;
byte present = 0;
byte data[12];
byte addr[8];
Serial.print("Suche 1-Wire-Devices...\n\r");// "\n\r" is NewLine
while (ourWire.search(addr)) {
Serial.print("\n\r\n\r1-Wire-Device gefunden mit Adresse:\n\r");
for ( i = 0; i < 8; i++) {
Serial.print("0x");
if (addr[i] < 16) {
Serial.print('0');
}
Serial.print(addr[i], HEX);
if (i < 7) {
Serial.print(", ");
}
}
if ( OneWire::crc8( addr, 7) != addr[7]) {
Serial.print("CRC is not valid!\n\r");
return;
}
}
Serial.println();
ourWire.reset_search();
return;
}
/*unsigned long testText() {
tft.fillScreen(BLACK);
unsigned long start = micros();
tft.setCursor(0, 0);
tft.setTextColor(WHITE); tft.setTextSize(1);
tft.println("Hello World!");
tft.setTextColor(YELLOW); tft.setTextSize(2);
tft.println(1234.56);
tft.setTextColor(RED); tft.setTextSize(3);
tft.println(0xDEADBEEF, HEX);
tft.println();
tft.setTextColor(GREEN);
tft.setTextSize(5);
tft.println("Groop");
tft.setTextSize(2);
tft.println("I implore thee,");
tft.setTextSize(1);
tft.println("my foonting turlingdromes.");
tft.println("And hooptiously drangle me");
tft.println("with crinkly bindlewurdles,");
tft.println("Or I will rend thee");
tft.println("in the gobberwarts");
tft.println("with my blurglecruncheon,");
tft.println("see if I don't!");
return micros() - start;
}
*/
klappt prinzipiell auch einwandfrei nur das beim aktualisieren am Display immer ein unschönes flackern aufritt. Das tft.fillScreen(BLACK); weglassen ist auch keine Lösung, da er dann alle Zahlen ineinander schreibt und nach kurzer Zeit nur noch ein schwarzer Glotz zu sehen ist. Jemand eine Lösung dafür?
mfg
Chris