This dot matrix liquid crystal is widely used in various types of instruments and medical equipment. Industrial control, electricity. Technical parameters Display type STN 5.7” Display color Display color: White Background color: Blue Polarization mode Transmission/Negative viewing angle 6 o’clock Drive mode 1/240 DUTY 1/16 BIAS Backlight white highlight LED driver NT7701, NT7702 or compatible IC control Device RA8835P3N or compatible IC data bus 8-bit temperature characteristics Operating temperature: -20C ---- 70C Storage temperature: -30C ---- 80C Dot matrix format 320 x 240 dot size 0.33 x 0.33mm dot center distance 0.36 x 0.36mm Viewing area 122.0 x 92.0mm Effective display area 115.17 x 86.37mm Overall dimensions 166.75x109.0x10.6mm Max Net weight 164g JP1 Pin number Pin definition function 1 FLM Frame signal 2 CP1 Data input row latch signal 3 CP2 Data input clock signal 4 NC empty 5 DISP OFF display switch. L: off, H: on 6-9 D0-D3 LCD data bus 10 VDD power supply (5V or 3.3V power supply) 11 VSS power ground 12 VLCD is provided by an external LCD driver. Voltage (18V~26V) JP2 pin number name description 1 FLM frame signal. 3 CL2 clock signal. L: (off), H: (on) 5 VDD power supply. (5V) 6 VSS power ground 7 VEE external LCD drive power supply. 8 D0 data bus 9 D1 data bus 10 D2 data bus 11 D3 data bus 12 NC -- 13 NC -- 14 NC -- 15 NC -- 16 VSS power supply Ground. JP3 pin number name description 1 VSS power ground. 2 VCC power input (3.3V) 3 V0 LCD drive voltage adjustment terminal. 4 WR# 8080: #WR 6800: R/W 5 RD# 8080: #RD 6800: E 6 CS# Chip Select: RA8835 7 A0 RA8835 Address (Instruction/Data) 8 RST# Reset: RA8835 9 D0 Data Bus 10 D1 Data Bus 11 D2 Data Bus 12 D3 Data Bus 13 D4 Data Bus 14 D5 Data Bus 15 D6 Data Bus 16 D7 Data bus 17 LED backlight power supply positive (3.3V, LED-connected to module ground). 18 VEE built-in LCD drive power supply. (24V) 19 VLED LED backlight power input positive. (3.3V) 20 VLED- LED backlight power input negative.