Unlike the Wi-Fi-based location approach covered earlier, the NEO-6M module offers real, high-accuracy GPS positioning that's completely independent of any internet connection, making it the better choice for genuine route-tracking projects such as drones or tracking vehicles.
Components needed
An Arduino Uno board, a NEO-6M GPS module (with an external antenna and internal memory to retain the last known satellite data), an indicator LED, and connecting wires.
Wiring it up
The module operates between 3 and 5V and communicates over a TTL serial connection at 9600 baud. Since the Arduino Uno's main serial pins (0 and 1) are normally used for uploading code and talking to the computer, it's best to use the SoftwareSerial library to create an extra serial port on two other digital pins (such as 3 and 4); the module's TX pin connects to the software RX pin, and its RX pin connects to the software TX pin.
How it works
The NEO-6M module continuously sends text sentences in the standard NMEA format containing location, time, and satellite-count information. The TinyGPS++ library handles parsing these complex text sentences, extracting latitude and longitude values ready to use directly in the code. Once the current coordinates are obtained, the code can calculate the distance to a predefined destination point using the library's built-in functions, automatically lighting an LED when the device comes within a certain range of that point — a basic principle used in "arrival alert" (geofencing) applications.
You can find the NEO-6M GPS module at Juthour Tech.
اترك تعليقا