LCD Module Screen LCM 2004 20X4 HD44780 Blue backlight Double Sided SpiderPEI System Nylon er kendt for sin

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LCD Module Screen LCM 2004 20X4 HD44780 Blue backlight Double Sided SpiderPEI System Nylon er kendt for sinStandard HD44780 LCD with blue backlight, white letters Standard 16X2 character LCD module (backlight blue) 1602 with standard 16 pin connector, including: Pin 1: VSS is in power Pin 2: VDD 5V positive power supply connection Pin 3: V0 LCD contrast adjustment for the client, then the contrast is the weakest power, ground power the highest contrast, the contrast is too high will have a "ghosting", when used with a 10K potentiometer to adjust contrast