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Rudder program
main.cpp
- Committer:
- LukeMar
- Date:
- 2018-11-28
- Revision:
- 1:9e727d54e80c
- Parent:
- 0:8ed926c84e2f
File content as of revision 1:9e727d54e80c:
/* Test for manual control thread Spektrum receiver simple test range on transmitter is 344-1564 to correspond to rudder angle of 90-270 current eqn to convert RC output is (IN/6.77)+39.19 NB: The specification for Spektrum Remote Receiver Interfacing, rev A, 12 Apr 2016, has a note about servo position ranges: "A full range of servo position data ranges from 0-1024 or 0-2045 depending on the bind type. These limits are equivalent to a +/-150% travel setting in AirWare. This full range translates to a range of 1194us which when applied to a pwm servo signal equals 903-2097us. At +/-100% travel, the data range is equivalent to a servo position data range of approximately 341 to 1707 which translated to pwm equals 1102 us to 1898 us." */ #include "mbed.h" //#include "rtos.h" #include "Spektrum.h" #include "unity.h" //****RC control universal variables**** Serial pc(USBTX, USBRX, 115200); Spektrum rx(p13, p14); char c; int i; int j; float now; //***Stepper Motor universal variables*** AnalogIn r_ain(p18); PwmOut rudder( p22 ); DigitalOut r_dir( p21 ); DigitalOut r_I(p23); DigitalOut r_slp(p30); //sleep float r_ang = 180.0; float r_pos = 180.0; float RC_1; //**get position** float posr(); int main(void) { r_I=0; rudder.period(.001); rudder.pulsewidth(0); // loop while(1) { //now = rtos::Kernel::get_ms_count(); //***JUST ADDED stepper code if (rx.valid) { RC_1 = rx.channel[0]; pc.printf(" rc: %f\n",rx.channel[0]); } else { pc.printf(" invalid\r\n"); r_slp = 0; } //39.19 r_ang = (RC_1/6.77)+39.19; r_pos = (r_ain-.108)/.002466; //pc.printf(" %.3f\n",); if((r_pos > (r_ang-3.0)) && (r_pos < (r_ang+3.0))) { rudder.pulsewidth(0); r_slp = 0; } if( (r_pos > (r_ang+3.0)) && r_pos < 270.0) { r_slp = 1; while(r_pos > r_ang) { r_dir = 1; //left?? rudder.pulsewidth(.0005); pc.printf("pos: %.3f\n",r_pos); r_pos = posr(); }//while pos rudder.pulsewidth(0); }//if pos if((r_pos < (r_ang-3.0)) && r_pos > 90.0) { r_slp = 1; while(r_pos < r_ang) { r_dir = 0; //right?? rudder.pulsewidth(.0005); pc.printf("pos: %.3f\n",r_pos); r_pos = posr(); }//while pos rudder.pulsewidth(0); } //***END OF JUST ADDED ThisThread::sleep_until(121); }//while(1) } // main() for TESTS/receiver/simple float posr() { float r1; float r2; float r3; r1 = (r_ain-.108)/.002466; r2 = (r_ain-.108)/.002466; r3 = (r_ain-.108)/.002466; return (r1+r2+r3)/3.0; }