sense hat 上的操纵杆代码
Code for joystick on sense hat
我刚买了一顶圣诞帽,我正在通过以下网站工作:https://projects.raspberrypi.org/en/projects/getting-started-with-the-sense-hat。在做网站的操纵杆部分时,我输入了这段代码:
from sense_hat import SenseHat
sense = SenseHat()
while True:
for event in sense.stick.get_events():
print(event.direction, event.action)
并出现以下错误:
Traceback (most recent call last):
File "/home/pi/python_programmes/hat_short.py", line 4, in <module>
for event in sense.stick.get_events():
AttributeError: 'SenseHat' object has no attribute 'stick'
谁能帮我解决这个问题?
根据 source code,最新版本(截至 2016 年 6 月)在 SenseHat
class 上有 stick
属性。确保您安装了最新的 sense-hat
:
sudo apt-get install --only-upgrade sense-hat
如果这不起作用,您可以克隆存储库并手动安装:
git clone https://github.com/RPi-Distro/python-sense-hat
cd python-sense-hat
sudo python setup.py install
有一个名为 https://www.element14.com/community/community/raspberry-pi/raspberry-pi-accessories/blog/2017/01/23/raspberry-pi-sense-hat-enabling-the-joystick 的网站,它会带您了解如何使操纵杆工作以及如何制作一个程序来响应操纵杆的移动,在屏幕上移动一个点。
要使操纵杆工作,请在终端中输入以下内容:
cd /usr/lib/python2.7/dist-packages/sense_hat
然后:
sudo rm __init__.py sense_hat.py __init__.pyc sense_hat.pyc
然后:
sudo wget https://raw.githubusercontent.com/RPi-Distro/python-sense-hat/master/sense_hat/__init__.py
sudo wget https://raw.githubusercontent.com/RPi-Distro/python-sense-hat/master/sense_hat/sense_hat.py
sudo wget https://raw.githubusercontent.com/RPi-Distro/python-sense-hat/master/sense_hat/stick.py
然后:
sudo nano sense_hat.py
然后看第17行,代码应该是这样的:
from .stick import SenseStick
但是你需要删除点,第 17 行应该如下所示:
from .stick import SenseStick
然后你需要按 ctrl+o 然后输入保存更改和 ctrl+x 退出 nano
使用操纵杆的代码示例:
from sense_hat import SenseHat
sense = SenseHat()
while True:
for x in sense.stick.get_events():
if x.direction == 'up':
sense.show_letter("U")
elif x.direction == 'down':
sense.show_letter("D")
elif x.direction == 'left':
sense.show_letter("L")
elif x.direction == 'right':
sense.show_letter("R")
elif x.direction == 'middle':
sense.show_letter("M")
我刚买了一顶圣诞帽,我正在通过以下网站工作:https://projects.raspberrypi.org/en/projects/getting-started-with-the-sense-hat。在做网站的操纵杆部分时,我输入了这段代码:
from sense_hat import SenseHat
sense = SenseHat()
while True:
for event in sense.stick.get_events():
print(event.direction, event.action)
并出现以下错误:
Traceback (most recent call last):
File "/home/pi/python_programmes/hat_short.py", line 4, in <module>
for event in sense.stick.get_events():
AttributeError: 'SenseHat' object has no attribute 'stick'
谁能帮我解决这个问题?
根据 source code,最新版本(截至 2016 年 6 月)在 SenseHat
class 上有 stick
属性。确保您安装了最新的 sense-hat
:
sudo apt-get install --only-upgrade sense-hat
如果这不起作用,您可以克隆存储库并手动安装:
git clone https://github.com/RPi-Distro/python-sense-hat
cd python-sense-hat
sudo python setup.py install
有一个名为 https://www.element14.com/community/community/raspberry-pi/raspberry-pi-accessories/blog/2017/01/23/raspberry-pi-sense-hat-enabling-the-joystick 的网站,它会带您了解如何使操纵杆工作以及如何制作一个程序来响应操纵杆的移动,在屏幕上移动一个点。
要使操纵杆工作,请在终端中输入以下内容:
cd /usr/lib/python2.7/dist-packages/sense_hat
然后:
sudo rm __init__.py sense_hat.py __init__.pyc sense_hat.pyc
然后:
sudo wget https://raw.githubusercontent.com/RPi-Distro/python-sense-hat/master/sense_hat/__init__.py
sudo wget https://raw.githubusercontent.com/RPi-Distro/python-sense-hat/master/sense_hat/sense_hat.py
sudo wget https://raw.githubusercontent.com/RPi-Distro/python-sense-hat/master/sense_hat/stick.py
然后:
sudo nano sense_hat.py
然后看第17行,代码应该是这样的:
from .stick import SenseStick
但是你需要删除点,第 17 行应该如下所示:
from .stick import SenseStick
然后你需要按 ctrl+o 然后输入保存更改和 ctrl+x 退出 nano
使用操纵杆的代码示例:
from sense_hat import SenseHat
sense = SenseHat()
while True:
for x in sense.stick.get_events():
if x.direction == 'up':
sense.show_letter("U")
elif x.direction == 'down':
sense.show_letter("D")
elif x.direction == 'left':
sense.show_letter("L")
elif x.direction == 'right':
sense.show_letter("R")
elif x.direction == 'middle':
sense.show_letter("M")