Diff: main.cpp

Revision:

0:8419f38ed886

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Oct 28 22:16:36 2022 +0000
@@ -0,0 +1,67 @@
+//Michael Antonucci
+//Last modified Oct. 27, 2022
+//Assignment 4, Exercise 1: Create a working code to parse NMEA inputs into human-readable data
+#include "mbed.h"
+
+Serial pc(USBTX, USBRX);
+
+char dataque[100]; //calls for an array of 100 characters long with the name "dataque"
+char header[5]; //calls for an array of 5 characters long with name "header"
+float lat;   //creates float "lat" for latitude
+float longi; //creates float "longi" for longitude
+char ns[1];  //creates array of 1 character with name "ns"
+char ew[1]; //creates array of 1 character with name "ew"
+float elevation; //creates float "elevation"
+char checksum[2]; //calls for an array of 2 characters long with name "checksum"
+int seconds; //creates integer "seconds" for time
+float xaccel; //creates float "xaccel" for x acceleration
+float yaccel; //creates float "yaccel" for y acceleration
+float zaccel; //creates float "zaccel" for z acceleration
+float temp; //creates float "temp" for temperature
+int main() { //starts main code
+    while(1) {
+        if (pc.readable()) { 
+        pc.scanf("%s",dataque); 
+        sscanf(dataque,"$%5s",header);
+            if (!strcmp(header,"GPRMC")) { //if the header is "GPRMC"
+             sscanf(dataque,"$%5s,%d,%f,%1s,%f,%1s,%f,*%2s", //reassigns variables to data
+                             header,&seconds,&lat,ns,&longi,ew,&elevation,checksum);
+             pc.printf("GPS NMEA string recieved:\r\n"); //prints type of message
+             pc.printf("Time: %d seconds\r\n",seconds); //prints time
+             pc.printf("Latitude: %f degrees %s",lat,ns); //prints latitude
+             pc.printf("Longitude: %f degrees %s\r\n",longi,ew); //prints longitude
+             pc.printf("Elevation: %f m\r\n",elevation); //prints elevation
+             pc.printf("Checksum Value: %s",checksum); //prints checksum value
+             }
+            else if (!strcmp(header,"IMUPO")) { //if the header is "IMUPO", print a message
+             sscanf(dataque,"$%5s,%d,%f,%f,%f,*%2s", //reassigns variables to data
+                             header,
+                             &seconds,
+                             &xaccel,
+                             &yaccel,
+                             &zaccel,
+                             checksum);
+             pc.printf("Motion Message NMEA string recieved:\r\n"); //prints type of data
+             pc.printf("Time: %d seconds\r\n",seconds); //prints time
+             pc.printf("X-Acceleration: %f m/s^2 \r\n",xaccel); //prints x acceleration
+             pc.printf("Y-Acceleration: %f m/s^2 \r\n",yaccel); //prints y acceleration
+             pc.printf("Z-Acceleration: %f m/s^2 \r\n",zaccel); //prints z acceleration
+             pc.printf("Checksum Value: %2s \r\n",checksum); //prints checksum value
+             }
+            else if (!strcmp(header,"TEMPE")) { //if the header is "TEMPE", print a message
+             sscanf(dataque,"$%5s,%d,%f,*%2s", //reassigns variables to data
+                            header,
+                            &seconds,
+                            &temp,
+                            checksum);
+             pc.printf("Temperature NMEA string recieved:\r\n"); //prints type of data
+             pc.printf("Time: %d seconds\r\n",seconds); //prints time
+             pc.printf("Temperature: %f degrees Celcius\r\n",temp); //prints temperature
+             pc.printf("Checksum Value: %2s \r\n",checksum); //prints checksum value
+             }
+            else { //if the header is not one of those three, respond with an error message
+             pc.printf("NOT A VALID NMEA INDICATOR \r\n"); //shows that error is associated with header format
+             }
+            }
+        }
+    }
\ No newline at end of file