NoticeUART SERIAL 16*2 CHARACTERS LCD
Contents
Overview
Character LCM screen is a common display device, we provide 16×2, 8×2, 20×4 with Yellow / Blue black light LCD. But these LCD need more than 6 pins for controlling and you need to know the control register and time series.
Specifications
| Resolution | 16X2 |
| Backlight color | Yellow, Blue |
| Communication Protocol | UART |
| Band Rate | 9600 |
| RoSH | Yes |
Recommended operating condition
| Power supply voltage | 5 VDC |
| Current consumption | 60mA（Blue） 70mA（Yellow） |
| Input Voltage VH | 2.7V (Min) 3.3V (Type) 3.6V(Max) |
| Input Voltage VL | 0.3V (Min) 0V (Type) 0.9V(Max) B71 |
| Operation Temperature | 20℃~60℃ |
Commands description
1. Command format
The format of all commands is CMD+[Parameter]+’;’, the [parameter] is option, and the ‘;’ is necessary.
2. Command list and parameter
1) Screen Clean
CMD : sc , Parameter : Null;
Example : sc; -----------------Screen clean. 2) Set backlight
CMD : sb, Parameter :1/0 [1: Set the backlight on; 0: Set the backlight off]
Example : sb1; ---------------Set the backlight on. sb0; ---------------Set the backlight off.
3) Set coordinate
CMD : sd, Parameter :X,Y [X: the column (X = [0,1]); Y: the row (Y = [0:15])]
Example : sd0,0; --------------Set the coordinate to column 0 and row 0. Sd1,15; ------------Set the coordinate to column 1 and row 15
4) Send string
CMD : ss, Parameter : Char String
Example: ss12345; -------------Send the char string to display in coordinate.
5) Set the cursor on/off
CMD su, Parameter: 0/1 [0: Set the cursor off, 1: Set the cursor on]
Example: su0; --------------Set the cursor off su1; --------------Set the cursor on
6) Set the cursor type
CMD sf, Parameter: 0/1 [0: Set the cursor blink off, 1: Set the cursor blink on]
Example: sf0; -------------- Set the cursor blink off sf1; -------------- Set the cursor blink on 7) Move the cursor
CMD sm, Parameter: 0/1 [0: Move the cursor left , 1: Move the cursor right]
Example: sm0; -------------- Move the cursor left sm1; -------------- Move the cursor right
3. Return message
O: OK, the mean is the command is correct and been done
E: Error, the mean is the command is error.
4. Command corresponding time
All the command corresponding time is < 50ms.
User notes
1. All the commands are lower case, and the end of command must be the char ‘;’.
