Thanks.
Firstly, my physical connection has not changed (referring to the nano and GC9A01 connection lines)
After I uploaded the following code, GC9A01 displayed normal, showing an analog clock pattern.
Similarly, I uploaded Adaafruit_ The "graphicstest" example program for GC9A01A has no display and the screen display is black.
My NANO and GC9A01 connections have always been in the same order as the image in the attachment
Unfortunately, I haven't been able to find Adaafruit yet_ GC9A01 has its GPIO and SPI settings,
As described in the video, I will include the code TFT within the sample program_ Change DC 9 to DC 7, keep everything else the same as the video
#include <GFX_Thaana.h>
#include <TFT.h>
#include <TFT_eSPI.h>
#include "fonts.h"
#include "time.h"
#include "RTClib.h"
RTC_DS3231 rtc;
TFT_eSPI tft = TFT_eSPI();
TFT_eSprite img = TFT_eSprite(&tft);
#define color1 TFT_WHITE
#define color2 0x8410
#define color3 0x5ACB
#define color4 0x15B3
#define color5 0x00A3
volatile int counter = 0;
float VALUE;
float lastValue=0;
double rad=0.01745;
float x[360];
float y[360];
float px[360];
float py[360];
float lx[360];
float ly[360];
int r=104;
int sx=120;
int sy=120;
String cc[12]={"45","40","35","30","25","20","15","10","05","0","55","50"};
String days[]={"SUNDAY", "MONDAY", "TUESDAY", "WEDNESDAY", "THURSDAY", "FRIDAY", "SATURDAY"};
int start[12];
int startP[60];
const int pwmFreq = 5000;
const int pwmResolution = 8;
const int pwmLedChannelTFT = 0;
int angle=0;
bool onOff=0;
bool debounce=0;
String h,m,s,d1,d2,m1,m2;
void setup() {
if (! rtc.begin()) {
Serial.println("Couldn't find RTC");
}
pinMode(2,OUTPUT);
pinMode(0,INPUT_PULLUP);
pinMode(35,INPUT_PULLUP);
pinMode(13,INPUT_PULLUP);
digitalWrite(2,0);
ledcSetup(pwmLedChannelTFT, pwmFreq, pwmResolution);
ledcAttachPin(5, pwmLedChannelTFT);
ledcWrite(pwmLedChannelTFT, 200);
tft.init();
tft.setSwapBytes(true);
tft.fillScreen(TFT_BLACK);
img.setSwapBytes(true);
img.createSprite(240, 240);
img.setTextDatum(4);
int b=0;
int b2=0;
for(int i=0;i<360;i++)
{
x[i]=(r*cos(rad*i))+sx;
y[i]=(r*sin(rad*i))+sy;
px[i]=((r-16)*cos(rad*i))+sx;
py[i]=((r-16)*sin(rad*i))+sy;
lx[i]=((r-26)*cos(rad*i))+sx;
ly[i]=((r-26)*sin(rad*i))+sy;
if(i%30==0){
start[b]=i;
b++;
}
if(i%6==0){
startP[b2]=i;
b2++;
}
}
}
int lastAngle=0;
float circle=100;
bool dir=0;
int rAngle=359;
void loop() {
rAngle=rAngle-2;
DateTime now = rtc.now();
angle=now.second()*6;
s=String(now.second());
m=String(now.minute());
h=String(now.hour());
if(m.toInt()<10)
m="0"+m;
if(h.toInt()<10)
h="0"+h;
if(s.toInt()<10)
s="0"+s;
if(now.day()>10)
{
d1=now.day()/10;
d2=now.day()%10;
}
else
{
d1="0";
d2=String(now.day());
}
if(now.month()>10)
{
m1=now.month()/10;
m2=now.month()%10;
}
else
{
m1="0";
m2=String(now.month());
}
if(angle>=360)
angle=0;
if(rAngle<=0)
rAngle=359;
if(dir==0)
circle=circle+0.5;
else
circle=circle-0.5;
if(circle>140)
dir=!dir;
if(circle<100)
dir=!dir;
if(angle>-1)
{
lastAngle=angle;
VALUE=((angle-270)/3.60)*-1;
if(VALUE<0)
VALUE=VALUE+100;
img.fillSprite(TFT_BLACK);
img.fillCircle(sx,sy,124,color5);
img.setTextColor(TFT_WHITE,color5);
img.drawString(days[now.dayOfTheWeek()],circle,120,2);
for(int i=0;i<12;i++)
if(start[i]+angle<360){
img.drawString(cc[i],x[start[i]+angle],y[start[i]+angle],2);
img.drawLine(px[start[i]+angle],py[start[i]+angle],lx[start[i]+angle],ly[start[i]+angle],color1);
}
else
{
img.drawString(cc[i],x[(start[i]+angle)-360],y[(start[i]+angle)-360],2);
img.drawLine(px[(start[i]+angle)-360],py[(start[i]+angle)-360],lx[(start[i]+angle)-360],ly[(start[i]+angle)-360],color1);
}
img.setFreeFont(&DSEG7_Modern_Bold_20);
img.drawString(s,sx,sy-36);
img.setFreeFont(&DSEG7_Classic_Regular_28);
img.drawString(h+":"+m,sx,sy+28);
img.setTextFont(0);
img.fillRect(70,86,12,20,color3);
img.fillRect(84,86,12,20,color3);
img.fillRect(150,86,12,20,color3);
img.fillRect(164,86,12,20,color3);
img.setTextColor(0x35D7,TFT_BLACK);
img.drawString("MONTH",84,78);
img.drawString("DAY",162,78);
img.setTextColor(TFT_ORANGE,TFT_BLACK);
img.drawString("VOLOS PROJECTS",120,174);
img.drawString("***",120,104);
img.setTextColor(TFT_WHITE,color3);
img.drawString(m1,77,96,2);
img.drawString(m2,91,96,2);
img.drawString(d1,157,96,2);
img.drawString(d2,171,96,2);
for(int i=0;i<60;i++)
if(startP[i]+angle<360)
img.fillCircle(px[startP[i]+angle],py[startP[i]+angle],1,color1);
else
img.fillCircle(px[(startP[i]+angle)-360],py[(startP[i]+angle)-360],1,color1);
img.fillTriangle(sx-1,sy-70,sx-5,sy-56,sx+4,sy-56,TFT_ORANGE);
img.fillCircle(px[rAngle],py[rAngle],6,TFT_RED);
img.pushSprite(0, 0);
}
}