I am using Arduino UNO to record the data from Garmin GPS 18x-5Hz LVC (GPS Logger Shield Hookup Guide - learn.sparkfun.com). The wiring between the GPS and Arduino is :
GPS --> Arduino
Pin2 (Red (Vin)) --> 5V
Pin3 (Black (GND) ) --> GND
Pin4 (White (Tx)) --> Pin9 (Rx)
Pin5 (Black (GND)) --> GND
Pin6 (Green (Rx)) --> Pin8 (Tx)
I connected all ground pins between Arduino and GPS (Page 9, Figure 3 in user manual: (https://static.garmin.com/pumac/GPS_18x_Tech_Specs.pdf).
I tested the device outdoor, however I got zero for each data (time, location, speed). The Tx light on Arduino board blinks (serial monitor), but the Rx light does not. It seems Arduino does not receive data from GPS. How can I solve this issue?
Thank you for your help in advance.