Touch Pins as Wake-up Source (ESP32 + Arduino series)

Wake the ESP32 from deep sleep by using the touch sensors. This is handy if you want to respond to someone touching your device and turning it on.
⚡️Other videos in this series:
• ESP32 + Arduino
(Everything you need to know about programming the ESP32 by using the Arduino Framework)
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[@zoomboom3003]

Hi thanks for the video
How do you do it for Arduino 328P?

[@DavePinnock]

Hi this was a great clear explanation and easy to understand thank you. One thing, as a complete newb to the ESP32 I would have liked to see a demo of the wire you attached to create a touch sensor? Is it really as simple as attaching any piece of wire to the pin??

[@simplyexplained]

In this case, yes!

[@bm830810]

How much current consumption increase should we expect when enabling touch in deep sleep?
thanks

[@pedroencina2439]

Hi, I need to send for example the temperature when I touch the sensor, and then goes to sleep, I have the topic in the loop funtion, how can I make this , i need send the value and then go to sleep, ? thanks

[@u1kim]

Hi, I have a practical application that requires code execution in the loop() before going into deep sleep. Is there a way to accomplish the touch sensor wake up inside the loop, like putting the touchAttachInterrupt in the setup and esp_sleep_enable_start in the loop? I've tried it and it doesn't seem to want to work.

[@jakubtecka6885]

Is there a way to disable touch pin wake up? I'm using a button and a timer for wake up, but somehow even without code for touch wake up my esp32 is immediately wake up by touch.

[@mashurshalehin4972]

is it possible to make esp remember some variables during deepsleep?

[@indyalx]

You can write to the flash and read it again after wakeup.