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by LinuxKoku
Mon Sep 24, 2018 11:00 am
Forum: General discussion
Topic: Raspberry PI project, your opinions and advice
Replies: 4
Views: 360

Re: Raspberry PI project, your opinions and advice

Thank you so much,
I do not have any more information on the project, as soon as I will have it I would relaunch the subject :D ! I'm going to look for the more ready websockets.
by LinuxKoku
Mon Sep 24, 2018 9:44 am
Forum: General discussion
Topic: Raspberry PI project, your opinions and advice
Replies: 4
Views: 360

Re: Raspberry PI project, your opinions and advice

Hello, thank you for your answer, According to my tutor, the server part is fully supplied and functional, I was also told that I would use python, and your WebSockets solution encourages to use other programming languages like php! I do not know more about what I will use but thank you very much fo...
by LinuxKoku
Mon Sep 24, 2018 8:20 am
Forum: General discussion
Topic: Raspberry PI project, your opinions and advice
Replies: 4
Views: 360

Raspberry PI project, your opinions and advice

Hello, I have a university project about the management of data transmission to a web server with Raspberry Pi in Python, the data are environmental data (temperature, pressure, brightness, wind, ...). This work aims to develop a Python program embedded in a Raspbery PI that detects pulses (from var...
by LinuxKoku
Fri Jul 27, 2018 7:37 am
Forum: Advanced users
Topic: Configuration of a RTC-MCP79410 with Raspberry PI 3
Replies: 8
Views: 561

Re: Configuration of a RTC-MCP79410 with Raspberry PI 3

Hello, :idea: Possibility: If the RTC is no longer powered, it loses the time so when I turn my system back on, I go back to the default time, while the RTC has an external battery that allows it to be autonomous, so it should not come back by default, looking on the RTC datasheet, I find a bit that...
by LinuxKoku
Thu Jul 26, 2018 12:59 pm
Forum: Advanced users
Topic: Configuration of a RTC-MCP79410 with Raspberry PI 3
Replies: 8
Views: 561

Re: Configuration of a RTC-MCP79410 with Raspberry PI 3

Hello,

If you know safe source configurations, suggest them to me, I will uninstall my configurations, and redo what you offer me.
I completely block, so any idea is welcome

Thank you all
by LinuxKoku
Thu Jul 26, 2018 8:01 am
Forum: Advanced users
Topic: Configuration of a RTC-MCP79410 with Raspberry PI 3
Replies: 8
Views: 561

Re: Configuration of a RTC-MCP79410 with Raspberry PI 3

Hello, I do not think it's a battery problem, becauseI tried several RTC and it's the same thing, I think it's a problem of configuration, the configurations I made are so numerous that I do not know which ones I I did, but it's the same that I find everywhere (see ( https://www.open-electronics.org...
by LinuxKoku
Wed Jul 25, 2018 3:33 pm
Forum: Advanced users
Topic: Configuration of a RTC-MCP79410 with Raspberry PI 3
Replies: 8
Views: 561

Configuration of a RTC-MCP79410 with Raspberry PI 3

Hello, I just configured a RTC (MCP79410) with a Raspberry PI 3, I made the recommended configurations, then I do the command sudo hwclock -r and in fact, I always have the default time (2001-1- 1 01:00: ....) but when I do sudo hwclock -w , the system takes the internet time, and the clock works by...
by LinuxKoku
Tue Jul 24, 2018 7:25 am
Forum: Python
Topic: File transfer - 4G key with Raspberry PI 3
Replies: 1
Views: 133

File transfer - 4G key with Raspberry PI 3

Hello, I have a Raspberry PI3, and I aim to make a data transmission (files) on a server (storage space) using a 4G key, after having configured my 4G key on my Raspberry PI, I would now like to attack python programming to convey this data! by spending a lot of time on google, I fall on the exchang...
by LinuxKoku
Tue Jul 17, 2018 1:12 pm
Forum: Raspbian
Topic: [Solved] Boot a Raspberry PI 3 from a USB mass storage device
Replies: 9
Views: 1336

