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  1. #include <time.h>
  2. #include <LiquidCrystal.h>
  3.  
  4. LiquidCrystal lcd(12, 11, 10, 9, 8, 7);
  5.  
  6. uint8_t dir = 1, col = 0, lin = 0;
  7. byte customChar[8] = {0};
  8. int8_t memOffset = 0;
  9.  
  10. void CreatePrintCustomChars(){
  11.    for(uint8_t j = 0; j < 8; j++){
  12.       for(uint8_t i = 0; i < 8; i++)
  13.          customChar[i] = rand() % 32;
  14.       lcd.createChar(memOffset++, customChar);
  15.       lcd.write(uint8_t(memOffset));
  16.    }
  17. }
  18.  
  19. void setup(){
  20.    srand(time(NULL));
  21.    Serial.begin(9600);
  22.  
  23.    lcd.begin(20, 4);
  24.    lcd.setCursor(lin, col);
  25. }
  26.  
  27. void loop(){
  28.  
  29.    for(uint8_t i = 0; i < 80; i++){
  30.       lcd.setCursor(lin, col);
  31.       CreatePrintCustomChars();
  32.       if(col == 19){
  33.          col = 0;
  34.          lin = (lin + 1) % 4;
  35.       }else
  36.          col++;
  37.  
  38. 		if(dir)
  39. 		   memOffset += 1;
  40. 		else
  41. 		   memOffset -= 1;
  42.  
  43.       if (memOffset < 0) {
  44.          dir ^= 1;
  45.          memOffset = 1;
  46.       }else if (memOffset > 7) {
  47.          dir ^= 1;
  48.          memOffset = 6;
  49.       }
  50.  
  51.       delay(100);
  52.   }
  53. }
  54.  
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
prog.c:2:27: fatal error: LiquidCrystal.h: No such file or directory
compilation terminated.
stdout
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Standard output is empty
https://ideone.com/oMrwtd
language:
C (gcc 8.3)
created:
7 years ago
visibility:
secret

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