Li Junru

Please try with all interfaces number.

> once I find the two ports number, how to config CONFIG_MODEM_USB_ITF in codes? You can run `idf.py menuconfig` to modify the value of `CONFIG_MODEM_USB_ITF` in the configuration menu, but...

> My module ML307R DL doesn't support at command: ATD_99_**1# , but it does support USB, and what else command I can use instead? Thanks. `ATD_99_**1#` is a standard AT...

LGTM

Sorry for the late reply. The custom button can be created using the factory mode of the new button component. You can refer to this file: [[custom_button_test.c](https://github.com/espressif/esp-iot-solution/blob/master/components/button/test_apps/main/custom_button_test.c)](https://github.com/espressif/esp-iot-solution/blob/master/components/button/test_apps/main/custom_button_test.c)

LGTM!

Could you provide the circuit schematic for your matrix keyboard?

Please use this component：https://components.espressif.com/components/espressif/keyboard_button/versions/1.0.0. Docs: https://docs.espressif.com/projects/esp-iot-solution/en/latest/input_device/keyboard_button.html

导致这个的原因是 baseline 一直往上走，与当前值误差越来越小，最后触发了抬手。touch 支持长按有时长限制，这个时长的限制有一个参数可以调节。并且一般不会直接触摸 touch 的引脚，会加一层隔离，直接触摸的会会导致值跳变很大。 后面会加入一个上电校准的机制，不会让 baseline 上涨的太离谱。可以等待组件更新

Please provide the path to the example code you are using. Are you using the `usb_otg` development board as a USB host to connect to a keyboard? This development board...