LCM1602 Specification: Out Dimension: 122.0*44.0 Viewing Area: 95.2*20.0 Dots Size: 1.00*1.15 Character Size: 5.20*9.55 Feature: 1. 2-line x16 characters display; 5x8 dots with cursor 2. Built-in controllerSPLC780D) 3. +5V power supply(Also available for +3.3V) 4. 1/16 duty cycle;1/5bias; 5. TN, HTN, STN or FSTN mode6. BKL to be driven by pin1,pin2,or pin15,pin16,or A,K