Would be awesome if wake on touch input could be included sometime in the future?
I would think modifying SLEEP value [, pin, level] so that level could be either 0,1 (as before) or the threshold (as in the touchAttachInterrupt(pin, callback, Threshold) ESP-Arduino function). It would be even more awesome if BAS.RESETREASON could reflect ESP_SLEEP_WAKEUP_TOUCHPAD and also perhaps if there were a function or a BAS variable that could tell you which pin caused the wakeup, either touch or otherwise?
Of course, just a request and only if you consider it useful and have the time
So, in addition to wake from touch, I've encountered a situation where I could also benefit from wake on multiple RTC pins. I found a nice article on this topic at https://lastminuteengineers.com/esp32-d ... up-sources with some code examples using Arduino IDE. While that is useful, of course I'd much prefer to do this from Annex32.
Seeing that my previous feature request for wake on touch did not manage to elicit even a single comment, it's obviously not something that many people thought might be useful. Being able to wake from multiple pins might perhaps be of more value?
As always, of course it is just a request and totally subject to whether you consider it to be useful enough to spend time on? But it would make my day for battery projects...
I've just updated the version 1.52.2 for the ESP32 that contains the syntax changes as you suggested for the capacitive touch.
In the command SLEEP value [, pin, level], if level > 1 this will enable the capacitive touch with "level" representing the threshold value.
In addition, I included a new function, BAS.WAKEUPREASON that returns the cause of the wakeup from deep sleep.
This is an extract of the coming help:
SLEEP value [, pin, level]
Optionally, this command can be also used to wake up the module using the capacitive touch on an input pin.
In this case the command SLEEP maintains the same syntax but level defines the threshold value for the pin.
Only the following pins can be used for that purpose (capacitive touch) : 0, 2, 4, 12, 13, 14, 15, 27 32, 33
Level must be > 1 to enable the touch (0 and 1 are reserved for the wake up on Low or Wake up on High).
Example
' Sleeps for 3600 seconds (1 Hour) or until the pin 15 is touched
SLEEP 3600, 15, 40 ' Threshold at 40
BAS.WAKEUPREASON
Returns the reason for the wake up if the module was in deep sleep
The reason is defined in the table below
VALUE | REASON
------------------
0 Unknown
1 N/A
2 EXT0 - Input Pin
3 EXT1
4 Timer
5 Touch - Touch pin
6 ULP
7 GPIO (in light sleep only)
8 UART (in light sleep only)
9 WIFI (in light sleep only)
10 COCPU interrupt
11 COCPU crash
12 BT (in light sleep only)
. Thanks Francesco!