I was trying to set up MicroPython on PyCharm 2021.3.3, unfortunately I was not able to successfully connect my board to IDE. I'm getting trying to use tools>>MicroPython>>MicroPython REPL:
Found the device, but could not connect via port 'COM4': could not open port 'COM4': PermissionError(13, 'Odmowa dostępu.', None, 5)
I'm not sure what to suggest. :-(
Press ENTER to continue
Then I have tried to flush simple program to control despite previous error and it spits out:
Connecting to COM4
Traceback (most recent call last):
File "C:\Users\reczul\AppData\Roaming\JetBrains\PyCharm2021.3\plugins\intellij-micropython\scripts\microupload.py", line 139, in <module>
main(sys.argv[1:])
File "C:\Users\reczul\AppData\Roaming\JetBrains\PyCharm2021.3\plugins\intellij-micropython\scripts\microupload.py", line 56, in main
board = Pyboard(port)
File "C:\Users\reczul\PycharmProjects\pythonProject1\venv\lib\site-packages\ampy\pyboard.py", line 147, in __init__
raise PyboardError('failed to access ' + device)
ampy.pyboard.PyboardError: failed to access COM4
What can I do to fix this error?
The sample code I have used:
from machine import Pin, Timer
led = Pin(25, Pin.OUT)
tim = Timer()
def tick(timer):
global led
led.toggle()
tim.init(freq=2.5, mode=Timer.PERIODIC, callback=tick)```
Assuming you are using a Pi Pico.
You are most likely getting this error because you pressed the 'BOOTSEL' button while plugging your device in.
Drag your UF2 file onto the device, it should reboot.
Don't unplug the device and hold the 'BOOTSEL' this time.
It should be good to go now.
Related
I've totally new in Python and also in the ANT+ technology. I wonder if that's not some basic problem, but I've been strugling with it for couple of days already browsing through forums with no luck..
So I'm trying to use the Python OpenANT library (https://github.com/Tigge/openant) to access my ANT doungle which is plugged into the USB port (WINDOWS 10 PRO). My goal is to access my Garmin through it and get some data from it. However, I'm stuck at the very beginning trying to inizialize the ANT Node. My code is this:
from ant.easy.node import Node
node=Node()
To this I get the exception:
File "C:/Users/Edgars/Desktop/untitled-5.py", line 2, in <module>
pass
File "C:\Users\Edgars\AppData\Local\Programs\Python\Python38-32\Lib\site-packages\ant\easy\node.py", line 56, in __init__
self.ant = Ant()
File "C:\Users\Edgars\AppData\Local\Programs\Python\Python38-32\Lib\site-packages\ant\base\ant.py", line 68, in __init__
self._driver.open()
File "C:\Users\Edgars\AppData\Local\Programs\Python\Python38-32\Lib\site-packages\ant\base\driver.py", line 193, in open
cfg = dev.get_active_configuration()
File "C:\Users\Edgars\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pyusb-1.1.0-py3.8.egg\usb\core.py", line 909, in get_active_configuration
return self._ctx.get_active_configuration(self)
File "C:\Users\Edgars\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pyusb-1.1.0-py3.8.egg\usb\core.py", line 113, in wrapper
return f(self, *args, **kwargs)
File "C:\Users\Edgars\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pyusb-1.1.0-py3.8.egg\usb\core.py", line 250, in get_active_configuration
bConfigurationValue=self.backend.get_configuration(self.handle)
File "C:\Users\Edgars\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pyusb-1.1.0-py3.8.egg\usb\backend\libusb0.py", line 519, in get_configuration
ret = self.ctrl_transfer(
File "C:\Users\Edgars\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pyusb-1.1.0-py3.8.egg\usb\backend\libusb0.py", line 601, in ctrl_transfer
return _check(_lib.usb_control_msg(
File "C:\Users\Edgars\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pyusb-1.1.0-py3.8.egg\usb\backend\libusb0.py", line 447, in _check
raise USBError(errmsg, ret)
usb.core.USBError: [Errno None] b'libusb0-dll:err [control_msg] sending control message failed, win error: A device which does not exist was specified.\r\n\n'
I have closed the Garmin Agent, so no other programs are using my ANT dongle at the same time. When I run my code, the specific sound occurs every time - the one that we hear when we detach a USB device by selecting "Eject" from the drop-down menu (the sound happens simultaneously with the exception message), so I guess the USB gets accessed at some moment.
