working PID + Kinematics + Motorcontrol
Dependencies: HIDScope MODSERIAL QEI biquadFilter mbed
main.cpp@0:a6f2b6cc83ca, 2018-10-30 (annotated)
- Committer:
- cmaas
- Date:
- Tue Oct 30 16:04:17 2018 +0000
- Revision:
- 0:a6f2b6cc83ca
- Child:
- 1:4f1cd3b918f5
- Child:
- 2:44758d95cb0b
working kinematics + pid
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
cmaas | 0:a6f2b6cc83ca | 1 | // KINEMATICS + PID + MOTOR CONTROL |
cmaas | 0:a6f2b6cc83ca | 2 | |
cmaas | 0:a6f2b6cc83ca | 3 | //----------------~INITIATING------------------------- |
cmaas | 0:a6f2b6cc83ca | 4 | #include "mbed.h" |
cmaas | 0:a6f2b6cc83ca | 5 | |
cmaas | 0:a6f2b6cc83ca | 6 | // KINEMATICS -- DEPENDENCIES |
cmaas | 0:a6f2b6cc83ca | 7 | #include "stdio.h" |
cmaas | 0:a6f2b6cc83ca | 8 | #define _USE_MATH_DEFINES |
cmaas | 0:a6f2b6cc83ca | 9 | #include <math.h> |
cmaas | 0:a6f2b6cc83ca | 10 | #define M_PI 3.14159265358979323846 /* pi */ |
cmaas | 0:a6f2b6cc83ca | 11 | |
cmaas | 0:a6f2b6cc83ca | 12 | // PID CONTROLLER -- DEPENDENCIES |
cmaas | 0:a6f2b6cc83ca | 13 | #include "BiQuad.h" |
cmaas | 0:a6f2b6cc83ca | 14 | #include "QEI.h" |
cmaas | 0:a6f2b6cc83ca | 15 | #include "MODSERIAL.h" |
cmaas | 0:a6f2b6cc83ca | 16 | #include "HIDScope.h" |
cmaas | 0:a6f2b6cc83ca | 17 | //#include "Math.h" |
cmaas | 0:a6f2b6cc83ca | 18 | |
cmaas | 0:a6f2b6cc83ca | 19 | // PID CONTROLLER -- PIN DEFENITIONS |
cmaas | 0:a6f2b6cc83ca | 20 | AnalogIn button2(A4); |
cmaas | 0:a6f2b6cc83ca | 21 | DigitalOut directionpin1(D7); // motor 1 |
cmaas | 0:a6f2b6cc83ca | 22 | PwmOut pwmpin1(D6); // motor 1 |
cmaas | 0:a6f2b6cc83ca | 23 | |
cmaas | 0:a6f2b6cc83ca | 24 | QEI encoder1 (D9, D8, NC, 8400, QEI::X4_ENCODING); |
cmaas | 0:a6f2b6cc83ca | 25 | MODSERIAL pc(USBTX, USBRX); |
cmaas | 0:a6f2b6cc83ca | 26 | HIDScope scope(2); |
cmaas | 0:a6f2b6cc83ca | 27 | |
cmaas | 0:a6f2b6cc83ca | 28 | // TICKERS |
cmaas | 0:a6f2b6cc83ca | 29 | Ticker ref_rot; |
cmaas | 0:a6f2b6cc83ca | 30 | Ticker show_counts; |
cmaas | 0:a6f2b6cc83ca | 31 | Ticker Scope_Data; |
cmaas | 0:a6f2b6cc83ca | 32 | |
cmaas | 0:a6f2b6cc83ca | 33 | //----------------GLOBALS-------------------------- |
cmaas | 0:a6f2b6cc83ca | 34 | |
cmaas | 0:a6f2b6cc83ca | 35 | // CONSTANTS PID CONTROLLER |
cmaas | 0:a6f2b6cc83ca | 36 | double PI = M_PI;// CHANGE THIS INTO M_PI |
cmaas | 0:a6f2b6cc83ca | 37 | double Kp = 16; //200 , 50 |
cmaas | 0:a6f2b6cc83ca | 38 | double Ki = 0; //1, 0.5 |
cmaas | 0:a6f2b6cc83ca | 39 | double Kd = 4.5; //200, 10 |
cmaas | 0:a6f2b6cc83ca | 40 | double Ts = 0.1; // Sample time in seconds |
cmaas | 0:a6f2b6cc83ca | 41 | double reference_rotation; //define as radians |
cmaas | 0:a6f2b6cc83ca | 42 | double motor_position; |
