esp-dsp: master 7cc5073
esp-face: master 420fc7e
esp-rainmaker: f1b82c7
esp32-camera: master 2dded7c
esp_littlefs: master d268e18

Added method to change the ledc PWM frequence programmatically
Returning frequency from ledcChangeFrequency

Hey guys,
so I wanted to do a BtClassic Discovery without the need to call connect
and to list all found devices on a display and continue work with that list.

I wasn't capable to test the example code with my file structure, but I did use the discovery already in some different situations.

However when I noted that the Bluedroid stack won't let me enforce an RfComm SPP connection to a GPS Device (Skytraxx 2 plus, I guess its interface is built so simple that it doesn't advertise its SPP over SDP), I will probably have to switch to BtStack (BlueKitchen) and stop on this side meanwhile

* FS::name() returns the item name as in Arduino SD

Added method FS::path() that returns the full path

* Adjust examples

Add BLE characteristic callbacks overloads with esp_ble_gatts_cb_param_t* param.
Example:

class BleCharactCallback : public BLECharacteristicCallbacks
{
    void onRead(BLECharacteristic *pCharacteristic, esp_ble_gatts_cb_param_t *param)
    {
        auto addr = param->read.bda;
        ESP_LOGV(TAG, "Device " ESP_BD_ADDR_STR " request data", ESP_BD_ADDR_HEX(addr));
    }
    void onWrite(BLECharacteristic *pCharacteristic, esp_ble_gatts_cb_param_t *param)
    {
        auto addr = param->write.bda;
        ESP_LOGV(TAG, "Device " ESP_BD_ADDR_STR " transmit data", ESP_BD_ADDR_HEX(addr));
    }
};

The current implementation has a getMTU function which returns the mtu sent in a message.

This function allows you to set the MTU value on the connected device, it first sets the MTU locally by calling esp_ble_gatt_set_local_mtu. It then calls esp_ble_gattc_send_mtu_req to have the connected device also change its MTU size.

Note, maxOpenFiles parameter is unused but kept for compatibility.

workaround for #5043. There is a timing issue with HardwareSerial::end. I'm not sure what is hung, but it should be possible to see this in jtag, as it does cause a reboot if you let it. The delay needs to be before you detach the device!?

This adds support for the KSZ8081 ethernet phy.
Only the IDF 4+ specific code is modified, as the phy support was only
added recently:
espressif/esp-idf@aecfbf96

done on behalf of @Ladyada, this PR does:

Add Adafruit FunHouse and upcoming Adafruit Feather Esp32s2
Update Adafruit magtag and metro esp32s2 to have tinyuf2 as factory app
Also modify platform.txt as discussed in adafruit#2 + adafruit#3 + adafruit#4 to add support for
Board/variant partition.csv, bootloader.bin ( priority is user sketch > variant > build.parition/boot )
upload.extra_flags to optionally flash tinyuf2 as factory application
Remove duplicated parameter in running python script in linux and windows
Please review and let me know if you want any changes.

Notes: tinyuf2 is a uf2 bootloader for multiple platforms. For esp32s2, it is an factory app to perform uf2 firmware update.

Fixes: https://github.com/espressif/arduino-esp32/issues/5005

fixes: https://github.com/espressif/arduino-esp32/issues/5000

This is very much still work in progress and much more will change before the final 2.0.0

