Hi,
I am using an esp32 module, when using wifi(connecting and going to sleep) and wake up trigger by RTC_IO and timer, I get a consumption of 70uA during sleep mode.
When using only WiFi and timer or only timer and RTC wake up, current draw during sleep is ~5uA.
What could cause this diffrence and how can I fix it?
#include <WiFiClientSecure.h>
#define EXTERNAL_BUTTON_PIN 25
#define TIME_TO_SLEEP_SEC 10
const char* ssid = "";
const char* password = "";
String deviceID;
void setup() {
powerSetup();
connectToWifi();
}
void loop() {
sleepLauncher();
}
void connectToWifi() {
WiFi.begin(ssid, password);
Serial.print("Connecting");
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("Connected to WiFi");
}
void sleepLauncher() {
#define GOTOSLEEPTIME 5 * 1000
static unsigned long goToSleepTime = 0;
if ( millis() - goToSleepTime > GOTOSLEEPTIME ) {
goToSleep();
}
}
void powerSetup() {
#define uS_TO_S_FACTOR 1000000ULL
pinMode(EXTERNAL_BUTTON_PIN,OUTPUT);
Serial.begin(115200);
Serial.println("Wake up test");
//esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP_SEC * uS_TO_S_FACTOR);
esp_sleep_enable_ext0_wakeup(GPIO_NUM_25, LOW);
wakeUpHandler();
}
void goToSleep() {
digitalWrite(EXTERNAL_BUTTON_PIN,HIGH);
gpio_hold_en(GPIO_NUM_25);
Serial.println("Going to sleep now");
Serial.flush();
esp_deep_sleep_start();
}
void wakeUpHandler(){
esp_sleep_wakeup_cause_t wakeup_reason;
wakeup_reason = esp_sleep_get_wakeup_cause();
switch(wakeup_reason)
{
case 1: Serial.println("Wakeup caused by external signal using RTC_IO"); break;
case 2:
Serial.println("Wakeup caused by external signal using RTC_CNTL");
break;
case 3:
break;
case 4:
Serial.println("Wakeup caused by timer");
break;
case 5:
Serial.println("Wakeup caused by touch trigger");
break;
default:
Serial.println("Wakeup was not caused by deep sleep");
break;
}
}