Search found 13 matches

by Ildar Belkin
Sun Dec 28, 2025 6:51 am
Forum: General Discussion
Topic: Should I use no_sleep power managment lock when using uart_write_bytes
Replies: 1
Views: 980

Should I use no_sleep power managment lock when using uart_write_bytes

Hello

I use heavy no_sleep power managment lock. So should I use this for uart_write_bytes?
I never read about internal using locks in uart_write_bytes function. Viewed the source of uart_write_bytes and nothing see about power managment.

what official docs say:
(https://docs.espressif.com ...
by Ildar Belkin
Thu Aug 07, 2025 7:41 am
Forum: ESP-IDF
Topic: unset uart_set_pin on ESP32E
Replies: 2
Views: 128

Re: unset uart_set_pin on ESP32E

18 for TXD and 19 for RXD. ESP32-WROOM-32E.

The project no uses WiFi or BLE or SPI, but uses I2C

uart: GPIO 18 is not usable, maybe used by others

I use 2 UARTs: one for GNSS, one for sattelite modem.
Error appear only when GNSS (18 pin) is initialized second time (after deinit and deinstall ...
by Ildar Belkin
Wed Aug 06, 2025 1:38 pm
Forum: ESP-IDF
Topic: unset uart_set_pin on ESP32E
Replies: 2
Views: 128

unset uart_set_pin on ESP32E

Hello.
uart_set_pin is mandatory part of configuring UART.
How to unset pin? UART API has no uart_unset_pin() or other way to do this.

The ESP32 UART manual in part where uart_set_pin() described says:
"The same macro UART_PIN_NO_CHANGE should be specified for pins that will not be used."
I didn't ...
by Ildar Belkin
Tue Jun 11, 2024 10:55 am
Forum: ESP-IDF
Topic: Can't compile projects for esp32c6 target
Replies: 5
Views: 3039

Re: Can't compile projects for esp32c6 target

Hello ESP_Roland.
Thank you! You are right!
I've added IDF_TARGET_ESP32C6 to Kconfig.projbuild and it fixed my problem.
Everything is working as expected now.
:)
by Ildar Belkin
Mon Jun 10, 2024 5:20 pm
Forum: ESP-IDF
Topic: Can't compile projects for esp32c6 target
Replies: 5
Views: 3039

Re: Can't compile projects for esp32c6 target

Hello ESP_Roland!
No problem :) . Thank you for reply. I've sent you my project by private message.
If I can help you I will do you need to check or else for fixing.
by Ildar Belkin
Sun Jun 09, 2024 9:59 am
Forum: ESP-IDF
Topic: Can't compile projects for esp32c6 target
Replies: 5
Views: 3039

Can't compile projects for esp32c6 target

Hello.
Im compilling my projects for ESP32 for a long time via windows console.
Im using Notepad++ for writing code and windows console for building and flashing ESP32.
Everything is perfect. All projects are compiled as well with standard chain:

idf.py build
idf.py flash or idf.py app-flash ...
by Ildar Belkin
Tue Feb 27, 2024 3:41 pm
Forum: ESP-IDF
Topic: NimBLE adding new characteristic to existing service in runtime
Replies: 0
Views: 1198

NimBLE adding new characteristic to existing service in runtime

Hello.
Im trying to use base example to using Nimble:


...
static const struct ble_gatt_svc_def gatt_svcs[] = {
{.type = BLE_GATT_SVC_TYPE_PRIMARY,
.uuid = BLE_UUID16_DECLARE(0x180), // Define UUID for device type
.characteristics = (struct ble_gatt_chr_def[]){
{.uuid = BLE_UUID16_DECLARE ...
by Ildar Belkin
Wed Oct 25, 2023 7:05 am
Forum: General Discussion
Topic: Best 3.3v regulator for ESP32 running on battery
Replies: 6
Views: 14434

Re: Best 3.3v regulator for ESP32 running on battery

Hello. I use RT9080-33GJ5 in series product. The LDO has about 4 uA if I use ESP32-WROOM-32 in deep-sleep. Also it may be disabled by EN-pin with < 1uA.
RT9080 indirectly describes as 2-4 uA in "no load" mode and has power consumptions graph started from uA load current, but what does it mean ...
by Ildar Belkin
Wed Oct 25, 2023 6:52 am
Forum: General Discussion
Topic: External RTC 32768 crystal witn ESP32-WROOM-32/ 32D D0WD
Replies: 1
Views: 2272

External RTC 32768 crystal witn ESP32-WROOM-32/ 32D D0WD

Hello.
I using deep sleep and want to get more accurate RTC clocking by using external 32768 Hz crystal (GPIO32/33).
Neither BLE nor WIFI nor network stack needed. Just low power consumption during long periods (3-24 hors).
I read a lot of posts and see that there is an issue with external 32768 Hz ...
by Ildar Belkin
Wed Jun 28, 2023 5:31 pm
Forum: General Discussion
Topic: UART-to-UART maximum transfer speed
Replies: 2
Views: 1569

Re: UART-to-UART maximum transfer speed

MicroController
thak you!

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