Before the exception I get such a printout:
Driver available: [<class 'ant.base.driver.SerialDriver'>, <class 'ant.base.driver.USB2Driver'>, <class 'ant.base.driver.USB3Driver'>]
- Using: <class 'ant.base.driver.USB3Driver'>
Could not check if kernel driver was active, not implemented in usb backend
I have seen other users' threads where the printout says Using ... USB1Driver or Using ... USB2Driver, and they don't get this message. I've installed various python libraries trying to get even this far, and now I've worried that maybe they get in each other's way.. Can anybody help me with this? It's really frustrating that a program of only two code lines can get so complicated.. :D
!!!EDIT!!!
OK, I found the problem - in the "driver.py" file there's a line dev.reset() which disconnects my USB dongle before trying to access it. I have no idea why such a line should exist there. I tried to comment this line out, and now I'm not getting the abovementioned error anymore. However, what happens now is there are continuos timeouts..
So my code has evolved to this (although actually the same timeouts happen also with my initial 2-lines-long program):
from ant.easy.node import Node
from ant.easy.channel import Channel
from ant.base.message import Message
import threading
NETWORK_KEY=[0xb9,0xa5,0x21,0xfb,0xbd,0x72,0xc3,0x45]
def on_data(data):
print("Data received")
print(data)
def back_thread(node):
node.set_network_key(0x00,NETWORK_KEY)
channel=node.new_channel(Channel.Type.BIDIRECTIONAL_RECEIVE)
channel.on_broadcast_data=on_data
channel.on_burst_data=on_data
channel.set_period(16070)
channel.set_search_timeout(20)
channel.set_rf_freq(57)
channel.set_id(0,120,0)
try:
channel.open()
node.start()
finally:
node.stop()
print("ANT Node Shutdown Complete")
node=Node()
x=threading.Thread(target=back_thread,args=(node,))
x.start()
Now I get this error line printed out for ever:
<class 'usb.core.USBError'>, (None, b'libusb0-dll:err [_usb_reap_async] timeout error\n')
When my Garmin Agent is active, I get the error "ANT resource already in use" instead of the timeout, so I'm certain that my code is accessing the ANT dongle.. However, now (having closed the Garmin Agent) I have no idea about how to get rid of the timeout and how to establish a simple handshake with my Garmin device..
OK, now I've figured out that my Garmin Forerunner 310XT can't act as a data source and thus cannot be accessed using the ANT+ protokol. Instead, I should use the ANT-FS protocol of File Sharing. Keeping my head down and trying it out...
I posted a PR with some changes that I made to get Tigge’s openant library to work. Basically, I put a pause after the reset line that you mentioned above and bypassed the use of udev_rules as it doesn’t apply in Windows. You can use libusb but installation is a bit different. I’ve added Windows installation instructions to the readme in the PR with details on what worked for me.
I am using an external sound card with a built-in microphone for voice recognition on a Raspberry Pi 3 model B. The issue is that when I run the code the code executes but then stops on "SAY SOMETHING". When I terminate the code I get these errors.
