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public c v1 · immutable int last = 0x0; while(true) { int curr = (~(PINB)) & 16; sprintf(x, "%i %i", curr, last); LCD_puts(x, 1); _delay_ms(50000); last = curr; } int last = 0x0; while(true) { int curr = (~(PINB)) & 16; sprintf(x, "%i %i", curr, last); LCD_puts(x, 1); _delay_ms(50000); last = curr; }