Arduino Quick Start
Fire Wakeup related APIs and example program.
#include <M5Unified.h>
void setup(void) {
auto cfg = M5.config();
M5.begin(cfg);
M5.Display.setTextDatum(middle_center);
M5.Display.setTextFont(&fonts::FreeSerifBold9pt7b);
M5.Display.setTextSize(1);
M5.Display.drawString("Press BtnA", M5.Display.width() / 2, M5.Display.height() / 2 - 20);
M5.Display.drawString("to Sleep 5s", M5.Display.width() / 2, M5.Display.height() / 2 + 20);
}
void loop(void) {
M5.update();
if (M5.BtnA.wasPressed()) {
M5.Display.clear();
M5.Display.drawString("Sleep 5s", M5.Display.width() / 2, M5.Display.height() / 2 + 20);
M5.Power.timerSleep(5);
}
}
Since there is no independent RTC chip, The Fire cannot use RTC-related functions and can only implement second-level timed wake-up as demonstrated in the example program.
The example program runs as follows:
Fire power section uses the Power_Class
from the M5Unified library. For more related APIs, please refer to the documentation below: