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HardwareSerial flush() was returning before all data was sent out through serial port.
This is a problem to some RS485 libraries that depend on it to signaling.

This PR solves the issue by forcing it to block flush() until all data is sent.

This PR is refactoring of DAC HAL in order to use IDF instead of current Register manipulation approach.

Edited dacWrite() to use ESP-IDF api.
Added dacDisable() so there is an option to disable dac channel.
Co-authored-by: Me No Dev <me-no-dev@users.noreply.github.com>

Fixes: https://github.com/espressif/arduino-esp32/issues/6020

Co-authored-by: caternuson <caternuson@gmail.com>
Co-authored-by: Kattni Rembor <kattni@adafruit.com>
Co-authored-by: Jeff Epler <jeff@adafruit.com>
Co-authored-by: Jeff Epler <jepler@gmail.com>
Co-authored-by: Ha Thach <thach@tinyusb.org>

esp-dsp: master 6b25cbb
esp-face: master d141502
esp-rainmaker: f1b82c7
esp32-camera: master 61400bc
esp_littlefs: master 3c29afc

* Refactoring function headers

Changing the header so the main TwoWire::requestFrom() definition uses a `size_t` instead of a `uint8_t`, removing the 255 bytes limit on I2C requests.
Co-authored-by: Flaviu Tamas <me@flaviutamas.com>
Co-authored-by: Me No Dev <me-no-dev@users.noreply.github.com>

* using ksz8081 only from ESP-IDF 4.4 onwards

The previous assertion only considerate the existance of ESP-IDF 4.3, but with the ESP-IDF 4.3.1 release this assertion would generate errors. Now only includes from ESP-IDF 4.4 onwards.
Co-authored-by: Me No Dev <me-no-dev@users.noreply.github.com>

Summary

This PR contains adding:

Issue template using forms
Feature Template using forms
Update of Pull Request template
All yaml files have been checked by online validator.

Pages are rendered here (for easier review):
Feature Request template
Issue Template

Impact

These templates can help with more accurate issue/PR explanations which can improve handling these contribution and in overall have a positive influence on User experience.

Related links

This PR closed issue #5956

Co-authored-by: Me No Dev <me-no-dev@users.noreply.github.com>

Migrate MD5Builder to use esp_rom functions directly rather than rely on wrappers that can be omitted from compilation based on sdkconfig. (#5941)

* add new documation GPIO
Co-authored-by: pedro.minatel <pedro.minatel@espressif.com>

- supports the WiFi/Ethernet board with WT32-S1 module and LAN8720A Ethernet PHY
- documentation available at http://www.wireless-tag.com/portfolio/wt32-eth01/

Current implementation clears _headers when request was sent. If the
user added custom request headers, they will be lost and the redirected
request will not contain them. This commit changes the scope of cleanup
so that the headers survive redirects but don't survive connection
reuse.

1.0.6 changed scanning method to always scan all available channels during connect. This results in results in connect taking about ~3 seconds instead of ~1. This patch changes the behavior to use WIFI_FAST_SCAN if client used a specific channel.

* Merged all TTGO-LoRa32 Board profiles (see #5933)

* Fix for LORA_RST (see #5966)

* [Feature] Added Sonoff DUALR3 support with RainMaker example

* [Feature] Added skip files for C3 and S2

Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>

fix boad error : "--elf-gcc.path}/bin/--elf-g++": file does not exist
and fix follow esp32 dev module

(latest) version.
Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>

- Remove the execute bit from source and text files.
- on-pages.sh script needs the execute bit to be set.
Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>

All the workflows are now migrated to Github Actions.
Update the on-push.sh script to remove references to TravisCI variables.
Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>

also update tinyuf2 bootloader for adafruit boards to 0.6.2

* Editing esp-idf_component docs

* Changed idt to ESP-IDF
Co-authored-by: Pedro Minatel <pminatel@gmail.com>

esp-dsp: master 6b25cbb
esp-face: master 859f32a
esp-rainmaker: f1b82c7
esp32-camera: master 61400bc
esp_littlefs: master 3c29afc

It was found that when I2C device is holding the clock LOW, ESP32 master is failing to wait for the clock to be released.

Fixes: #5875
Fixes: sparkfun/SparkFun_u-blox_GNSS_Arduino_Library#77

changes "private" vars to "protected" so that descendants are allowed to access them.

* [Docs] Added the supported SoC table link on the README file

* [Docs] Added the ESP32-S3 datasheet link to the getting started page

I misplaced the additions.

Summary

Only affects ETH (not WiFi)

This PR solves #5733 by allowing the DHCP IDF server to complete its tasks and only then it sets a static IP.
This also solves another related failure reported in this issue (#5733 (comment)).

fix #5733

Impact

Adds a delay in order to wait for DHCP to actually terminate before setting the static IP configuration in ETH.