cmaas | 0:a6f2b6cc83ca | 43 | bool AlwaysTrue; |
cmaas | 0:a6f2b6cc83ca | 44 | |
cmaas | 0:a6f2b6cc83ca | 45 | //CONSTANTS KINEMATICS |
cmaas | 0:a6f2b6cc83ca | 46 | // constants |
cmaas | 0:a6f2b6cc83ca | 47 | const float la = 0.256; // lengte actieve arm |
cmaas | 0:a6f2b6cc83ca | 48 | const float lp = 0.21; // lengte passieve arm |
cmaas | 0:a6f2b6cc83ca | 49 | const float rp = 0.052; // straal van midden end effector tot hoekpunt |
cmaas | 0:a6f2b6cc83ca | 50 | const float rm = 0.23; // straal van global midden tot motor |
cmaas | 0:a6f2b6cc83ca | 51 | const float a = 0.09; // zijde van de driehoek |
cmaas | 0:a6f2b6cc83ca | 52 | const float xas = 0.40; // afstand van motor 1 tot motor 3 |
cmaas | 0:a6f2b6cc83ca | 53 | const float yas = 0.346; // afstand van xas tot motor 2 |
cmaas | 0:a6f2b6cc83ca | 54 | const float thetap = 0; // rotatiehoek van de end effector |
cmaas | 0:a6f2b6cc83ca | 55 | |
cmaas | 0:a6f2b6cc83ca | 56 | // motor locatie |
cmaas | 0:a6f2b6cc83ca | 57 | const int a1x = 0; //x locatie motor 1 |
cmaas | 0:a6f2b6cc83ca | 58 | const int a1y = 0; //y locatie motor 1 |
cmaas | 0:a6f2b6cc83ca | 59 | const float a2x = (0.5)*xas; // x locatie motor 2 |
cmaas | 0:a6f2b6cc83ca | 60 | const float a2y = yas; // y locatie motor 2 |
cmaas | 0:a6f2b6cc83ca | 61 | const float a3x = xas; // x locatie motor 3 |
cmaas | 0:a6f2b6cc83ca | 62 | const int a3y = 0; // y locatie motor 3 |
cmaas | 0:a6f2b6cc83ca | 63 | |
cmaas | 0:a6f2b6cc83ca | 64 | // script voor het bepalen van de desired position aan de hand van emg (1/0) |
cmaas | 0:a6f2b6cc83ca | 65 | |
cmaas | 0:a6f2b6cc83ca | 66 | // EMG OUTPUT |
cmaas | 0:a6f2b6cc83ca | 67 | int EMGxplus; |
cmaas | 0:a6f2b6cc83ca | 68 | int EMGxmin ; |
cmaas | 0:a6f2b6cc83ca | 69 | int EMGyplus; |
cmaas | 0:a6f2b6cc83ca | 70 | int EMGymin ; |
cmaas | 0:a6f2b6cc83ca | 71 | |
cmaas | 0:a6f2b6cc83ca | 72 | // Dit moet experimenteel geperfectioneerd worden |
cmaas | 0:a6f2b6cc83ca | 73 | float tijdstap = 0.05; //nu wss heel langzaam, kan miss omhoog |
cmaas | 0:a6f2b6cc83ca | 74 | float v = 0.1; // snelheid kan wss ook hoger |
cmaas | 0:a6f2b6cc83ca | 75 | |
cmaas | 0:a6f2b6cc83ca | 76 | float px = 0.2; //starting x |
cmaas | 0:a6f2b6cc83ca | 77 | float py = 0.155; // starting y |
cmaas | 0:a6f2b6cc83ca | 78 | |
cmaas | 0:a6f2b6cc83ca | 79 | // limits (since no forward kinematics) |
cmaas | 0:a6f2b6cc83ca | 80 | float upperxlim = 0.36; //niet helemaal naar requierments ff kijken of ie groter kan |
cmaas | 0:a6f2b6cc83ca | 81 | float lowerxlim = 0.04; |
cmaas | 0:a6f2b6cc83ca | 82 | float upperylim = 0.30; |
cmaas | 0:a6f2b6cc83ca | 83 | float lowerylim = 0.04; |
