参数资料
型号: LK202-25-GW-E
厂商: Matrix Orbital
文件页数: 19/42页
文件大小: 2198K
描述: LCD APHA/NUM DISPL 20X2 WHT BLUE
标准包装: 1
显示模式: 可传导的
数字/字母数: 40
外形L x W x H: 116.00mm x 37.00mm x 25.73mm
可视范围: 82.20mm L x 18.20mm W
显示格式: 20 x 2
字符尺寸: 5.55mm H x 3.20mm W
字符格式: 5 x 7 点
电源电压: 5VDC
点尺寸: 0.60mm W x 0.65mm H
接口: I²C,RS232,TTL
工作温度: 0°C ~ 50°C
22
6.6
Keypad
6.1
Auto Transmit
Key Presses On
Dec
Hex
ASCII
254 65
FE 41
A
v5.6
Key presses are automatically sent to the host when received by the display. Default is Auto Transmit on.
6.2
Auto Transmit
Key Presses Off
Dec
Hex
ASCII
254 79
FE 4F
O
v5.6
Key presses are held in the 10 key buffer
to be polled by the host using the Poll Key Press command. Use this
mode for I2C transactions. Default is Auto Transmit on.
6.3
Poll Key
Press
Dec
Hex
ASCII
254 38
FE 26
&
v5.6
Reads the last unread key press from the 10 key display buffer. If another key is stored in the buffer the MSB will
be 1, the MSB will be 0 when the last key press is read. If there are no stored key presses a value of 0 will be
returned. Auto transmit key presses must be turned off for this command to be successful.
Response
Byte
Value of key pressed (MSb determines additional keys to be read).
6.4
Clear Key
Buffer
Dec
Hex
ASCII
254 69
FE 45
E
v5.6
Clears all key presses from the key buffer.
6.5
Set Debounce
Time
Dec
Hex
ASCII
254 85
FE 55
U
Time
Time
Time
v5.6
Sets the time between a key press and a key read by the display. Most switches will bounce when pressed; the
debounce time allows the switch to settle for an accurate read. Default is 8 representing approximately 52ms.
Time
Byte
Debounce
increment (debounce time = Time
* 6.554ms).
6.6
Set Auto
Repeat Mode
Dec
Hex
ASCII
254 126
FE 7E
DEL
Mode
Mode
Mode
v5.6
Sets key press repeat mode to typematic or hold. In typematic
mode if a key press is held, the key value is
transmitted immediately, then 5 times a second after a 1 second delay. In hold mode, the key down value is
transmitted once when pressed, and then the key up value is sent when the key is released. Default is typematic.
Mode
Byte
1 for hold mode or 0 for typematic.
相关PDF资料
PDF描述
LK202-25-E LCD APHA/NUM DISPL 20X2 Y/G BK
LK204-25-R LCD ALPHA/NUM DISPL 20X4 BK/RED
LK204-25-GW LCD ALPHA/NUM DISPL 20X4 COL/BLU
LK204-25-WB LCD ALPHA/NUM DISPL 20X4 BLU/WHT
LK204-25-IY LCD DISPLAY 20X4 ALPHA NUM BK/YW
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