This is my code:
import speech_recognition as voice
def voice_recognition():
speech = voice.Recognizer()
with voice.Microphone() as source:
print("SAY SOMETHING")
audio = speech.listen(source)
try:
command = speech.recognize_google(audio)
check = "forward" in command
check1 = "backward" in command
if(check == True):
print ('1')
if(check1 == True):
print ('2')
else:
print ('3')
except:
pass
voice_recognition()
And I am getting these errors:
Traceback (most recent call last):
File "/home/pi/Desktop/voice.py", line 29, in <module>
voice_recognition()
File "/home/pi/Desktop/voice.py", line 9, in voice_recognition
audio = speech.listen(source)
File "/usr/local/lib/python3.5/dist-packages/speech_recognition/__init__.py", line
620, in listen
buffer = source.stream.read(source.CHUNK)
File "/usr/local/lib/python3.5/dist-packages/speech_recognition/__init__.py", line
161, in read
return self.pyaudio_stream.read(size, exception_on_overflow=False)
File "/usr/local/lib/python3.5/dist-packages/pyaudio.py", line 608, in read
return pa.read_stream(self._stream, num_frames, exception_on_overflow)
The "errors" that you're seeing are normal when you terminate a Python program. If you run any Python code and terminate it (by pressing Ctrl+C on the command line) before it finishes, you will see a traceback of where the code terminated.
According to the speech_recognition library reference, Recognizer.listen() will not use a timeout by default (you can use listen(timeout=20) to timeout if nothing is received in 20 seconds). The code is probably using a wrong microphone, so the library never receives audio, so the program never terminates.
You should be able to use Microphone.list_microphone_names() to get a list of available microphones, and pass the index of your external microphone to the constructor (e.g. Microphone(device_index=3)).
I am trying out an utorrent automation using pywinauto lib. I want to add a torrent with URL. This option is under the file menu. I can get as far as opening uTorrent and then nothing happens. I used Swapy for generating this code. The box below opens only when I run the code in swapy. But when I save it into a file and run with cmd, only utorrent opens and a traceback occurs in the cmd.
from pywinauto.application import Application
app = Application().Start(cmd_line=u'"C:\\Users\\User\\AppData\\Roaming\\uTorrent\\u Torrent.exe" ')
torrentdfb = app[u'\xb5Torrent4823DF041B09']
torrentdfb.Wait('ready')
menu_item = torrentdfb.MenuItem(u'&File->Add Torrent from &URL...\tCtrl+U')
menu_item.Click()
app.Kill_()
Traceback:
Traceback (most recent call last):
File "AddTorrent.py", line 5, in <module>
torrentdfb.Wait('ready')
File "C:\Python27\lib\site-packages\pywinauto\application.py", line 380, in Wait
WaitUntil(timeout, retry_interval, lambda: self.__check_all_conditions(check_method_names))
File "C:\Python27\lib\site-packages\pywinauto\timings.py", line 308, in WaitUntil
raise err
pywinauto.timings.TimeoutError: timed out
I am new to python coding and I am not an expert. It would be helpful if you provide the explanation to solve my problem or the code. Thanks!!
uTorrent is spawning another process, this is how I got it:
>>> app.windows_()
[]
>>> app.process
6096
>>> app.connect(title_re=u'^μTorrent.*(build \d+).*')
<pywinauto.application.Application object at 0x000000000405C240>
>>> app.process
4044L
This is a final code working for me (with 32-bit uTorrent and 32-bit Python 2.7):
import pywinauto
app = pywinauto.Application().start(r'uTorrent.exe')
time.sleep(5) # because method connect() has no timeout param yet (planned for 0.6.0)
app.connect(title_re=u'^\u03bcTorrent.*(build \d+).*')
main_window = app.window_(title_re=u'^\u03bcTorrent.*(build \d+).*')
main_window.MenuSelect(u'&File->Add Torrent from &URL...\tCtrl+U')
app.AddTorrentFromURL.Edit.SetText('some URL')
app.AddTorrentFromURL.OK.Click()
Bitness is important. 32-bit uTorrent crashes if I use 64-bit Python.
I trying to open two serial ports in Python with the following code:
for i in range(0, 2):
if platform.system() == "Darwin":
pos = 2+i
else:
pos = i
port = serial.Serial(current_ports[pos], BAUD_RATE, timeout=TIMEOUT)
time.sleep(1.516)
port.write('#')
time.sleep(1.516)
out = ''
print "Reading MAC Address...."
while port.inWaiting() > 0:
out += port.read(1)
print out
if out == '04:E9:E5:00:EC:51':
led_port = port
elif out == '04:E9:E5:01:0C:E0':
matrix_port = port
Sometimes the ports open successfully, sometimes they don't. When they don't, I get this error message:
Reading MAC Address....
