// Test for I2C read

#include <Wire.h>

#define __SERIAL Serial1

void setup() 
{
  __SERIAL.begin(115200);
  __SERIAL.print("I2C_SDA=");
  __SERIAL.println(I2C_SDA);
  __SERIAL.print("I2C_SCL=");
  __SERIAL.print(I2C_SCL);

  Wire.begin();
  Wire.requestFrom(0x68,1);
}

void loop() 
{
  delay(10);
}
BOOTSELLED1239USBRaspberryPiPico©2020RP2-8020/21P64M15.00TTT
GND5VSDASCLSQWRTCDS1307+
D0D1D2D3D4D5D6D7GNDLOGIC