I just bought a GPS bluetooth receiver, which has been correctly paired with my OSX machine. Now I would like to query the device for my position with python. How do I do it?
I assume your GPS receiver works over a virtual COM port, so it's independent of bluetooth.
Probably these libraries will help you:
Python bindings for gpsd (which is available for Mac too)
PyGPS, untested
with a virtual COM port you can use this script with the NMEA 0183 protocol http://miguellopes.net/bluetooth-gps-python/ (it's in portuguese but google translator can give you a help there)
Related
How could I launch code.py that only exists on a raspberry, from a python command line on a computer connected by an Ethernet cable. Machine A and the raspberry are connected to each other by a simple ethernet cable, and none of those two endpoints are connected to the internet. They only have the latest version of python installed and can't have anything more installed on them.
It looks like subprocess.Popen() could be a way to tackle it. But with the little knowledge I have I can't understand and know for sure if using this method is suitable !
Thank you for your time :)
I have a modem and four Esp8266 and a Raspberry Pi. I want to control Esp with Python language via internet. I have read this project.
https://randomnerdtutorials.com/micropython-mqtt-esp32-esp8266/
Instead of ESP2, I implemented the code on Windows. But I got the error ModuleNotFoundError: No module named 'ustruct'.
Is there a way for me to remotely check the Raspberry Pi and ESPs using Windows?
Of course I want to use MQTT.
This photo shows what I have described.
ustruct is a MicroPython Module that is available on all if not most MicroPython firmwares ( including the Win32 version of MicroPython)
If you need to / want to port your code to Cpython (on windows or other) that should not be too much work as the two are quite compatible.
as your project needs network capabilities using the Windows port of MicroPython is not an option as neither the Unix nor the Widows ports come with a network stack you compile/download a windows port of MicroPython
I would like to build a camera trigger for my phone by simulating a BLE keyboard that sends the Volume Up key to the phone connected by Bluetooth. I want this because I want to trigger the native Camera app, and not an embedded camera view.
I'm agnostic about technology used but ideally for simplicity I'd like it to be a command line utility in my Macbook, with something like Go or Node.js.
I've looked into Noble for Node.js, which doesn't seem to be oriented at emitting, and found projects for arduino, and found a couple of StackOverflow questions asking the same, but nothing definitive yet.
Apparently the Bleno project for Node.js could be better suited, but apparently it's very outdated.
Would someone please point me in the right direction?
Thank you
Edit
I was able to use Bleno to emit 0xEA and 0xE9 (Volume Up and Volume Down apparently), and using the LightBlue app I'm able to inspect that receive those messages, however, connecting to the MacBook through the phone's bluetooth does not increase/decrease volume.
Edit
Found this outdated project written in Swift 3 for reference
Edit Apparently the pybluez project looks like it could be a good option
You should be able to use the terminal for that. Eg. in Windows, you can start the camera app using start microsoft.windows:camera
Something similar should be available even in Mac. Try that out. Otherwise, go to the root directory where the camera app is stored. And then trigger that from code.
You need to create a Bluetooth HID (or HID over GATT) peripheral that your phone can connect to and will receive the key commands from.
There is a project here that did it with a Raspberry Pi:
https://gist.github.com/ukBaz/a47e71e7b87fbc851b27cde7d1c0fcf0#gistcomment-2997623
Unfornately the underlaying Bluetooth library will not move across to your Mac Book.
The HID protocol is documented here: https://github.com/jpbrucker/BLE_HID/blob/master/doc/HID.md
In summary, I think what your saying is that you want to make an cli application which is on your laptop/desktop connect to your phone via Bluetooth and simulate a volume key from your laptop/desktop keyboard.
Android:
To do this you will need:
Python 3.5 or above
PyBluez
Keyboard(Python module/API)
Android Studio
Java Development Kit 8 (preferably 11 or 14)
Android BLE
So in order to do this I would create a cli application with python3 and I would record the key presses on the laptop/desktop machine by using the keyboard module this then gets transmitted(bluetooth) via the PyBluez module to your phone. Your phone then accepts the bluetooth data via Android BLE and then simulates the volume button press.
DISCLAIMER:
This only works when the phone is already paired to your pc and only work on android phones 4.4.4 and above.