Re: Boot a Raspberry PI 3 from a USB mass storage device

Hello,

I just installed on the USB the official Raspbian version and it works! so as you said B.Goode, it's a problem when copying my SD card but I think I redo my configurations and stay on this version, so thank you for your help
by LinuxKoku
Tue Jul 17, 2018 12:36 pm
Forum: Raspbian
Topic: [Solved] Boot a Raspberry PI 3 from a USB mass storage device
Replies: 9
Views: 1336

Re: Boot a Raspberry PI 3 from a USB mass storage device

Thank you for your answer,
B.Goode wrote: Just to prove that the process works, follow the Raspberry Pi Foundation documentation and install the standard Raspbian Operating System image to a usb device and check that your RPi will boot from it.
I will follow your suggestion, I will inform you of the result
by LinuxKoku
Tue Jul 17, 2018 12:20 pm
Forum: Raspbian
Topic: [Solved] Boot a Raspberry PI 3 from a USB mass storage device
Replies: 9
Views: 1336

Re: Boot a Raspberry PI 3 from a USB mass storage device

B.Goode wrote:
Tue Jul 17, 2018 12:15 pm
This is the English language section of the forum.
Sorry, it was the google translator who translated me automatically! I corrected.
by LinuxKoku
Tue Jul 17, 2018 12:13 pm
Forum: Raspbian
Topic: [Solved] Boot a Raspberry PI 3 from a USB mass storage device
Replies: 9
Views: 1336

Re: Boot a Raspberry PI 3 from a USB mass storage device

Hello, thank you for your answers :!: I did not program the USB boot mode on the USB key! I copied the OS before configuring the USB boot mode on the SD card, I think that comes from the the problem! I copy the SD card to the USB and then I put the SD card to configure it in USB mode, I restarted th...
by LinuxKoku
Tue Jul 17, 2018 10:28 am
Forum: Raspbian
Topic: [Solved] Boot a Raspberry PI 3 from a USB mass storage device
Replies: 9
Views: 1336

[Solved] Boot a Raspberry PI 3 from a USB mass storage device

Bonjour, I worked on a project of a passenger counting system for a bus with a Raspberry PI 3, because of the vibrations of the bus, the micro SD is not stable, so I wanted to put the OS on USB , so a boot with USB key, to do this, I followed your tutorial ( https://www.raspberrypi.org/documentation...
by LinuxKoku
Tue Jul 17, 2018 7:05 am
Forum: Python
Topic: RTC management with Raspberry PI 3
Replies: 7
Views: 515

Re: RTC management with Raspberry PI 3

Hello,
I'm going to look at all this closely. Doing my research on MCP79410 alarm python I came across a lot of codes, thank you
by LinuxKoku
Mon Jul 16, 2018 1:32 pm
Forum: Python
Topic: RTC management with Raspberry PI 3
Replies: 7
Views: 515

Re: RTC management with Raspberry PI 3

Hello, thank you for your answer,

I understood what he told me, now I'm looking for examples of codes that could work on Raspberry PI? Do you have any indications?
by LinuxKoku
Mon Jul 16, 2018 11:24 am
Forum: Python
Topic: RTC management with Raspberry PI 3
Replies: 7
Views: 515

Re: RTC management with Raspberry PI 3

With the command: ls -l /dev we can also see that RTC is configured (I connected it on GPIO2/SDA and GPIO3/SCL), otherwise I followed a tutorial to install it, and I think it is well installed. rtc.png For the code I can not find anything else, you have something to offer me? indications to target m...
by LinuxKoku
Mon Jul 16, 2018 9:15 am
Forum: Python
Topic: RTC management with Raspberry PI 3
Replies: 7
Views: 515

RTC management with Raspberry PI 3

Hello, I own a Raspberry PI 3, and I would like to use the real-time clock ( https://www.microchip.com/wwwproducts/en/MCP79410#additional-features ), which is connected on the i2c. I started by setting up RTC and I can get the date by typing date on Terminal: [email protected]:~ $ date lundi 16 juillet...
by LinuxKoku
Thu Jul 12, 2018 8:54 am
Forum: Beginners
Topic: UART (PL011) and mini UART
Replies: 3
Views: 1840

