• 1
    Assemble the Sundial

    Assemble the Sundial by stacking an LCD1602 and a Neo-6M GPS shield onto an Arduino UNO. Confirm that the GPS shield’s RX and TX pins are connected to Arduino’s D2 and D3; adjust the gpsSerial object in code if needed.

  • 2
    Upload the sketch

    Upload the 00_naive.ino sketch to the Arduino.

  • 3
    Verify GPS is working

    While the Sundial remains connected to your computer, open the Serial Monitor in the Arduino IDE and verify that raw GPS sentences appear approximately once per second.