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some bug fixes, added basic camera leveling example for pitch only. Added DCM test. Added better Yaw gain defaults. Split radio and RC inits into two calls. Removed inappropriate auto_trim function. 

git-svn-id: https://arducopter.googlecode.com/svn/trunk@1306 f9c3cf11-9bcb-44bc-f272-b75c42450872
master
jasonshort 14 years ago
parent
c2458845ee
commit
2bc568e3b6
10 changed files with 257 additions and 172 deletions
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  1. 2
      ArduCopterMega/APM_Config.h
  2. 26
      ArduCopterMega/ArduCopterMega.pde
  3. 134
      ArduCopterMega/Attitude.pde
  4. 2
      ArduCopterMega/config.h
  5. 8
      ArduCopterMega/control_modes.pde
  6. 2
      ArduCopterMega/defines.h
  7. 149
      ArduCopterMega/radio.pde
  8. 9
      ArduCopterMega/setup.pde
  9. 7
      ArduCopterMega/system.pde
  10. 90
      ArduCopterMega/test.pde

2
ArduCopterMega/APM_Config.h
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@ -15,7 +15,7 @@ @@ -15,7 +15,7 @@
// These are all experimental and underwork, jp 23-12-10
//#define ENABLE_EXTRAS ENABLED
//#define ENABLE_EXTRAINIT ENABLED
//#define ENABLE_CAM ENABLED
#define ENABLE_CAM ENABLED
//#define ENABLE_AM ENABLED
//#define ENABLE_xx ENABLED

26
ArduCopterMega/ArduCopterMega.pde
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@ -124,6 +124,10 @@ RC_Channel rc_5(EE_RADIO_5); @@ -124,6 +124,10 @@ RC_Channel rc_5(EE_RADIO_5);
RC_Channel rc_6(EE_RADIO_6);
RC_Channel rc_7(EE_RADIO_7);
RC_Channel rc_8(EE_RADIO_8);
RC_Channel rc_camera_pitch(EE_RADIO_9);
RC_Channel rc_camera_yaw(EE_RADIO_10);
int motor_out[4];
byte flight_mode_channel;
byte frame_type = PLUS_FRAME;
@ -587,17 +591,17 @@ void medium_loop() @@ -587,17 +591,17 @@ void medium_loop()
output_HIL();
#endif
#if ENABLE_CAM
camera_stabilization();
#endif
#if ENABLE_AM
flight_lights();
#endif
#if ENABLE_xx
do_something_usefull();
#endif
#if ENABLE_CAM
camera_stabilization();
#endif
#if ENABLE_AM
flight_lights();
#endif
#if ENABLE_xx
do_something_usefull();
#endif
if (millis() - perf_mon_timer > 20000) {

