B4R Code Snippet [ESP32] DeepSleep until wake up by timer or button

Code for sending ESP32-family MCU into DeepSleep.
And checking the waking up by the counter saved into RTC-memory between sleep and wakes up.

Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'Public variables can be accessed from all modules.
  
End Sub

Public Sub Go_Sleep(ms As ULong)
    Log("Go deep sleep for ", ms, " msecs")
    Delay(1)
    esp32_DeepSleep(ms)
End Sub

Private Sub esp32_DeepSleep(ms As ULong)
    RunNative("deepSleep", ms)
End Sub

#if C
#include <esp_sleep.h>
#include <driver/rtc_io.h>

#define BUTTON_PIN GPIO_NUM_0

void deepSleep(B4R::Object* o) {
  // wake up by timer (msec)
  uint64_t sleep_time_us = o->toULong() * 1000;
  if(sleep_time_us > 0) {
    esp_sleep_enable_timer_wakeup(sleep_time_us);
  }
 
  #ifdef CONFIG_IDF_TARGET_ESP32
      // ESP32: use EXT0 (just single pin)
      esp_sleep_enable_ext0_wakeup(BUTTON_PIN, LOW);
  #elifdef defined(CONFIG_IDF_TARGET_ESP32S2) || defined(CONFIG_IDF_TARGET_ESP32C3) || defined(CONFIG_IDF_TARGET_ESP32S3)
      // ESP32-S2 / C3 / S3: use EXT1 (pins mask)
      uint64_t ext1_mask = 1ULL << BUTTON_PIN;
      //esp_sleep_enable_ext1_wakeup(ext1_mask, ESP_SLEEP_EXT1_WAKEUP_ANY_LOW);    OLD !
      esp_deep_sleep_enable_gpio_wakeup(ext1_mask, ESP_GPIO_WAKEUP_GPIO_LOW);
  #endif

  // going To Deep Sleep
  esp_deep_sleep_start();
 }
#end if

'esprtc_livecounter module name

Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'Public variables can be accessed from all modules.
    Public LiveCounter As ULong
End Sub

Sub Read_livecounter
    RunNative("rtccount", Null)
    Log("LiveCounter = " , LiveCounter)
    'testing
    Delay(2000)
    others.Go_Sleep(2000)    'RunNative("esprestart", Null)
End Sub


#if C
static RTC_NOINIT_ATTR ulong counter = 0;

void rtccount(B4R::Object* u) {
esp_reset_reason_t reason = esp_reset_reason();
if ((reason != ESP_RST_DEEPSLEEP) && (reason != ESP_RST_SW))
{
  counter = 0;
}
counter++;
b4r_esprtc_livecounter::_livecounter = counter;
}

void esprestart(B4R::Object* u) {
esp_restart();
}

#end if

Result of the looped sleeps and wakes (manual COM-port connecting is required after each wake, @Erel , maybe checkbox option for "auto re-connecting" ?):

Writing at 0x000513be... (100 %)
Wrote 297936 bytes (161659 compressed) at 0x00010000 in 2.3 seconds (effective 1040.5 kbit/s)...
Hash of data verified.
Leaving...
Hard resetting with RTC WDT...
New upload port: COM13 (serial)
AppStart
LiveCounter = 1
Go deep sleep for 2000 msecs
AppStart
LiveCounter = 2
Go deep sleep for 2000 msecs
AppStart
LiveCounter = 3

NOTE: #ifdef does not work inside Inline-C ! No solution yet.

 

[peacemaker]

Wait, do not try...
After this my development the XIAO esp32c3 board cannot be normalized.

Hash of data verified.

Leaving...
Hard resetting with RTC WDT...

I cannot revert it back to "Hard resetting via RTS pin."
It's auto-reconnecting to USB each 2 seconds...

upd. but classical esp32 works OK...

 

[peacemaker]

I cannot revert it back to "Hard resetting via RTS pin."
It's auto-reconnecting to USB each 2 seconds...

upd. but classical esp32 works OK...

Solved: the thin USB-cable is the reason of voltage drop and the MCU cannot run well when activates WiFi and other load in addition to calculations...

 

[peacemaker]

Note also that in the latest Arduino SDK for esp32-C3 at least - already no function "esp_sleep_enable_ext1_wakeup" as was in old versions.
Working for new esp32 models:

esp_deep_sleep_enable_gpio_wakeup(ext1_mask, ESP_GPIO_WAKEUP_GPIO_LOW);

But for classic esp32 - this new function is not available, old is to be used

esp_sleep_enable_ext0_wakeup(BUTTON_PIN, LOW);

But now trouble is that #ifdef in Inline-C does not work.