Search found 12 matches

by PawelJalocha
Sun Oct 28, 2018 5:32 pm
Forum: General Discussion
Topic: Bluetooth SPP using Linux
Replies: 3
Views: 1327

Re: Bluetooth SPP using Linux

I have exactly same problem, did you possibly find a fix ?
Why does the BT SPP present itself as audio-card ?
This is the way tablets and laptops see it.
by PawelJalocha
Sun Oct 28, 2018 5:06 pm
Forum: General Discussion
Topic: ESP32 Bluetooth SPP with bidirectional communication (send and receive)
Replies: 18
Views: 9081

Re: ESP32 Bluetooth SPP with bidirectional communication (send and receive)

Here is what I see with the Linux bluetoothctl: Class: 0x2c0414 Icon: audio-card Paired: yes Trusted: no Blocked: no Connected: no LegacyPairing: no UUID: Serial Port (00001101-0000-1000-8000-00805f9b34fb) RSSI: -54 the problem is the "audio-card" - this way laptops and tablets see this BT device. C...
by PawelJalocha
Sun Oct 28, 2018 3:32 pm
Forum: General Discussion
Topic: ESP32 Bluetooth SPP with bidirectional communication (send and receive)
Replies: 18
Views: 9081

Re: ESP32 Bluetooth SPP with bidirectional communication (send and receive)

OK, I am working with ESP-IDF and I actually got to the stage where I can see and pair the BT of my ESP32 in classic BT mode. But, it refuses to connect, which I suspect is because the ESP32 is seen as audio-card and not a serial port. Is there a way to resolve this situation ? Are there any paramet...
by PawelJalocha
Sat Oct 27, 2018 10:18 pm
Forum: General Discussion
Topic: ESP32 Bluetooth SPP with bidirectional communication (send and receive)
Replies: 18
Views: 9081

Re: ESP32 Bluetooth SPP with bidirectional communication (send and receive)

Hello, I need the SPP mode too and actually I am not able to make it to work at all. With some older ESP-IDF I was able to get to a point where the BT was reported as audio device thus could not connect it as serial port with the newer ESP-IDF it is still reported as audio but is mostly dead thus no...
by PawelJalocha
Sun Apr 29, 2018 1:34 pm
Forum: General Discussion
Topic: Running FreeRTOS on both cores
Replies: 3
Views: 717

Re: Running FreeRTOS on both cores

Thank you, thus from the programmer point of view the RTOS runs as if there was a single core as long as all the resources are properly protected by the semaphores ?

Is given task run always by the same core or it can be switched between cores ?
by PawelJalocha
Sat Apr 28, 2018 10:49 pm
Forum: General Discussion
Topic: How to send data to the serial console
Replies: 6
Views: 2430

Re: How to send data to the serial console

No, but I am writing to the console UART, which is already setup and open, correct ?

I am communicating with the GPS UART and it all works fine, I set it up, etc.
But the console UART is already setup by the system I understand.
by PawelJalocha
Sat Apr 28, 2018 7:17 pm
Forum: General Discussion
Topic: Questions about SPIFFS
Replies: 0
Views: 392

Questions about SPIFFS

What happens when a file is not properly closed: say the device happens to crash or be repowered ? Is some part of the file readable or is it all gone ? Is it possible to check if a given file is still being written or if it is already closed ? As one can guess I need these features for data logging...
by PawelJalocha
Sat Apr 28, 2018 1:59 pm
Forum: General Discussion
Topic: Running FreeRTOS on both cores
Replies: 3
Views: 717

Running FreeRTOS on both cores

In my application, I have enabled running the FreeRTOS on both cores and then I observed like memory overwrites, at least on the console output. My application would as well become unstable: it would run for an hour or two and then simply stop, not even restarted. Is there anything to consider when ...
by PawelJalocha
Sat Apr 28, 2018 1:48 pm
Forum: General Discussion
Topic: File transfer over the console/uart
Replies: 0
Views: 386

File transfer over the console/uart

If my application creates or needs files in the /spiffs is there an established protocol to exchange files through the console ?
Somethink like kermit or zmodem so one can easily transfer files over the serial conenction ?
by PawelJalocha
Sat Apr 28, 2018 12:43 am
Forum: General Discussion
Topic: How to send data to the serial console
Replies: 6
Views: 2430

Re: How to send data to the serial console

Thank you again, In my application, all works fine, when I use putchar() and the base call to send characters to the console. But when I try to use UART library and I call uart_write_bytes(UART_NUM_0, ) then I receive stream of errors like: uart: uart_write_bytes(1073): uart driver error thus what a...

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