134
ArduCopterMega/Attitude.pde
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@ -96,138 +96,4 @@ void reset_I(void) @@ -96,138 +96,4 @@ void reset_I(void)
}
/*****************************************
* Set the flight control servos based on the current calculated values
*****************************************/
void set_servos_4(void)
{
static byte num;
// Quadcopter mix
if (motor_armed == true) {
int out_min = rc_3.radio_min;
// Throttle is 0 to 1000 only
rc_3.servo_out = constrain(rc_3.servo_out, 0, 1000);
if(rc_3.servo_out > 0)
out_min = rc_3.radio_min + 50;
//Serial.printf("out: %d %d %d %d\t\t", rc_1.servo_out, rc_2.servo_out, rc_3.servo_out, rc_4.servo_out);
// creates the radio_out and pwm_out values
rc_1.calc_pwm();
rc_2.calc_pwm();
rc_3.calc_pwm();
rc_4.calc_pwm();
//Serial.printf("out: %d %d %d %d\n", rc_1.radio_out, rc_2.radio_out, rc_3.radio_out, rc_4.radio_out);
//Serial.printf("yaw: %d ", rc_4.radio_out);
if(frame_type == PLUS_FRAME){
motor_out[RIGHT] = rc_3.radio_out - rc_1.pwm_out;
motor_out[LEFT] = rc_3.radio_out + rc_1.pwm_out;
motor_out[FRONT] = rc_3.radio_out + rc_2.pwm_out;
motor_out[BACK] = rc_3.radio_out - rc_2.pwm_out;
}else{
int roll_out = rc_1.pwm_out / 2;
int pitch_out = rc_2.pwm_out / 2;
motor_out[RIGHT] = rc_3.radio_out - roll_out + pitch_out;
motor_out[LEFT] = rc_3.radio_out + roll_out - pitch_out;
motor_out[FRONT] = rc_3.radio_out + roll_out + pitch_out;
motor_out[BACK] = rc_3.radio_out - roll_out - pitch_out;
}
//Serial.printf("\tb4: %d %d %d %d ", motor_out[RIGHT], motor_out[LEFT], motor_out[FRONT], motor_out[BACK]);
motor_out[RIGHT] += rc_4.pwm_out;
motor_out[LEFT] += rc_4.pwm_out;
motor_out[FRONT] -= rc_4.pwm_out;
motor_out[BACK] -= rc_4.pwm_out;
//Serial.printf("\tl8r: %d %d %d %d\n", motor_out[RIGHT], motor_out[LEFT], motor_out[FRONT], motor_out[BACK]);
motor_out[RIGHT] = constrain(motor_out[RIGHT], out_min, rc_3.radio_max);
motor_out[LEFT] = constrain(motor_out[LEFT], out_min, rc_3.radio_max);
motor_out[FRONT] = constrain(motor_out[FRONT], out_min, rc_3.radio_max);
motor_out[BACK] = constrain(motor_out[BACK], out_min, rc_3.radio_max);
///*
int r_out = ((long)(motor_out[RIGHT] - rc_3.radio_min) * 100) / (long)(rc_3.radio_max - rc_3.radio_min);
int l_out = ((long)(motor_out[LEFT] - rc_3.radio_min) * 100) / (long)(rc_3.radio_max - rc_3.radio_min);
int f_out = ((long)(motor_out[FRONT] - rc_3.radio_min) * 100) / (long)(rc_3.radio_max - rc_3.radio_min);
int b_out = ((long)(motor_out[BACK] - rc_3.radio_min) * 100) / (long)(rc_3.radio_max - rc_3.radio_min);
//*/
//
/* debugging and dynamic kP
num++;
if (num > 50){
num = 0;
//Serial.printf("control_in: %d ", rc_3.control_in);
//Serial.printf(" servo: %d %d %d %d\t", rc_1.servo_out, rc_2.servo_out, rc_3.servo_out, rc_4.servo_out);
//Serial.printf(" cwm: %d %d %d %d, %d\t", rc_1.pwm_out, rc_2.pwm_out, rc_3.pwm_out, rc_4.pwm_out, rc_3.radio_out);
//Serial.printf(" out: %d %d %d %d\n", r_out, l_out, f_out, b_out);
//Serial.printf(" pwm: %d, %d %d %d %d\n",rc_3.pwm_out, motor_out[RIGHT], motor_out[LEFT], motor_out[FRONT], motor_out[BACK]);
pid_stabilize_roll.kP((float)rc_6.control_in / 1000);
stabilize_rate_roll_pitch = pid_stabilize_roll.kP() *.25;
init_pids();
//Serial.print("kP: ");
//Serial.println(pid_stabilize_roll.kP(),3);
}
// out: 41 38 39 39
// pwm: 358, 1412 1380 1395 1389
//*/
//Serial.printf("set: %d %d %d %d\n", motor_out[RIGHT], motor_out[LEFT], motor_out[FRONT], motor_out[BACK]);
//Serial.printf("s: %d %d %d\t\t", (int)roll_sensor, (int)pitch_sensor, (int)yaw_sensor);
///Serial.printf("outmin: %d\n", out_min);
/*
write_int(r_out);
write_int(l_out);
write_int(f_out);
write_int(b_out);
write_int((int)(roll_sensor / 100));
write_int((int)(pitch_sensor / 100));
write_int((int)(yaw_sensor / 100));
write_int((int)(yaw_error / 100));
write_int((int)(current_loc.alt));
write_int((int)(altitude_error));
flush(10);
//*/
// Send commands to motors
if(rc_3.servo_out > 0){
APM_RC.OutputCh(CH_1, motor_out[RIGHT]);
APM_RC.OutputCh(CH_2, motor_out[LEFT]);
APM_RC.OutputCh(CH_3, motor_out[FRONT]);
APM_RC.OutputCh(CH_4, motor_out[BACK]);
}else{
APM_RC.OutputCh(CH_1, rc_3.radio_min);
APM_RC.OutputCh(CH_2, rc_3.radio_min);
APM_RC.OutputCh(CH_3, rc_3.radio_min);
APM_RC.OutputCh(CH_4, rc_3.radio_min);
}
// InstantPWM
APM_RC.Force_Out0_Out1();
APM_RC.Force_Out2_Out3();
}else{
// Send commands to motors
APM_RC.OutputCh(CH_1, rc_3.radio_min);
APM_RC.OutputCh(CH_2, rc_3.radio_min);
APM_RC.OutputCh(CH_3, rc_3.radio_min);
APM_RC.OutputCh(CH_4, rc_3.radio_min);
// reset I terms of PID controls
reset_I();
// Initialize yaw command to actual yaw when throttle is down...
rc_4.control_in = ToDeg(yaw);
}
}

