参数资料
型号: LK202-25-E
厂商: Matrix Orbital
文件页数: 8/42页
文件大小: 2198K
描述: LCD APHA/NUM DISPL 20X2 Y/G BK
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
12
Keypad Header
Figure 16: Keypad Header
Table 10: Keypad Pinout
Pin
Function
Pin
Function
1
Gnd
7
Column 1
2
Row 1
8
Column 2
3
Row 2
9
Column 3
4
Row 3
10
Column 4
5
Row 4
11
Column 5
6
Row 5
12
Gnd/Vcc*
To facilitate user input, the LK202-25/VK202-25
provides a Keypad Interface Connector which allows a
matrix style keypad of up to twenty-five keys
to be directly connected to the display module.
Key
presses are generated when a short is detected between a row and a column.
When a key
press is
generated, a character
specific to that key press
is automatically sent on the Tx communication line.
If
the display module is running in I2C mode, the “Auto Transmit Keypress” function may be turned off
to
allow the key presses to remain in the buffer so that they may be polled.
The character that is
associated with each key press may also be altered using the “Assign Key Codes” command.
The straight
twelve pin header of the Keypad Interface Connector will interface to a variety of different devices
including the
Matrix Orbital KPP4x4 keypad.
*Note:
The Ground / +5V pin is toggled by the jumper to the right of the keypad connector. Jump pads 1 & 2 for
+5V or 2 & 3 for GND.
相关PDF资料
PDF描述
LK204-25-R LCD ALPHA/NUM DISPL 20X4 BK/RED
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LK202-25-FA-V-E 制造商:Matrix Orbital 功能描述:20x2/keyAmbTxt,BlkBG Wide Volt, Ext Temp
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