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Arduino Quick Start

2. Devices & Examples

5. Extensions

6. Applications

StackChan Wakeup

API and example programs for StackChan sleep and wakeup functionality.

Sample Program

Build Requirements

  • M5Stack board manager version >= 3.2.2
  • Board option = M5CoreS3
  • M5Unified library version >= 0.2.11
cpp
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#include <M5Unified.h>
void setup(void) {
    auto cfg = M5.config();
    M5.begin(cfg);
    M5.Display.setTextColor(GREEN);
    M5.Display.setTextDatum(middle_center);
    M5.Display.setFont(&fonts::FreeSerifItalic18pt7b);
    M5.Display.setTextSize(1);
    M5.Display.drawString("Touch", M5.Display.width() / 2,
                              M5.Display.height() / 2 - 60);
    M5.Display.drawString("to sleep", M5.Display.width() / 2,
                              M5.Display.height() / 2 - 20);
    M5.Display.drawString("After 5s", M5.Display.width() / 2,
                              M5.Display.height() / 2 + 20);
    M5.Display.drawString("Wakeup", M5.Display.width() / 2,
                              M5.Display.height() / 2 + 60);
}
void loop(void) {
    M5.update();
    if (M5.Touch.getCount() && M5.Touch.getDetail(0).wasClicked()) {
        M5.Power.timerSleep(5);
        // M5.Power.timerSleep(const rtc_time_t& time);
        // M5.Power.timerSleep(const rtc_date_t& date, const rtc_time_t&
        // time);
        // M5.Power.powerOff(); shutdown
    }
}

After flashing successfully, you can trigger sleep mode by touching the StackChan screen. When you tap the screen, the device will enter sleep mode and automatically wake up after 5 seconds.

API

The StackChan power management section utilizes the Power_Class from the M5Unified library. For more related APIs, refer to the documentation below:

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