Re: UART (PL011) and mini UART

Thank you very much, I just read everything and it's very clear now, So in summary, I can connect my RS-485 link to pins 8 and 10, by activating the UART with enable_uart = 1 , and put the bluetooth on the mini UART with pi3-miniuart-bt for use later, and put the GPS on the USB port and configure it...
by LinuxKoku
Thu Jul 12, 2018 7:30 am
Forum: Beginners
Topic: UART (PL011) and mini UART
Replies: 3
Views: 1840

UART (PL011) and mini UART

Hello, I am studying all available resources of RaspBerry PI3, for full use, and after extensive research on UART, I find myself very confused! there are two UARTs on RPI3, mini UART and UART (PL011)! What I do not understand is that in my research I find that the UART is floundering on the pins 8 a...
by LinuxKoku
Mon Jul 09, 2018 2:32 pm
Forum: Networking and servers
Topic: [Solved] Send/Receive a byte frame with Bluetooth between PC and Raspberry PI 3
Replies: 14
Views: 1406

Re: Send/Receive a byte frame with Bluetooth between PC and Raspberry PI 3

Hello,

The error is caused by the allocation of the com port 12 to several connections, it was necessary to disconnect all the other systems connected to this port or put on the com 13, and everything works!

Thank you again for your help :mrgreen:
by LinuxKoku
Fri Jul 06, 2018 9:24 am
Forum: Python
Topic: [Solved] Number of bytes in the Serial Bluetooth Buffer (PyBluez)
Replies: 1
Views: 234

Re: Number of bytes in the Serial Bluetooth Buffer (PyBluez)

Hello, I wanted to have the number bytes in the buffer, to make a condition to get out of an infinite loop that displays what is received in the Buffer, and having not found this function equivalent, I used the function sock.sett imeout(time) to exit the Bluetooth send / receive function if no actio...
by LinuxKoku
Thu Jul 05, 2018 1:21 pm
Forum: Python
Topic: [Solved] Number of bytes in the Serial Bluetooth Buffer (PyBluez)
Replies: 1
Views: 234

[Solved] Number of bytes in the Serial Bluetooth Buffer (PyBluez)

Hello, I just made a program that allows me to read on the port of the internal bluetooth Raspberry PI, so I create an infinite loop to read all the bytes received, but to stop the loop I want to put a condition for him that it stops if there is nothing more in the Buffer, to realize I am looking fo...
by LinuxKoku
Thu Jul 05, 2018 10:53 am
Forum: Networking and servers
Topic: [Solved] Send/Receive a byte frame with Bluetooth between PC and Raspberry PI 3
Replies: 14
Views: 1406

Re: Send/Receive a byte frame with Bluetooth between PC and Raspberry PI 3

Hello, I am French so excuse my english :oops: ! I wanted to say:

Client code on Raspberry PI
Server code on Windows
by LinuxKoku
Wed Jul 04, 2018 12:24 pm
Forum: Networking and servers
Topic: [Solved] Send/Receive a byte frame with Bluetooth between PC and Raspberry PI 3
Replies: 14
Views: 1406

Re: Send/Receive a byte frame with Bluetooth between PC and Raspberry PI 3

Hello, I managed to send byte frames from the raspberry PI to my PC, I could read his grace to a Terminal, to display his I create a server code on my PC to read this data, but I came across an error, here are the two codes: Customer code works very well, without error: #!/usr/bin/env python # -*- c...
by LinuxKoku
Wed Jul 04, 2018 8:17 am
Forum: Troubleshooting
Topic: Raspberry PI3 Bluetooth COM Port (rfcomm.conf file does not exist)
Replies: 5
Views: 687

Re: Raspberry PI3 Bluetooth COM Port (rfcomm.conf file does not exist)

Code: Select all

sudo sdptool browse local
it gives : Failed to connect to SDP server on FF:FF:FF:00:00:00: No such file or directory

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