PowerHub Wakeup

#include <M5Unified.h>

int myIndex = 0;

void setup() {
  M5.begin();
  M5.Led.setBrightness(255);

  Serial.begin(115200);
  Serial.println("\n\nPowerHub Sleep & Wakeup Test");
  delay(1000);
}

void loop() {
  myIndex++;
  Serial.printf("%d ", myIndex);
  M5.Led.setAllColor(TFT_WHITE);
  M5.Led.display();
  delay(200);

  if (myIndex % 20 == 0) {
    M5.Led.setAllColor(TFT_BLACK);
    M5.Led.display();

    M5.Power.timerSleep(5);  // in seconds
    // M5.Power.deepSleep(5000000, false);  // in microseconds
    // M5.Power.lightSleep(5000000, false);  // in microseconds
  }

  if (myIndex >= 1000) {
    myIndex = 0;
  }
}