2
ArduCopterMega/config.h
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@ -319,7 +319,7 @@ @@ -319,7 +319,7 @@
// YAW Control
//
#ifndef YAW_P
# define YAW_P 0.3
# define YAW_P 0.8
#endif
#ifndef YAW_I
# define YAW_I 0.0

8
ArduCopterMega/control_modes.pde
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@ -76,11 +76,12 @@ void read_trim_switch() @@ -76,11 +76,12 @@ void read_trim_switch()
// switch was just released
if((millis() - trim_timer) > 2000){
/*
///*
if(rc_3.control_in == 0){
imu.init_accel();
imu.print_accel_offsets();
}*/
}
/*
if(rc_3.control_in == 0){
imu.zero_accel();
}else{
@ -88,8 +89,9 @@ void read_trim_switch() @@ -88,8 +89,9 @@ void read_trim_switch()
// set new accel offset values
imu.ax(((long)rc_1.control_in * -15) / 100);
imu.ay(((long)rc_2.control_in * -15) / 100);
imu.print_accel_offsets();
}
}*/
} else {
// set the throttle nominal

2
ArduCopterMega/defines.h
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@ -242,6 +242,8 @@ @@ -242,6 +242,8 @@
#define EE_RADIO_6 0x1E // all gains stored from here
#define EE_RADIO_7 0x24 // all gains stored from here
#define EE_RADIO_8 0x2A // all gains stored from here
#define EE_RADIO_9 0xD2 // camera pitch
#define EE_RADIO_10 0xD8 // camera roll
// user gains
#define EE_XTRACK_GAIN 0x30

