I am working on a quadcoppter and am having trouble trying to parse the output that I am getting from the sensor. This is the code that I am trying to get to work but the Arduino compiler is saying that i can't convert and int to a string unfortunatley I am trying to get the string to convert to an int.
Code:
//string that will be processed is this //Ax=-209 Ay=5 Az=1116 | Gx=7 Gy=0 Gz=7 | -31 233 -433 Headings 100.20 void setup() {
I can't get my 'Front End' view model's constructor to be called. If i remove my dependency from the mvvm-light framework and use MSDN mvvm paterns then the constructor is called. What am i doing wrong. It seem like there is a data context binding issue between my XMAL and my view model backing.
ViewModelLocator.cs using GalaSoft.MvvmLight.Ioc; using Microsoft.Practices.ServiceLocation; using Point_Of_Sale.Model; using System.Collections.Generic; namespace Point_Of_Sale.ViewModel { public class ViewModelLocator
I am attempting to write some code for a flow meter and LEDs using my Arduino. I need the flow meter to count a certain quantity of fluid, then light up an LED which corresponds to that quantity. I found this code on the internet and it was exactly what I needed but when I opened up the serial monitor to see if it worked it didn't. I have finally fixed the issue with it not counting anything at all, but it is still acting as if it was measuring the rate. how it counts and keeps track of how much fluid in total has passed through the flow meter ?
volatile int NbTopsFan; //variable to accumulate the number of pulses float Calc = 0; //the volume flowed since measurement started, liters void pulse() //This is the function that the interupt calls int hallsensor = 2; //The pin location of the sensor
const int led1Pin = 3; //pin for LED corresponding to volume1 const int led2Pin = 4; //pin for LED corresponding to volume2
into an universal variable array.I just want to figure out a way to simply input the CSV file into a 2D variable array.The values in the array will be later use in functions that I'm trying to figure out but I can't do that until I store these values in the array. I think is just a matter of figuring out how to tell fscanf to ommit spaces and commas, but I don't know how. This is what I have done
i'm working on a robotics project, to move the robot from it's current position to target position i need to calculate the angle first before i can move the robot.this the code I use to calculate the angle:
double cal_angle ( int current_x , int current_y , int tar_x , int tar_y ) { return atan2(tar_y - current_y, tar_x - current_x); } int main ()
[code]....
as u can see the angle between x4,y4 to x1,y1 should be 3.14 (180)however , the result are correct as long as the distance from the current position to target position > 1 (not sure actually).
I am making a game and I am trying to rotate an image so that it is always pointing at the player. I have two lines, the first point of both of them is on the image and the second point of one line is on the last position of the player, and the second point of the other one is on the current position of the player. To rotate the image I need to get the angle between the two lines. how I can get that angle with only the points from the lines?
I'm trying to make a bullet bounce after it hits a wall. I think bouncing on the top and bottom wall works perfectly, but it won't bounce off of the left and right walls. How would I get it to bounce? This is how I get the direction the bullet it going whenever I shoot.
On a right angled triangle, if the user inputs only ONE side length (not the hypotenuse) and only ONE angle, what code is required to work out the hypotenuse? I know how to work out the final side and the remaining angle once I have this.
Let (x,y) be the center of the circle. (x,y) will not be (0,0). I have radius of the circle. Now i want to find the angle and radius of the given point inside the circle.
In a cartesian coordinate system, I want to be able to predict a compass angle of an object. So I have a base position of (0,0) and then a distance and compass angle to an object. This object also has a heading and a speed. How can I predict the new compass angle of the object with that information?
my coordinate system is like this:
Code: 0 y | | 270-------------- 90 x | | 180
I think the first step would be to compute the cartesian coordinates of the object:
float degs_to_rads = 3.141592653589793 / 180.0; x = distance * sin(angle*degs_to_rads); y = distance * cos(angle*degs_to_rads);
then the next step would be to compute the predicted x and y from the speed and heading of the object:
predictedx = ?? predictedy = ??
then finally convert back to an angle, and distance:
I have completed the codes for the interface part. Before I proceed with the formula for the trigonometric functions, I would like to make sure the program is Error-free, which if there is accidental invalid input from the user, the program would the user to enter another input until it is a valid response.
The only problem I have encountered for this matter was in menu(value)
If I enter an integer, the program will proceed without error. However, If I enter a character, the program will slip into an endless loop which constantly shows this
*****Trigonometry Program***** Please enter an angle value => Is the angle in Degree or Radian? Type D if it is in Degree Type R if it is in Radian Your response=> 0 //my initial input for value
Do you want to continue? Type Y to continue Type any other key to stop Your response =>
Where is the source of the problem? I'm pretty sure it's the loop, but I don't know what to do.
I want to make an object, which moves from x1,y1 to x2,y2 in a straight line, also make a sinus over the line (so the x,0 is the line itself, and cux,cury is the object. So the object will move as a sinus over the line. How do I do this in c++?
