LCD Keypad Shield with LCD1602

Arduino LCD1602 character LCD expansion board, PCB sinking gold process processing, full of materials, the motherboard adopts a brand new high-quality 2-line 16-character LCD, not only has a contrast adjustment knob, a backlight selection switch, but also 4 direction buttons and 1 selection button And-a reset button; this 1602 LCD expansion board simplifies the circuit in the true sense, just plug this board into the Arduino Duemilanove controller

Specifications:

• Module size: 20.5mmX41mm
  
• 1 Introduction to 602 character LCD
  
• 1602LCD main technical parameters:
  
• Display capacity: 16X2 characters
  
• Chip working voltage: 4.5- 5.5V
  
• Working current: 2.0mA (5.0V)
  
• Module working voltage: 5.0V
  
• Character size: 2.95X4.35(WX H)mm

Features:
The controller inside the 1602 LCD module has a total of 11 control commands, as shown in the table below: Serial number command RS R/W D7 D6 D5 D4 D3 D2 D1 D0

1. Clear screen 0000000001
   
2. The cursor returns to 000000001 *
   
3. Set input mode 00000001 I/DS
   
4. Display on/off control 0000001 DC B
   
5. Cursor or character shift 000001S/C R/L**
   
6. Set function 00001 DLNF**
   
7. Set character generation memory address 0001 character generation memory address
   
8. Set the data memory address to 001 to display the data memory address
   
9. Read the busy flag or address 01 BF counter address
   
10. Write data to CGRAM or DDRAM) 1 0 Contents of data to be written
    
11. Read the data content from CGRAM or DDRAM 1 1