Some Links That Could Help You:
Bluetooth lib for python 3 ,
detect key press in python? ,
Create a socket for 4.0 bluetooth transmission
IOS:
To do this you will need:
Python 3.5 or above
PyBluez
Keyboard(Python module/API)
XCode
Swift
Core Bluetooth Module
So in order to do this I would create a cli application with python3 and I would record the key presses on the laptop/desktop machine by using the keyboard module this then gets transmitted(bluetooth) via the PyBluez module to your phone. Your phone then accepts the bluetooth data via Core Blutooth Module in swift and then simulates the volume button press.
DISCLAIMER:
The phone and laptop/desktop must be paired before it runs this might sound obvious but some people might ignore this.
Some Links That Could Help You:
iOS use the volume buttons as input ,
https://developer.apple.com/documentation/corebluetooth/transferring_data_between_bluetooth_low_energy_devices
Working with an Adafruit FTDI 232H Breakout assembly. I've already asked at Adafruit and FTDI and I'm still clueless. Writing in Python using the Adafruit-provided libraries and the FTDI libraries. Very new to Python and the FTDI 232H device...
Using Windows 10 Pro
I am able to successfully install the 'drivers' for the Adafruit based on this tutorial (specifically the Windows portion):
https://learn.adafruit.com/adafruit-ft232h-breakout?view=all
In the end, the interface will work, but what happens is that the device seems to be locked to a physical USB port. If I move the device to another USB port on the same machine, it is not recognized.
Based on some reading I've done, it seems like the driver, although installed in Windows, can only associate with the device on one port. Some say that Windows uses the serial number to keep track of what device uses what driver.
I have observed, using USBDView, that this device is not displaying a S/N. I have other devices that do not display a serial number and they can move from port to port without issue. This leads me to believe that the S/N tracking may not be 100% true in Windows. The Adafruit board does have a S/N in the EEPROM, but for some reason that information is not being provided to Windows / USBDView. I've not been able to successfully access the EEPROM via the FTProg utility.
I suspect that this might have something to to with the libusbK library that is installed via Zadig tool (again in the instructions) but I am not sure. FTDI says that there should not be any issue using the libusbK library.
Can anyone out there give me some pointers on:
Is it accurate that Windows uses the S/N to keep track of what driver goes with what device?
If so, how to get the FTDI device to display the S/N?
Is there some other setting in Windows that needs to be changed to allow this device to be used on other physical ports?
Is there any other utility like FTProg that could be used to work with the EEPROM?
Am I just missing something simple, Noob-style?
Thank you in advance,
I seem to recall a similar case related to COM port enumeration and Windows where the COM port enumeration is a hash of assorted variables including the PCI bus #, device #, etc. We witnessed this through the Microsoft devcon utility which is priceless and is a command line version of Device Manager.
https://learn.microsoft.com/en-us/windows-hardware/drivers/devtest/devcon
https://blogs.technet.microsoft.com/deploymentguys/2009/12/16/where-to-find-devcon-exe/
If you google around, you can find the compiled version of this invaluable tool. With confidence, believe this tool will assist you to debug your USB port mystery. Good luck.
My setup looks like this: A 64-bit box running Windows 7 Professional is connected to a Beaglebone running Angstrom Linux.
I'm currently controlling the beaglebone via a putty command line on the windows box.
What I'd like to do is run an OpenCV script to pull some vision information, process it on the windows box, and send some lightweight data (e.g a True or False, a triplet, etc.) over the (or another) USB connection to the beaglebone.
My OpenCV program is running using Python bindings, so any piping I can do with python would be preferable. I've played around with pyserial to receive data on a windows box via a COM port, so it seems like I could use that on the windows side... at a total loss though on the embedded linux front
Normally on the linux front, if the usb dongle is of the right type, you will see something like /dev/usbserial or similar device. Maybe check dmesg after plugging the cable.
(on linux you can run find /dev | grep usb to list all usb related devices)
Just a side note, I've seen the beaglebone has an ethernet port, why not just using a network socket? It's all easier than reinventing a protocol on usb.
If you want to use python, take a look o PyUSB, as you can see for example in Sending data via USB using PyUSB. A related post is PyUSB for the Raspberry Pi.