这是我正在使用的python代码。我正在尝试使用wii遥控器来触发蜂鸣器。我认为这对我的旧 wii 遥控器来说会是一个有趣的用途。与蜂鸣器交互的代码运行良好,因为我使用了一个示例脚本对其进行了测试。但是,当我尝试运行它时,我不断收到这个错误(见底部)。我是 python 新手,不胜感激。
import cwiid
from gpiozero import LED
import time
import os
Buzzer1 = LED(17)
Buzzer2 = LED(27)
def ConnectRemote():
os.system("rfkill unblock bluetooth")
print 'Press 1+2 On The Remote...'
global wm
wm = wiid.Wiimote()
print 'Connection Established!\n'
wm.led = 1
wm.rumble = 1
time.sleep(0.25)
wm.rumble = 0
time.sleep(0.5)
wm.rpt_mode = cwiid.RPT_BTN
def TryToConnect():
while True:
ConnectRemote()
break
while True:
buttons = wm.state['buttons']
#shutdown function using plus and minus buttons
if (buttons - cwiid.BTN_PLUS - cwiid.BTN_MINUS == 0):
print '\nClosing Connection To Wiimote'
wm.rumble = 1
time.sleep(0.25)
wm.rumble = 0
os.system("rfkill block bluetooth")
TryToConnect()
if (buttons & cwiid.BTN_A):
print 'Buzzer On'
Buzzer1.on()
Buzzer2.on()
else:
Buzzer1.off()
Buzzer2.off()
但我不断收到错误
Traceback (most recent call last):
File "WiimoteLEDs.py", line 36, in <module>
buttons = wm.state['buttons']
NameError: global name 'wm' is not defined
任何人都可以帮忙吗?提前致谢