Some APIs have changed. New libraries have been added. LittleFS included.
Co-authored-by: NSeon Rozenblum <seonr@3sprockets.com>
Co-authored-by: NMe No Dev <me-no-dev@users.noreply.github.com>
Co-authored-by: Ngeeksville <kevinh@geeksville.com>
Co-authored-by: NMike Dunston <m_dunston@comcast.net>
Co-authored-by: NUnexpected Maker <seon@unexpectedmaker.com>
Co-authored-by: NSeon Rozenblum <seonr@3sprockets.com>
Co-authored-by: NmicroDev <70126934+microDev1@users.noreply.github.com>
Co-authored-by: Ntobozo <tobozo@users.noreply.github.com>
Co-authored-by: Nbobobo1618 <bobobo1618@users.noreply.github.com>
Co-authored-by: Nlorol <lorolouis@gmail.com>
Co-authored-by: Ngeeksville <kevinh@geeksville.com>
Co-authored-by: NLimor "Ladyada" Fried <limor@ladyada.net>
Co-authored-by: NSweety <switi.mhaiske@espressif.com>
Co-authored-by: NLoick MAHIEUX <loick111@gmail.com>
Co-authored-by: NLarry Bernstone <lbernstone@gmail.com>
Co-authored-by: NValerii Koval <valeros@users.noreply.github.com>
Co-authored-by: N快乐的我531 <2302004040@qq.com>
Co-authored-by: Nchegewara <imperiaonline4@gmail.com>
Co-authored-by: NClemens Kirchgatterer <clemens@1541.org>
Co-authored-by: NAron Rubin <aronrubin@gmail.com>
Co-authored-by: NPete Lewis <601236+lewispg228@users.noreply.github.com>

Previously sketches or examples that had spaces anywhere in their absolute
path caused a total build failure. By adding quotes around the path in
platform.txt, they now build correctly
Co-authored-by: NMe No Dev <me-no-dev@users.noreply.github.com>

esp-face: master 420fc7e
esp32-camera: master 488c308

Fixes: https://github.com/espressif/arduino-esp32/issues/3218

esp-face: master 420fc7e
esp32-camera: master 488c308
FreeRTOS Static

Ports: https://github.com/esp8266/Arduino/pull/5506/commits/4d3850e87ee2cdd7ee4a79fb791a4ebbaa522487

Fixes: https://github.com/espressif/arduino-esp32/issues/4960

This enables customizing HTTP headers which adds some extra flexibility.
This does not break anything of course because this change introduces a new constructor with a new additional HTTPClient argument for HTTPUpdate class.

Fixes: https://github.com/espressif/arduino-esp32/issues/4778

Fixes: https://github.com/espressif/arduino-esp32/issues/4952

Fixes: https://github.com/espressif/arduino-esp32/issues/4931

In some use cases getting rssi signal from one channel is more stable (less variance) than rssi from the three advertising channels.

This change allows you to specify which channels are used to advertise.

Add some debug and allow building from a branch named `pages`

This is a mirror of a change in esp8266 needed to update with a url that redirects.

Fixes: https://github.com/espressif/arduino-esp32/issues/4949

* Update debian_ubuntu.md

ERROR: This script does not work on Python 2.7 The minimum supported Python version is 3.6. Please use https://bootstrap.pypa.io/2.7/get-pip.py instead.

* Update debian_ubuntu.md
Co-authored-by: NMe No Dev <me-no-dev@users.noreply.github.com>

added scan_method = WIFI_ALL_CHANNEL_SCAN into wifi config in WiFi.begin() to let the scan choose the nearest / strongest AP in case that there are multiple APs with the same SSID (#4947)

In case you have multiple APs with the same SSID/password and WiFi.begin(ssid, pwd) is called, ESP32 defaults to connect to THE FIRST AP FOUND matching ssid - according to:
https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/network/esp_wifi.html#_CPPv418wifi_scan_method_t

This can cause situations that ESP32 is trying to connect to AP which is far away from it (weak signal) even there is AP close to it, just as in my house - I have AP on channel 6 which is in the 1st floor (quite far from room where I do the programming) and AP on channel 13 in the same room I do the programming (which is in the 2nd floor) - result: ESP32 is trying to connect to the AP on channel 6 because it finds it first and never try the AP on channel 13 in the same room, result of this is very unreliable WiFi connection.

When scan_method is set to WIFI_ALL_CHANNEL_SCAN, ESP32 scans all channels and choose the nearest / strongest AP (matching the ssid of course) as expected - result is no connection problems at all.

Therefore I propose adding this parameter into WiFi.begin, connection problems as described above are quite confusing (especially for beginners), I can imagine that for example Schools there are usually using mutliple APs and this can cause intermittent connection problems without obvious reason.

Fixes: https://github.com/espressif/arduino-esp32/issues/4935