Difference between revisions of "BakeBit - Button/zh"
From FriendlyELEC WiKi
(→硬件连接) |
(→代码说明) |
||
| Line 30: | Line 30: | ||
[[File:BakeBit - Button_nanopi_NEO.jpg|frameless|600px|BakeBit - Button_nanopi_NEO]] | [[File:BakeBit - Button_nanopi_NEO.jpg|frameless|600px|BakeBit - Button_nanopi_NEO]] | ||
| − | == | + | ==示例程序== |
下面是一个简单的BakeBit - Button模块的例子，当没有按键按下时，输出为1，当有按键按下时，输出为0. | 下面是一个简单的BakeBit - Button模块的例子，当没有按键按下时，输出为1，当有按键按下时，输出为0. | ||
| + | |||
| + | <syntaxhighlight lang="python"> | ||
| + | import time | ||
| + | import bakebit | ||
| + | |||
| + | # Connect the BakeBit Button to digital port D3 | ||
| + | # SIG,NC,VCC,GND | ||
| + | button = 3 | ||
| + | |||
| + | bakebit.pinMode(button,"INPUT") | ||
| + | |||
| + | while True: | ||
| + | try: | ||
| + | print(bakebit.digitalRead(button)) | ||
| + | time.sleep(.5) | ||
| + | |||
| + | except IOError: | ||
| + | print ("Error") | ||
| + | </syntaxhighlight> | ||
| + | |||
| + | ==运行示例== | ||
| + | |||
| + | test | ||
==相关资料== | ==相关资料== | ||
*[Schematic]([http://wiki.friendlyarm.com/wiki/images/8/8a/05-SCHEMATIC_Button.pdf BakeBit - Button.pdf]) | *[Schematic]([http://wiki.friendlyarm.com/wiki/images/8/8a/05-SCHEMATIC_Button.pdf BakeBit - Button.pdf]) | ||
Revision as of 06:38, 22 November 2016
1 介绍
- BakeBit - Button是一个瞬时（非自锁）按钮开关模块，用于检测按键事件，按钮被释放后自动恢复到常态。
- 在按钮未被按下时模块输出高电平，按钮被按下后输出低电平。
2 特性
- 使用标准的2.0mm 4 Pin BakeBit接口
- 数字信号输出
- PCB尺寸（mm）：20x24
- 引脚说明:
| 名称 | 描述 |
| GND | 地 |
| 5V | 电源5V |
| NC | 空 |
| SIG | 信号 |
3 硬件连接
BakeBit - Button模块需要搭配NEO_Hub模块才能连接到NanoPi NEO上使用。连接BakeBit - Button模块到NEO_Hub模块的D3口，并叠加连接NEO_Hub模块到NanoPi NEO上，参考下图连接模块：
4 示例程序
下面是一个简单的BakeBit - Button模块的例子，当没有按键按下时，输出为1，当有按键按下时，输出为0.
import time import bakebit # Connect the BakeBit Button to digital port D3 # SIG,NC,VCC,GND button = 3 bakebit.pinMode(button,"INPUT") while True: try: print(bakebit.digitalRead(button)) time.sleep(.5) except IOError: print ("Error")
5 运行示例
test
6 相关资料
- [Schematic](BakeBit - Button.pdf)
