gistfile1.txt

/*======= ========= ========= ========= ========= ========= ========= ========= 
    Project    : ESProMatrix-USBPP
    File       : ESProMatrix-USBPP.ino
    Date       : 2019/05/01
    Version    : 0.0.1
    Author     : Samui Young
    Company    : Chipfans Technology Co.,Ltd.
    MCU        : NodeMCU ESP32-S
    Details    : Demo of USB power port
--------- --------- --------- --------- --------- --------- --------- ---------
    Notice     : 
                 - when use Serial function :
                   . 由於USB Power用了GPIO 1,3是Serial的TX RX，所以使用USB Power時，無法使用Serial
                   . must follow the following process
                     . Serial.end();
                     . pinMode(UsbPP2, INPUT);
                     . pinMode(UsbPP2, OUTPUT);
========= ========= ========= ========= ========= ========= ========= ========*/

int UsbPP1 = 1;  // P1: GPIO1
int UsbPP2 = 3;  // P1: GPIO3

void setup() {

  pinMode(UsbPP1, OUTPUT);
  pinMode(UsbPP2, OUTPUT);
  for (int i = 0 ; i < 3 ; i++)
  {
    digitalWrite(UsbPP1, LOW);
    digitalWrite(UsbPP2, LOW);
    delay(500);
    digitalWrite(UsbPP1, HIGH);
    digitalWrite(UsbPP2, HIGH);
    delay(500);
  }
  digitalWrite(UsbPP1, LOW);
  digitalWrite(UsbPP2, LOW);
} 

void loop() {
//兩秒一次更換開關
  digitalWrite(UsbPP1, HIGH);
  digitalWrite(UsbPP2, LOW);
  delay(2000);

  digitalWrite(UsbPP1, LOW);
  digitalWrite(UsbPP2, HIGH);
  delay(2000);
}