cmaas | 0:a6f2b6cc83ca | 84 | |
cmaas | 0:a6f2b6cc83ca | 85 | |
cmaas | 0:a6f2b6cc83ca | 86 | //----------------FUNCTIONS-------------------------- |
cmaas | 0:a6f2b6cc83ca | 87 | |
cmaas | 0:a6f2b6cc83ca | 88 | // ~~~~~~~~~~~~~~ROBOT KINEMATICS ~~~~~~~~~~~~~~~~~~ |
cmaas | 0:a6f2b6cc83ca | 89 | |
cmaas | 0:a6f2b6cc83ca | 90 | // functie x positie |
cmaas | 0:a6f2b6cc83ca | 91 | float positionx(int EMGxplus,int EMGxmin) |
cmaas | 0:a6f2b6cc83ca | 92 | { |
cmaas | 0:a6f2b6cc83ca | 93 | float EMGx = EMGxplus - EMGxmin; |
cmaas | 0:a6f2b6cc83ca | 94 | |
cmaas | 0:a6f2b6cc83ca | 95 | float verplaatsingx = EMGx * tijdstap * v; |
cmaas | 0:a6f2b6cc83ca | 96 | float pxnieuw = px + verplaatsingx; |
cmaas | 0:a6f2b6cc83ca | 97 | // x limit |
cmaas | 0:a6f2b6cc83ca | 98 | if (pxnieuw <= upperxlim && pxnieuw >= lowerxlim) |
cmaas | 0:a6f2b6cc83ca | 99 | { |
cmaas | 0:a6f2b6cc83ca | 100 | px = pxnieuw; |
cmaas | 0:a6f2b6cc83ca | 101 | } |
cmaas | 0:a6f2b6cc83ca | 102 | else |
cmaas | 0:a6f2b6cc83ca | 103 | { |
cmaas | 0:a6f2b6cc83ca | 104 | if (pxnieuw >= lowerxlim) |
cmaas | 0:a6f2b6cc83ca | 105 | { |
cmaas | 0:a6f2b6cc83ca | 106 | px = upperxlim; |
cmaas | 0:a6f2b6cc83ca | 107 | } |
cmaas | 0:a6f2b6cc83ca | 108 | else |
cmaas | 0:a6f2b6cc83ca | 109 | { |
cmaas | 0:a6f2b6cc83ca | 110 | px = lowerxlim; |
cmaas | 0:a6f2b6cc83ca | 111 | } |
cmaas | 0:a6f2b6cc83ca | 112 | } |
cmaas | 0:a6f2b6cc83ca | 113 | //printf("X eindpunt (%f) en verplaatsing: (%f)\n\r",px,verplaatsingx); |
cmaas | 0:a6f2b6cc83ca | 114 | return px; |
cmaas | 0:a6f2b6cc83ca | 115 | } |
cmaas | 0:a6f2b6cc83ca | 116 | |
cmaas | 0:a6f2b6cc83ca | 117 | |
cmaas | 0:a6f2b6cc83ca | 118 | // functie y positie |
cmaas | 0:a6f2b6cc83ca | 119 | float positiony(int EMGyplus,int EMGymin) |
cmaas | 0:a6f2b6cc83ca | 120 | { |
cmaas | 0:a6f2b6cc83ca | 121 | float EMGy = EMGyplus - EMGymin; |
cmaas | 0:a6f2b6cc83ca | 122 | |
cmaas | 0:a6f2b6cc83ca | 123 | float verplaatsingy = EMGy * tijdstap * v; |
cmaas | 0:a6f2b6cc83ca | 124 | float pynieuw = py + verplaatsingy; |
cmaas | 0:a6f2b6cc83ca | 125 | |
cmaas | 0:a6f2b6cc83ca | 126 | // y limit |
cmaas | 0:a6f2b6cc83ca | 127 | if (pynieuw <= upperylim && pynieuw >= lowerylim) |
cmaas | 0:a6f2b6cc83ca | 128 | { |
cmaas | 0:a6f2b6cc83ca | 129 | py = pynieuw; |
cmaas | 0:a6f2b6cc83ca | 130 | } |
cmaas | 0:a6f2b6cc83ca | 131 | else |
cmaas | 0:a6f2b6cc83ca | 132 | { |
cmaas | 0:a6f2b6cc83ca | 133 | if (pynieuw >= lowerylim) |
cmaas | 0:a6f2b6cc83ca | 134 | { |
cmaas | 0:a6f2b6cc83ca | 135 | py = upperylim; |
cmaas | 0:a6f2b6cc83ca | 136 | } |
cmaas | 0:a6f2b6cc83ca | 137 | else |
cmaas | 0:a6f2b6cc83ca | 138 | { |
cmaas | 0:a6f2b6cc83ca | 139 | py = lowerylim; |
