StickC-Plus2 Battery

#include "M5StickCPlus2.h"
 
void setup() {
    auto cfg = M5.config();
    StickCP2.begin(cfg);
    StickCP2.Display.setRotation(1);
    StickCP2.Display.setTextColor(GREEN);
    StickCP2.Display.setTextDatum(middle_center);
    StickCP2.Display.setTextFont(&fonts::Orbitron_Light_24);
    StickCP2.Display.setTextSize(1);
}
 
void loop() {
    StickCP2.Display.clear();
    int vol = StickCP2.Power.getBatteryVoltage();
    StickCP2.Display.setCursor(10, 30);
    StickCP2.Display.printf("BAT: %dmv", vol);
    delay(1000);
}