Traceback (most recent call last):
File "animation.py", line 227, in <module>
main()
File "animation.py", line 208, in main
led_port, matrix_port = get_ports()
File
"/Users/collinschupman/Documents/FutureCities/MurmurWall/Onsite/Raspi/helper_functions.py", line 41, in get_ports
while port.inWaiting() > 0:
File "/Library/Python/2.7/site-packages/serial/serialposix.py", line 449, in inWaiting
s = fcntl.ioctl(self.fd, TIOCINQ, TIOCM_zero_str)
IOError: [Errno 6] Device not configured
As you can see, it gets to the inWaiting() call and then throws this error.
For a little reference, the code is sending a message to a couple Arduinos so they can be identified by their MAC addresses.
Is there anything blatantly incorrect I'm doing Python-side which would cause this setup to fail once and a while? I'd say this code works 50% of the time right now.
Thanks,
Collin
Is there a getty process running on the serial ports on the Arduinos? Or even on the serial port of the local machine which is connecting to the Arduinos? If so perhaps it is interfering and should be stopped. Here is a reference which may be relevant: http://codeandlife.com/2012/07/29/arduino-and-raspberry-pi-serial-communication/
I had similar problem and I fixed it with the following solution
$ sudo nano /etc/inittab
and go to the bottom of the file, you will see
T0:23:respawn:/sbin/getty -L ttyAMA0 115200 vt100
or similar
simply add a # character to the beginning,now it looks like :
#T0:23:respawn:/sbin/getty -L ttyAMA0 115200 vt100
save the file and reboot
Hope this works
Reference:
http://www.hobbytronics.co.uk/raspberry-pi-serial-port
I'm recently started to use python with mobile app automation, as i decided to use python, the main instruments that I've found were monkeyrunner and androidviewclient.
But there is the first issue with which i dont know what to do:
package = 'com.mypackage.android'
activity = '.launchActivity'
component = package + "/" + activity
device, serialno = ViewClient.connectToDeviceOrExit()
device.startActivity(component=component)
time.sleep(3)
vc = ViewClient(device, serialno)
vc.dump()
showMenu = vc.findViewById("id/no_id/8")
showMenu.touch()
as i'm running it in windows cmd - monkeyrunner mypath\test-case1.py
i receive an exception:
131213 18:42:32.555:S [MainThread] [com.android.monkeyrunner.MonkeyRunnerOptions] Script terminated due to an exception
131213 18:42:32.555:S [MainThread] [com.android.monkeyrunner.MonkeyRunnerOptions]Traceback (most recent call last):
File "C:\Python27\tests\1.py", line 26, in <module>
device, serialno = ViewClient.connectToDeviceOrExit()
File "C:\Program Files (x86)\Android\AndroidViewClient\AndroidViewClient-maste
r\AndroidViewClient\src\com\dtmilano\android\viewclient.py", line 1381, in conne
ctToDeviceOrExit
ViewClient.setAlarm(timeout+5)
File "C:\Program Files (x86)\Android\AndroidViewClient\AndroidViewClient-maste
r\AndroidViewClient\src\com\dtmilano\android\viewclient.py", line 1341, in setAl
arm
signal.alarm(timeout)
File "C:\Program Files (x86)\Android\android-sdk\tools\lib\jython-standalone-2
.5.3.jar\Lib\signal.py", line 222, in alarm
NotImplementedError: alarm not implemented on this platform
am I doing something wrong? Please help.
Thank you a lot!
This is how setAlarm looks like
#staticmethod
def setAlarm(timeout):
osName = platform.system()
if osName.startswith('Windows'): # alarm is not implemented in Windows
return
signal.alarm(timeout)
so, it tries to identify that is Windows and then not invoking signal.alarm() which is not implemented, but for some reason it fails in your case.
Try to print the result of osName to see what went wrong.
UPDATE
Now I see, you are using monkeyrunner as the interpreter but AndroidViewClient >= 4.0.0 is 100% pure python, so you should run your scripts using a python 2.x interpreter.