// Board: Adafruit Feather M0 #include #include #include "Adafruit_LEDBackpack.h" // "Adafruit LED Backpack Library" v1.5.0 Adafruit_7segment matrix = Adafruit_7segment(); void show(int num) { matrix.print(num, DEC); matrix.writeDisplay(); } void setup() { matrix.begin(0x70); Serial.begin(115200); // Serial.setDebugOutput(true); delay(1000); Serial.println(); Serial.println(); Serial.println("================"); Serial.println("BOOT UP"); show(99999); } void loop() { ; }