Aidan Cleary / Mbed 2 deprecated ESlab3

Lab3 Final copy

Dependencies:   mbed MMA7660

main.cpp@5:af5a6c9606e6, 2021-05-03 (annotated)

Committer:
hellohello
Date:
Mon May 03 17:40:07 2021 +0000
Revision:
5:af5a6c9606e6
Parent:
4:c3bb91b3b992
Child:
6:25a7f695e570
Lab 3 Final Copy

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hellohello 3:9ea256470c8a 1
hellohello 3:9ea256470c8a 2 //embedded systems lab question 3 Aidan Cleary T00209564
hellohello 3:9ea256470c8a 3 //Lab 3: Digital sensors & equations in C
hellohello 3:9ea256470c8a 4
hellohello 5:af5a6c9606e6 5 #include "mbed.h"//preprosser command
hellohello 5:af5a6c9606e6 6 #include "MMA7660.h"//preprocesser command
hellohello 5:af5a6c9606e6 7
hellohello 5:af5a6c9606e6 8 #define PI 3.14159265//PI defined
Sissors 0:bd0546063b0a 9
hellohello 5:af5a6c9606e6 10 Serial pc(USBTX,USBRX);//serial transmission to pc via USBTX, USBRX
hellohello 5:af5a6c9606e6 11 MMA7660 MMA(p28,p27);//IC2 pins associated with accelerometer
Sissors 0:bd0546063b0a 12
hellohello 5:af5a6c9606e6 13 float calculateAngle(float x,float y,float z)
hellohello 5:af5a6c9606e6 14 {
hellohello 5:af5a6c9606e6 15 float angle = 0;
hellohello 5:af5a6c9606e6 16 // calculate the angle from the formula given in the instructions
Sissors 0:bd0546063b0a 17
hellohello 5:af5a6c9606e6 18 angle = (y*y) + (z*z);//bottom of the division line
hellohello 5:af5a6c9606e6 19 angle = sqrt (angle);//square root
hellohello 5:af5a6c9606e6 20 angle = x/angle;
hellohello 5:af5a6c9606e6 21 angle = atan (angle);//arctan of angle
hellohello 5:af5a6c9606e6 22 angle = angle *180/PI; //radians to degrees!
hellohello 5:af5a6c9606e6 23 return angle;
hellohello 5:af5a6c9606e6 24 }
hellohello 3:9ea256470c8a 25
hellohello 5:af5a6c9606e6 26 int main() //main program
hellohello 5:af5a6c9606e6 27 {
hellohello 5:af5a6c9606e6 28 while (1) {
hellohello 5:af5a6c9606e6 29 pc.printf(" X%f Y%f Z%f angle%.2f degrees\r", MMA.x(),
hellohello 5:af5a6c9606e6 30 MMA.y(), MMA.z(), calculateAngle(MMA.x(), MMA.y(), MMA.z()));
hellohello 5:af5a6c9606e6 31 //i have used \r to repeat the function and keep the tera term tidy
hellohello 5:af5a6c9606e6 32 wait(1);//wait 1 second
Sissors 0:bd0546063b0a 33 }
hellohello 5:af5a6c9606e6 34 }