cmaas | 0:a6f2b6cc83ca | 140 | } |
cmaas | 0:a6f2b6cc83ca | 141 | } |
cmaas | 0:a6f2b6cc83ca | 142 | //printf("Y eindpunt (%f) en verplaatsing: (%f) \n\r",py,verplaatsingy); |
cmaas | 0:a6f2b6cc83ca | 143 | return (py); |
cmaas | 0:a6f2b6cc83ca | 144 | } |
cmaas | 0:a6f2b6cc83ca | 145 | |
cmaas | 0:a6f2b6cc83ca | 146 | |
cmaas | 0:a6f2b6cc83ca | 147 | //~~~~~~~~~~~~CALCULATIING MOTOR ANGLES ~~~~~~~~ |
cmaas | 0:a6f2b6cc83ca | 148 | // arm 1 --> reference angle motor 1 |
cmaas | 0:a6f2b6cc83ca | 149 | float hoek1(float px, float py) // input: ref x, ref y |
cmaas | 0:a6f2b6cc83ca | 150 | { |
cmaas | 0:a6f2b6cc83ca | 151 | float c1x = px - rp * cos(thetap +(M_PI/6)); // x locatie hoekpunt end-effector |
cmaas | 0:a6f2b6cc83ca | 152 | float c1y = py - rp*sin(thetap+(M_PI/6)); // y locatie hoekpunt end-effector |
cmaas | 0:a6f2b6cc83ca | 153 | float alpha1 = atan2((c1y-a1y),(c1x-a1x)); // hoek tussen horizontaal en lijn van motor naar bijbehorende end-effector punt |
cmaas | 0:a6f2b6cc83ca | 154 | float psi1 = acos(( pow(la,2)-pow(lp,2)+pow((c1x-a1x),2)+pow((c1y-a1y),2))/(2*la*sqrt(pow ((c1x-a1x),2)+pow((c1y-a1y),2) ))); //Hoek tussen lijn van motor naar bijbehorende end=effector punt en actieve arm |
cmaas | 0:a6f2b6cc83ca | 155 | float a1 = alpha1 + psi1; //hoek tussen horizontaal en actieve arm |
cmaas | 0:a6f2b6cc83ca | 156 | //printf("arm 1 = %f \n\r",a1); |
cmaas | 0:a6f2b6cc83ca | 157 | return a1; |
cmaas | 0:a6f2b6cc83ca | 158 | } |
cmaas | 0:a6f2b6cc83ca | 159 | |
cmaas | 0:a6f2b6cc83ca | 160 | // arm 2 --> reference angle motor 2 |
cmaas | 0:a6f2b6cc83ca | 161 | float hoek2(float px, float py) |
cmaas | 0:a6f2b6cc83ca | 162 | { |
cmaas | 0:a6f2b6cc83ca | 163 | float c2x = px - rp * cos(thetap -(M_PI/2)); |
cmaas | 0:a6f2b6cc83ca | 164 | float c2y = py - rp*sin(thetap-(M_PI/2)); |
cmaas | 0:a6f2b6cc83ca | 165 | float alpha2 = atan2((c2y-a2y),(c2x-a2x)); |
cmaas | 0:a6f2b6cc83ca | 166 | float psi2 = acos(( pow(la,2)-pow(lp,2)+pow((c2x-a2x),2)+pow((c2y-a2y),2))/(2*la*sqrt(pow ((c2x-a2x),2)+pow((c2y-a2y),2) ))); |
cmaas | 0:a6f2b6cc83ca | 167 | float a2 = alpha2 + psi2; |
cmaas | 0:a6f2b6cc83ca | 168 | //printf("arm 2 = %f \n\r",a2); |
cmaas | 0:a6f2b6cc83ca | 169 | return a2; |
cmaas | 0:a6f2b6cc83ca | 170 | } |
cmaas | 0:a6f2b6cc83ca | 171 | |
cmaas | 0:a6f2b6cc83ca | 172 | //arm 3 --> reference angle motor 3 |
cmaas | 0:a6f2b6cc83ca | 173 | float hoek3(float px, float py) |
cmaas | 0:a6f2b6cc83ca | 174 | { |
cmaas | 0:a6f2b6cc83ca | 175 | float c3x = px - rp * cos(thetap +(5*M_PI/6)); |
cmaas | 0:a6f2b6cc83ca | 176 | float c3y = py - rp*sin(thetap+(5*M_PI/6)); |
cmaas | 0:a6f2b6cc83ca | 177 | float alpha3 = atan2((c3y-a3y),(c3x-a3x)); |
