void setup() {
  // put your setup code here, to run once:
  Serial1.begin(115200);
  Serial1.println("Hello, Raspberry Pi Pico!");
}

void loop() {
  // put your main code here, to run repeatedly:

}
BOOTSELLED1239USBRaspberryPiPico©2020RP2-8020/21P64M15.00TTT