StackChan Button

API and example programs for StackChan button input functionality.

Sample Program

Build Requirements

• M5Stack board manager version >= 3.2.2
• Board option = M5CoreS3
• M5Unified library version >= 0.2.11

#include <M5Unified.h>

void setup(void)
{
    auto cfg = M5.config();
    M5.begin(cfg);

    M5.Display.setTextColor(RED);
    M5.Display.setTextDatum(middle_center);
    M5.Display.setFont(&fonts::Orbitron_Light_24);
    M5.Display.setTextSize(1);
    M5.Display.drawString("Touch Button Test", M5.Display.width() / 2, 15);
}

void loop(void)
{
    M5.update();

    if (M5.BtnPWR.wasClicked()) {
        M5.Display.fillRect(0, 40, M5.Display.width(), 70, BLACK);
        M5.Display.drawString("Btn PWR", M5.Display.width() / 2, M5.Display.height() / 2 - 30);
    }
}

After flashing successfully, you can trigger an event by pressing the StackChan power button (BtnPWR). When you click the button, the device will detect the event and display the text "Btn PWR" on the screen.

Notes

The physical button (BtnPWR) state reading on StackChan relies on the power management chip. Currently, only wasClicked and wasHold are available for normal use.