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Nichsen / GPS_SpeedTracker

GPS Speed Tracker to meassure maximum speed of e.g. RC Planes and Drones
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No sats or reading #1

Open KnuckleUpFPV opened 4 years ago

KnuckleUpFPV commented 4 years ago

No matter what I do the gps doesnt communicate with the arduino nano. I know the gps has a lock, because it has a red blinking light when it establishes a lock.

istedman commented 3 years ago

The initialisation code has a bug, it resets the one of the GPS serial pins as an output.

Change this code from: #define OLED_RESET 4 Adafruit_SSD1306 display(OLED_RESET); //Connection to I2C SCL and SDA!

To #define OLED_RESET -1 Adafruit_SSD1306 display(OLED_RESET); //Connection to I2C SCL and SDA! As you don't need a dedicated reset pin for a display with 4 pins.

As pin 4 has previously been mapped as a GPS serial pin.

I swapped it to use pin 4 as Rx and pin 3 as TX, thus allowing me to test with the example code in the library, hence I found the bug, after some head scratching.