72 lines
1.5 KiB
C
72 lines
1.5 KiB
C
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#ifndef _LCD_H_
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#define _LCD_H_
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#include <LiquidCrystal_I2C.h>
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class LCDWrapper {
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private:
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LiquidCrystal_I2C *display;
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size_t cursor;
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uint8_t cols;
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uint8_t rows;
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public:
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LCDWrapper(uint8_t addr, uint8_t cols, uint8_t rows){
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rows = rows;
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cols = cols;
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*display = LiquidCrystal_I2C(addr, cols, rows, LCD_5x8DOTS);
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cursor = 0;
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}
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~LCDWrapper(){ display = NULL; }
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void begin(){
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display->begin();
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display->backlight();
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display->home();
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clear();
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}
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void move(const uint8_t line, const uint8_t c){ display->setCursor(line, c); }
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void clear(){ cursor = 0; display->clear(); }
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void printf(const char *fmt, ...){
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va_list va;
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va_start(va, fmt);
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char buffer[34] = {0};
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int size = sprintf(buffer, fmt, va);
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va_end(va);
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display->print(buffer);
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}
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void printfn(const uint8_t line, const char *fmt, ...){
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va_list va;
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va_start(va, fmt);
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char buffer[34] = {0};
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int size = sprintf(buffer, fmt, va);
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va_end(va);
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display->setCursor(0,line);
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display->print(buffer);
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}
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void printfn_overflow(const uint8_t line, const char *fmt, ...){
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va_list va;
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va_start(va, fmt);
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char buffer[34] = {0};
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int size = sprintf(buffer, fmt, va);
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va_end(va);
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display->setCursor(0,line);
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display->print(buffer);
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for( uint8_t offset = 0 ; size-offset > cols ; offset++ ){
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delay(50);
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display->setCursor(0,line);
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display->print(buffer+offset);
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}
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}
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};
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#endif
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