product description:
Specification: Display: 2-lines x 16-characters
Backlight: Blue with white character color
LCD controller: HD44780
Pin Definition: VCC, GND,SDL and SCA
Contrast Adjust: Potentiometer
Backlight Adjust: Jumper
Default Address: 0x27 for PCF8574T chip; 0x3F for PCF8574AT chip
Working Voltage: 5V
100% Satisfaction Guarantee 12-Month Warranty; No satisfied ,Free reason for return;
We could also resent you new one due to quality problem.
Package: 2 pack blue 16x2 1602 lcd display + I2C serial interface
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