参数资料
型号: LK204-25-E
厂商: Matrix Orbital
文件页数: 25/47页
文件大小: 2507K
描述: LCD APHA/NUM DISPL 20X4 Y/G BK
产品变化通告: LK204-25 Series Release 03/Mar/2010
Backlight Change 02/Mar/2010
12C Displays Change 11/Oct/2011
标准包装: 1
系列: LK204-25
显示器类型: TN - 扭曲向列
显示模式: 可传导的
数字/字母数: 80
外形L x W x H: 98.00mm x 60.00mm x 27.50mm
可视范围: 76.00mm L x 25.20mm W
显示格式: 20 x 4
字符尺寸: 4.75mm H x 2.95mm W
字符格式: *
电源电压: 5.0V
接口: I²C,RS232,TTL
工作温度: -20°C ~ 70°C
31
6.
Keypad
6.1.
Auto Transmit
Key Presses On
Dec
Hex
ASCII
254 65
FE 41
A
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
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
&
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
1 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
Clears all key presses from the key
buffer.
6.5.
Set Debounce
Time
Dec
Hex
ASCII
254 85
FE 55
U
Time
Time
Time
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 a debounce time of
approximately 52ms.
Time
1 byte, debounce increment (debounce time = Time
* 6.554ms)
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相关代理商/技术参数
参数描述
LK204-25-FA 功能描述:LCD字符显示模块与配件 Black Background Amber Text RoHS:否 制造商:Lumex 显示模式:Transflective 字符计数 x 行:16 x 2 特点: 流体类型:STN 接口: 背景色: 工作温度范围:- 20 C to + 70 C 封装:Bulk
LK204-25-FB 功能描述:LCD字符显示模块与配件 Black Background Blue Text RoHS:否 制造商:Lumex 显示模式:Transflective 字符计数 x 行:16 x 2 特点: 流体类型:STN 接口: 背景色: 工作温度范围:- 20 C to + 70 C 封装:Bulk
LK204-25-FG 功能描述:LCD字符显示模块与配件 Black Background Green Text RoHS:否 制造商:Lumex 显示模式:Transflective 字符计数 x 行:16 x 2 特点: 流体类型:STN 接口: 背景色: 工作温度范围:- 20 C to + 70 C 封装:Bulk
LK204-25-FW 功能描述:LCD字符显示模块与配件 Black Background White Text RoHS:否 制造商:Lumex 显示模式:Transflective 字符计数 x 行:16 x 2 特点: 流体类型:STN 接口: 背景色: 工作温度范围:- 20 C to + 70 C 封装:Bulk
LK204-25-GW 功能描述:LCD字符显示模块与配件 White Background Blue Text RoHS:否 制造商:Lumex 显示模式:Transflective 字符计数 x 行:16 x 2 特点: 流体类型:STN 接口: 背景色: 工作温度范围:- 20 C to + 70 C 封装:Bulk