Comments on: ESP32 Touch Wake Up from Deep Sleep

By: Sara Santos

Sara Santos — Tue, 15 Aug 2023 13:42:38 +0000

In reply to salvador.

Hi.
Yes.
Take a look at our telegram tutorials: https://randomnerdtutorials.com/?s=telegram
Regards,
Sara

By: salvador

salvador — Tue, 15 Aug 2023 09:27:27 +0000

podria enviar un mensaje usando telegram al despertar ?
gracias

By: mvis

mvis — Mon, 24 Apr 2023 04:38:44 +0000

In reply to Gerstl Reinhold.

see this for a partial explanation. still not fixed, imo

https://github.com/espressif/arduino-esp32/issues/7150

By: Gerstl Reinhold

Gerstl Reinhold — Mon, 25 Jul 2022 07:04:11 +0000

Hi
The Sketch work on ESP32 S2 bat not on ESP32 S3
After going sleep it wake up instantly witch error:

Boot number: 2
Wakeup caused by touchpad
E (1021) TOUCH_SENSOR: touch_pad_get_wakeup_status(222): Touch channel error

assert failed: esp_sleep_get_touchpad_wakeup_status sleep_modes.c:931 (ret == ESP_OK && “wakeup reason is RTC_TOUCH_TRIG_EN but SENS_TOUCH_MEAS_EN is zero”)

Wy thir error?

By: Hadi

Hadi — Thu, 29 Jul 2021 11:54:24 +0000

hi
can we use esp32 as a touch key ?
place a pad on pcb and then put a glass (3mm) on it and then touch the area above pad and sense the touch .
Is it possible ?

By: Michel MORICE

Michel MORICE — Sat, 01 May 2021 17:35:41 +0000

Hi Sara
Thanks for all theses informations.
I’ve a problem when I use touch pins with interrupts with an ESP32 TTGO :
as soon as i touch a pin the ESP re-starts like a boot.
Do you know this disorder?

By: Sara Santos

Sara Santos — Tue, 23 Feb 2021 11:38:08 +0000

In reply to Daniel Crane.

Hi.
With the DOIT board, we were never able to get as low as 10uA.
We got around 9 to 11mA.
To get as low as 10uA, you need to use a bare chip.
For example, in this project with the ESP8266 bare chip, the power consumption is super low: https://randomnerdtutorials.com/low-power-weather-station-datalogger-using-esp8266-bme280-micropython/
Regards,
Sara

By: Daniel Crane

Daniel Crane — Mon, 22 Feb 2021 22:42:11 +0000

This is nice Sara (I presume), thanks!

Have you (or anyone) had any testing with the current draw to see what the deep sleep actually pulls?
I’ve read as low as 10uA, but curious how that looks with the touch sensor enabled.

By: Sara Santos

Sara Santos — Fri, 10 Apr 2020 17:28:23 +0000

In reply to david Molina. Great!

By: david Molina

david Molina — Fri, 10 Apr 2020 15:04:31 +0000

In reply to Sara Santos. I think it worked, not sure how to tell if its really sleeping but it displayed the temperature :) thank you so much!