Search found 13 matches

by zamek42@gmail.com
Sat Dec 19, 2020 9:01 am
Forum: ESP-IDF
Topic: Mass bluetooth gatt client
Replies: 2
Views: 227

Re: Mass bluetooth gatt client

Hi Chegewara,

Thx, I also found this, and this limit exists on Linux also reason of the bt chip. So I have to scan-connect-read-close continuously.

thx,
Zamek
by zamek42@gmail.com
Fri Dec 18, 2020 9:12 am
Forum: ESP-IDF
Topic: Mass bluetooth gatt client
Replies: 2
Views: 227

Mass bluetooth gatt client

Hi All, I need to log more than 20 heart rate values for a fitness room. The clients are in the room a couple of ten minutes long, they also can leave the room and come back. In ESP-IDF there are maximum 9 connects at a time and doc said every connects need ~1Kb DRAM memory. I have to send logged he...
by zamek42@gmail.com
Fri Jun 12, 2020 2:41 pm
Forum: ESP-IDF
Topic: Solution to drive 512 pcs of WS2812 LEDS + Bluetooth
Replies: 1
Views: 586

Re: Solution to drive 512 pcs of WS2812 LEDS + Bluetooth

I think so I can solved it. I forced bluetooth & other task to core 1 and LED driver only to core 0.
I set LED driver task to maximum priority & FreeRTOS timer lower than maximum priority. Seems work well.
by zamek42@gmail.com
Thu Jun 11, 2020 4:38 pm
Forum: ESP-IDF
Topic: Solution to drive 512 pcs of WS2812 LEDS + Bluetooth
Replies: 1
Views: 586

Solution to drive 512 pcs of WS2812 LEDS + Bluetooth

Hi All, I would like to drive 512pcs. ws2812 LED strip with ESP32 Devkit C. And I need to communicate with this machine by Bluetooth. I've tried led_strip (RMT) driver it works well, until there is only one task exists in system. When I use bluetooth it is randomly flashing, because scheduler breaks...
by zamek42@gmail.com
Fri May 03, 2019 5:40 am
Forum: ESP-IDF
Topic: Very accurate hardware timer & FreeRTOS
Replies: 8
Views: 4753

Re: Very accurate hardware timer & FreeRTOS

Hi ESP_Angus,

Thx for the idea this library seems good.

> PS Is there a reason you're only using one core?
I just want to dedicate a core for all non freertos components including hardware timer, but - I lready know - it is not the best idea.

thx,
Zamek
by zamek42@gmail.com
Mon Apr 29, 2019 12:08 pm
Forum: ESP-IDF
Topic: Very accurate hardware timer & FreeRTOS
Replies: 8
Views: 4753

Very accurate hardware timer & FreeRTOS

Hi All, I need to drive and addressable LED chain which contains 64 addressable LEDs. The timing needs very accurate, 1X430uS and 2X430uS (0 or 1 bits). AFAIK freertos uses timer0 as a hardware timer which is the highest priority timer. I found a config flag in make menuconfig to assign hardware tim...
by zamek42@gmail.com
Sun Mar 04, 2018 5:34 pm
Forum: General Discussion
Topic: Does ESP32 DevKit-C support BluFi?
Replies: 0
Views: 1046

Does ESP32 DevKit-C support BluFi?

Hi All,
I would like to use devkitC with both Bluetooth AND Wifi environment. Does it support BLUFI?

thx
Zamek
by zamek42@gmail.com
Fri Jan 26, 2018 1:31 pm
Forum: General Discussion
Topic: Wifi disconnect after a time
Replies: 0
Views: 1510

Wifi disconnect after a time

Hi All, I use a WIFI connection, and after init (about 5 minutes) the wifi connection breaks. Here is the log message: I (822129) wifi: bcn_timout,ap_probe_send_start I (824632) wifi: ap_probe_send over, resett wifi status to disassoc I (824632) wifi: state: run -> init (1) I (824633) wifi: n:1 0, o...
by zamek42@gmail.com
Fri Jan 19, 2018 7:43 am
Forum: General Discussion
Topic: ESP 32 wrover kit Linux OpenOCD
Replies: 3
Views: 2778

Re: ESP 32 wrover kit Linux OpenOCD

Hi, Thx that was the problem. The output is as the documetation said, and I can verify blink.bin. I tried to set gdb step by step as in the doc. Both command line and eclipse said: Connection timed out xtensa-esp32-elf-gdb -x gdbinit build/blink.elf GNU gdb (crosstool-NG crosstool-ng-1.22.0-61-gab83...
by zamek42@gmail.com
Wed Jan 17, 2018 1:24 pm
Forum: General Discussion
Topic: ESP 32 wrover kit Linux OpenOCD
Replies: 3
Views: 2778

ESP 32 wrover kit Linux OpenOCD

Hi All, I have a brand new ESP32 WROVER kit maybe it is V3, because it has ST7789V LCD driver. The TFT display demo and all other demos work well on it, but I cannot use openocd. I use Debian linux x64. I've downloaded the openocd source from the github, I could compile and install it successfully. ...

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