PIC16F877A interface Nextion HMI sending Variable values to nextion display. Counter Demo.
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///////////////////////////////////////////////////// Hello guys,
This video is about sending variable values to the nextion touch screen using PIC16F877A microcontroller. This has huge applications specially in the field of sensors based systems or closed loop systems or monitoring systems or machine control using touch screens.
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MikroC code is as:
int count1;
int count2;
char count11[10];
char count22[10];
void main() {
UART1_Init(9600);
Delay_ms(100);
count1=0; /// increment
count2=100; /// decrement
while(1)
{
do
{
count1 = count1+1;
Delay_ms(10);
count2 = count2-1;
Delay_ms(10);
IntToStr(count1, count11);
Delay_ms(10);
IntToStr(count2, count22);
Delay_ms(10);
// for increment
UART1_Write_Text("t1.txt=");
Delay_ms(10);
UART1_Write('"');
UART1_Write_Text(count11);
UART1_Write('"');
Delay_ms(10);
UART1_Write_Text("ÿÿÿ");
Delay_ms(10);
// decrement
UART1_Write_Text("t2.txt=");
Delay_ms(10);
UART1_Write('"');
UART1_Write_Text(count22);
UART1_Write('"');
Delay_ms(10);
UART1_Write_Text("ÿÿÿ");
Delay_ms(10);
}while( count1 Write down less then mathematical sign here 100 );
count1=0; /// increment
count2=100; /// decrement
}
}