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This question may have been answered in a previous thread, but that thread is no longer accessible.
I'm running a CFAH2004AP-TFH-EW 20x4 character LCD and the backlight LED seems dim. I've tried using resistors of 330 Ohms and 220 Ohms between Vcc (5v) and pin 15 on the LCD, the Anode. Are these values too high? Would I risk damage to the LED if I tried lower value resistors?
Second question. The sample Arduino code available for this LCD contains a reference to LCD_RESET and SD_CS. Neither of these lines appear in the datasheet for the LCD. What purpose do they serve in the code?
Thanks
I'm running a CFAH2004AP-TFH-EW 20x4 character LCD and the backlight LED seems dim. I've tried using resistors of 330 Ohms and 220 Ohms between Vcc (5v) and pin 15 on the LCD, the Anode. Are these values too high? Would I risk damage to the LED if I tried lower value resistors?
Second question. The sample Arduino code available for this LCD contains a reference to LCD_RESET and SD_CS. Neither of these lines appear in the datasheet for the LCD. What purpose do they serve in the code?
Thanks
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