Display characters mixed

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felixlu28
 
Posts: 13
Joined: Sat Sep 07, 2013 6:54 pm

Display characters mixed

Post by felixlu28 »

Hello all, please I need your help. I have a Mega2560 with 2.4 MCU friend on
#include <Adafruit_GFX.h>

In the static texts is all running without problems (if I have used whole display clear screen) , but if I need dynamic values, like a temperature, or PCF8563 values indicate on it, automatically changed values from Seconds (and next in minutes and hours) are mixed together (overlapping).
What about it ? What can I do for it ?

Thanks for your each answers. Bobo
Last edited by felixlu28 on Sun Aug 30, 2015 2:30 pm, edited 1 time in total.

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Franklin97355
 
Posts: 23910
Joined: Mon Apr 21, 2008 2:33 pm

Re: Display characters mixing

Post by Franklin97355 »

Could you post your code (using the </> button for posting code) and the connections you have in your circuit?

felixlu28
 
Posts: 13
Joined: Sat Sep 07, 2013 6:54 pm

Re: Display characters mixing

Post by felixlu28 »

Hi Franklin, here you have a code :

Code: Select all

 
#include <Adafruit_GFX.h>    // Core graphics library
#include <Adafruit_TFTLCD.h> // Hardware-specific library
#include <TouchScreen.h>
#include <SD.h>
#include <SPI.h>
#include <Rtc_Pcf8563.h>
#include <Wire.h>

#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
#define SD_CS 53 // Card select for shield use


#define YP A1  // must be an analog pin, use "An" notation!
#define XM A2  // must be an analog pin, use "An" notation!
#define YM 7   // can be a digital pin
#define XP 6   // can be a digital pin

#define	BLACK   0x0000
#define	BLUE    0x001F
#define	RED     0xF800
#define	GREEN   0x07E0
#define CYAN    0x07FF
#define MAGENTA 0xF81F
#define YELLOW  0xFFE0
#define WHITE   0xFFFF
#define GREY    0x7BEF

#define TS_MINX 150
#define TS_MINY 120
#define TS_MAXX 920
#define TS_MAXY 940

Adafruit_TFTLCD tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, LCD_RESET);

TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);
uint8_t spi_save;

Rtc_Pcf8563 rtc;

void setup() {
  Serial.begin(9600);
  uint16_t identifier = tft.readID();
  identifier = 0x9341;
  tft.begin(identifier);
  tft.setRotation(3);
  
tft.fillScreen(BLACK);
tft.drawRect(2, 2, 310, 230, WHITE);  
  tft.setCursor(35, 10);
  tft.setTextColor(YELLOW);  tft.setTextSize(2);
  tft.println("ClimaTech air system");
 tft.drawLine(2, 35, 310, 35, WHITE); 
tft.setCursor(15, 75);
  tft.println("Act.temp :");
  tft.setCursor(250, 65);
  tft.println(".");
  tft.setCursor(260, 75);
  tft.println("C");
  tft.setCursor(15, 95);
  tft.println("Set.temp :");
  tft.setCursor(190, 95);
  tft.println("");
  tft.setCursor(250, 85);
  tft.println(".");
tft.setCursor(260, 95);
  tft.println("C");
    tft.setCursor(15, 115);
  tft.println("Out.temp :");
  tft.setCursor(250, 105);
  tft.println(".");
tft.setCursor(260, 115);
  tft.println("C");
  tft.setCursor(15, 135);
  tft.println("Out.humidity :");
tft.setCursor(260, 135);
  tft.println("%"); 
}// setup

void loop() {
  
  
   tft.setCursor(15, 45);
  tft.setTextColor(WHITE); tft.setTextSize(2);
  tft.println(rtc.formatTime(RTCC_TIME_HMS));
  tft.setCursor(180,45);
   tft.println(rtc.formatDate(RTCC_DATE_WORLD));

  
}//loop
This is the basic code for testing. Some of parts are included in full version but this code running same as full.
Also I have attached a files, I am using it in this project.

Bobo
Attachments
AdaTFTLCD.zip
(141.13 KiB) Downloaded 18 times
Adafruit-GFX-Library-master7_2015.zip
(10.82 KiB) Downloaded 14 times

felixlu28
 
Posts: 13
Joined: Sat Sep 07, 2013 6:54 pm

Re: Display characters mixing

Post by felixlu28 »

About connections : Is connected with Mega2560 directly (shield) as been described on Adafruit page like other producer products.

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adafruit_support_mike
 
Posts: 67446
Joined: Thu Feb 11, 2010 2:51 pm

Re: Display characters mixed

Post by adafruit_support_mike »

Try setting a background color for the text:

Code: Select all

  tft.setTextColor( YELLOW, BLACK );  
That will erase any old characters when it draws new ones.

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