#include <Wire.h>

#define PICO_ADDRESS 0x10

void setup() {
  Wire.begin(PICO_ADDRESS); // Initialize I2C as slave
  Wire.onReceive(receiveEvent); // Register receive event
  Serial.begin(9600); // Initialize serial communication
}

void loop() {
  // Do something in the loop if needed
}

void receiveEvent(int numBytes) {
  while (Wire.available() > 0) {
    // Read received data byte by byte
    char receivedByte = Wire.read();
    Serial.println(receivedByte);
  }
}