cmaas | 0:a6f2b6cc83ca | 178 | float psi3 = acos(( pow(la,2)-pow(lp,2)+pow((c3x-a3x),2)+pow((c3y-a3y),2))/(2*la*sqrt(pow ((c3x-a3x),2)+pow((c3y-a3y),2) ))); |
cmaas | 0:a6f2b6cc83ca | 179 | float a3 = alpha3 + psi3; |
cmaas | 0:a6f2b6cc83ca | 180 | //printf("arm 3 = %f \n\r",a3); |
cmaas | 0:a6f2b6cc83ca | 181 | return a3; |
cmaas | 0:a6f2b6cc83ca | 182 | } |
cmaas | 0:a6f2b6cc83ca | 183 | |
cmaas | 0:a6f2b6cc83ca | 184 | // ~~~~~~~~~~~~~~PID CONTROLLER~~~~~~~~~~~~~~~~~~ |
cmaas | 0:a6f2b6cc83ca | 185 | |
cmaas | 0:a6f2b6cc83ca | 186 | double PID_controller(double error) |
cmaas | 0:a6f2b6cc83ca | 187 | { |
cmaas | 0:a6f2b6cc83ca | 188 | static double error_integral = 0; |
cmaas | 0:a6f2b6cc83ca | 189 | static double error_prev = error; // initialization with this value only done once! |
cmaas | 0:a6f2b6cc83ca | 190 | static BiQuad LowPassFilter(0.0640, 0.1279, 0.0640, -1.1683, 0.4241); |
cmaas | 0:a6f2b6cc83ca | 191 | |
cmaas | 0:a6f2b6cc83ca | 192 | // Proportional part: |
cmaas | 0:a6f2b6cc83ca | 193 | double u_k = Kp * error; |
cmaas | 0:a6f2b6cc83ca | 194 | |
cmaas | 0:a6f2b6cc83ca | 195 | // Integral part |
cmaas | 0:a6f2b6cc83ca | 196 | error_integral = error_integral + error * Ts; |
cmaas | 0:a6f2b6cc83ca | 197 | double u_i = Ki * error_integral; |
cmaas | 0:a6f2b6cc83ca | 198 | |
cmaas | 0:a6f2b6cc83ca | 199 | // Derivative part |
cmaas | 0:a6f2b6cc83ca | 200 | double error_derivative = (error - error_prev)/Ts; |
cmaas | 0:a6f2b6cc83ca | 201 | double filtered_error_derivative = LowPassFilter.step(error_derivative); |
cmaas | 0:a6f2b6cc83ca | 202 | double u_d = Kd * filtered_error_derivative; |
cmaas | 0:a6f2b6cc83ca | 203 | error_prev = error; |
cmaas | 0:a6f2b6cc83ca | 204 | |
cmaas | 0:a6f2b6cc83ca | 205 | // Sum all parts and return it |
cmaas | 0:a6f2b6cc83ca | 206 | return u_k + u_i + u_d; |
cmaas | 0:a6f2b6cc83ca | 207 | } |
cmaas | 0:a6f2b6cc83ca | 208 | |
cmaas | 0:a6f2b6cc83ca | 209 | |
cmaas | 0:a6f2b6cc83ca | 210 | // DIRECTON AND SPEED CONTROL |
cmaas | 0:a6f2b6cc83ca | 211 | void moter_control(double u) |
cmaas | 0:a6f2b6cc83ca | 212 | { |
cmaas | 0:a6f2b6cc83ca | 213 | directionpin1= u > 0.0f; //eithertrueor false |
cmaas | 0:a6f2b6cc83ca | 214 | pwmpin1= fabs(u); //pwmduty cycle canonlybepositive, floatingpoint absolute value |
cmaas | 0:a6f2b6cc83ca | 215 | } |
cmaas | 0:a6f2b6cc83ca | 216 | |
cmaas | 0:a6f2b6cc83ca | 217 | |
cmaas | 0:a6f2b6cc83ca | 218 | // CONTROLLING THE MOTOR |
cmaas | 0:a6f2b6cc83ca | 219 | void Motor_mover() |
cmaas | 0:a6f2b6cc83ca | 220 | { |
cmaas | 0:a6f2b6cc83ca | 221 | double motor_position = encoder1.getPulses(); //output in counts |
cmaas | 0:a6f2b6cc83ca | 222 | double reference_rotation = hoek3(px, py); |
cmaas | 0:a6f2b6cc83ca | 223 | double error = reference_rotation - motor_position*(2*PI)/8400; |
cmaas | 0:a6f2b6cc83ca | 224 | double u = PID_controller(error); |
cmaas | 0:a6f2b6cc83ca | 225 | moter_control(u); |
cmaas | 0:a6f2b6cc83ca | 226 | } |
cmaas | 0:a6f2b6cc83ca | 227 | |
cmaas | 0:a6f2b6cc83ca | 228 | //PRINT TICKER |
cmaas | 0:a6f2b6cc83ca | 229 | void PrintFlag() |
cmaas | 0:a6f2b6cc83ca | 230 | { |
cmaas | 0:a6f2b6cc83ca | 231 | AlwaysTrue = true; |
cmaas | 0:a6f2b6cc83ca | 232 | } |
cmaas | 0:a6f2b6cc83ca | 233 | |
cmaas | 0:a6f2b6cc83ca | 234 | // HIDSCOPE |
cmaas | 0:a6f2b6cc83ca | 235 | void ScopeData() |
cmaas | 0:a6f2b6cc83ca | 236 | { |
cmaas | 0:a6f2b6cc83ca | 237 | double y = encoder1.getPulses(); |
cmaas | 0:a6f2b6cc83ca | 238 | scope.set(0, y); |
cmaas | 0:a6f2b6cc83ca | 239 | scope.send(); |
cmaas | 0:a6f2b6cc83ca | 240 | } |
cmaas | 0:a6f2b6cc83ca | 241 | |
cmaas | 0:a6f2b6cc83ca | 242 | |
cmaas | 0:a6f2b6cc83ca | 243 | //----------------------MAIN--------------------------------- |
cmaas | 0:a6f2b6cc83ca | 244 | int main() |
cmaas | 0:a6f2b6cc83ca | 245 | { |
cmaas | 0:a6f2b6cc83ca | 246 | // ~~~~~~~~~~~~~~~~ INITIATING ~~~~~~~~~~~~ |
cmaas | 0:a6f2b6cc83ca | 247 | pwmpin1.period_us(60); // setup motor |
cmaas | 0:a6f2b6cc83ca | 248 | |
cmaas | 0:a6f2b6cc83ca | 249 | // setup printing service |
cmaas | 0:a6f2b6cc83ca | 250 | pc.baud(9600); |
cmaas | 0:a6f2b6cc83ca | 251 | pc.printf("test"); |
cmaas | 0:a6f2b6cc83ca | 252 | |
cmaas | 0:a6f2b6cc83ca | 253 | // Tickers |
cmaas | 0:a6f2b6cc83ca | 254 | //show_counts.attach(PrintFlag, 0.2); |
cmaas | 0:a6f2b6cc83ca | 255 | ref_rot.attach(Motor_mover, 0.01); |
cmaas | 0:a6f2b6cc83ca | 256 | Scope_Data.attach(ScopeData, 0.01); |
cmaas | 0:a6f2b6cc83ca | 257 | |
cmaas | 0:a6f2b6cc83ca | 258 | |
cmaas | 0:a6f2b6cc83ca | 259 | // berekenen positie |
cmaas | 0:a6f2b6cc83ca | 260 | float px = positionx(1,0); // EMG: +x, -x |
cmaas | 0:a6f2b6cc83ca | 261 | float py = positiony(1,0); // EMG: +y, -y |
cmaas | 0:a6f2b6cc83ca | 262 | //printf("positie (%f,%f)\n\r",px,py); |
cmaas | 0:a6f2b6cc83ca | 263 | |
cmaas | 0:a6f2b6cc83ca | 264 | // berekenen hoeken |
cmaas | 0:a6f2b6cc83ca | 265 | /* |
cmaas | 0:a6f2b6cc83ca | 266 | float a1 = hoek1(px, py); |
cmaas | 0:a6f2b6cc83ca | 267 | float a2 = hoek2(px, py); |
cmaas | 0:a6f2b6cc83ca | 268 | float a3 = hoek3(px, py); |
cmaas | 0:a6f2b6cc83ca | 269 | |
cmaas | 0:a6f2b6cc83ca | 270 | printf("hoek(%f,%f,%f)\n\r",a1,a2,a3); |
cmaas | 0:a6f2b6cc83ca | 271 | |
cmaas | 0:a6f2b6cc83ca | 272 | return 0; |
cmaas | 0:a6f2b6cc83ca | 273 | */ |
cmaas | 0:a6f2b6cc83ca | 274 | } |