149
ArduCopterMega/radio.pde
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@ -1,4 +1,4 @@ @@ -1,4 +1,4 @@
void init_radio()
void init_rc_in()
{
rc_1.set_angle(4500);
rc_1.dead_zone = 50;
@ -15,9 +15,13 @@ void init_radio() @@ -15,9 +15,13 @@ void init_radio()
rc_6.set_range(200,800);
rc_7.set_range(0,1000);
rc_8.set_range(0,1000);
}
void init_rc_out()
{
#if ARM_AT_STARTUP == 1
motor_armed = 1;
motor_armed = 1;
#endif
APM_RC.OutputCh(CH_1, rc_3.radio_min); // Initialization of servo outputs
@ -83,3 +87,142 @@ void arm_motors() @@ -83,3 +87,142 @@ void arm_motors()
}
}
}
/*****************************************
* Set the flight control servos based on the current calculated values
*****************************************/
void set_servos_4(void)
{
static byte num;
// Quadcopter mix
if (motor_armed == true) {
int out_min = rc_3.radio_min;
// Throttle is 0 to 1000 only
rc_3.servo_out = constrain(rc_3.servo_out, 0, 1000);
if(rc_3.servo_out > 0)
out_min = rc_3.radio_min + 50;
//Serial.printf("out: %d %d %d %d\t\t", rc_1.servo_out, rc_2.servo_out, rc_3.servo_out, rc_4.servo_out);
// creates the radio_out and pwm_out values
rc_1.calc_pwm();
rc_2.calc_pwm();
rc_3.calc_pwm();
rc_4.calc_pwm();
//Serial.printf("out: %d %d %d %d\n", rc_1.radio_out, rc_2.radio_out, rc_3.radio_out, rc_4.radio_out);
//Serial.printf("yaw: %d ", rc_4.radio_out);
if(frame_type == PLUS_FRAME){
motor_out[RIGHT] = rc_3.radio_out - rc_1.pwm_out;
motor_out[LEFT] = rc_3.radio_out + rc_1.pwm_out;
motor_out[FRONT] = rc_3.radio_out + rc_2.pwm_out;
motor_out[BACK] = rc_3.radio_out - rc_2.pwm_out;
}else{
int roll_out = rc_1.pwm_out / 2;
int pitch_out = rc_2.pwm_out / 2;
motor_out[RIGHT] = rc_3.radio_out - roll_out + pitch_out;
motor_out[LEFT] = rc_3.radio_out + roll_out - pitch_out;
motor_out[FRONT] = rc_3.radio_out + roll_out + pitch_out;
motor_out[BACK] = rc_3.radio_out - roll_out - pitch_out;
}
//Serial.printf("\tb4: %d %d %d %d ", motor_out[RIGHT], motor_out[LEFT], motor_out[FRONT], motor_out[BACK]);
motor_out[RIGHT] += rc_4.pwm_out;
motor_out[LEFT] += rc_4.pwm_out;
motor_out[FRONT] -= rc_4.pwm_out;
motor_out[BACK] -= rc_4.pwm_out;
//Serial.printf("\tl8r: %d %d %d %d\n", motor_out[RIGHT], motor_out[LEFT], motor_out[FRONT], motor_out[BACK]);
motor_out[RIGHT] = constrain(motor_out[RIGHT], out_min, rc_3.radio_max);
motor_out[LEFT] = constrain(motor_out[LEFT], out_min, rc_3.radio_max);
motor_out[FRONT] = constrain(motor_out[FRONT], out_min, rc_3.radio_max);
motor_out[BACK] = constrain(motor_out[BACK], out_min, rc_3.radio_max);
/*
int r_out = ((long)(motor_out[RIGHT] - rc_3.radio_min) * 100) / (long)(rc_3.radio_max - rc_3.radio_min);
int l_out = ((long)(motor_out[LEFT] - rc_3.radio_min) * 100) / (long)(rc_3.radio_max - rc_3.radio_min);
int f_out = ((long)(motor_out[FRONT] - rc_3.radio_min) * 100) / (long)(rc_3.radio_max - rc_3.radio_min);
int b_out = ((long)(motor_out[BACK] - rc_3.radio_min) * 100) / (long)(rc_3.radio_max - rc_3.radio_min);
//*/
//
/* debugging and dynamic kP
num++;
if (num > 50){
num = 0;
//Serial.printf("control_in: %d ", rc_3.control_in);
//Serial.printf(" servo: %d %d %d %d\t", rc_1.servo_out, rc_2.servo_out, rc_3.servo_out, rc_4.servo_out);
//Serial.printf(" cwm: %d %d %d %d, %d\t", rc_1.pwm_out, rc_2.pwm_out, rc_3.pwm_out, rc_4.pwm_out, rc_3.radio_out);
//Serial.printf(" out: %d %d %d %d\n", r_out, l_out, f_out, b_out);
//Serial.printf(" pwm: %d, %d %d %d %d\n",rc_3.pwm_out, motor_out[RIGHT], motor_out[LEFT], motor_out[FRONT], motor_out[BACK]);
pid_stabilize_roll.kP((float)rc_6.control_in / 1000);
stabilize_rate_roll_pitch = pid_stabilize_roll.kP() *.25;
init_pids();
//Serial.print("kP: ");
//Serial.println(pid_stabilize_roll.kP(),3);
}
// out: 41 38 39 39
// pwm: 358, 1412 1380 1395 1389
//*/
//Serial.printf("set: %d %d %d %d\n", motor_out[RIGHT], motor_out[LEFT], motor_out[FRONT], motor_out[BACK]);
//Serial.printf("s: %d %d %d\t\t", (int)roll_sensor, (int)pitch_sensor, (int)yaw_sensor);
///Serial.printf("outmin: %d\n", out_min);
/*
write_int(r_out);
write_int(l_out);
write_int(f_out);
write_int(b_out);
write_int((int)(roll_sensor / 100));
write_int((int)(pitch_sensor / 100));
write_int((int)(yaw_sensor / 100));
write_int((int)(yaw_error / 100));
write_int((int)(current_loc.alt));
write_int((int)(altitude_error));
flush(10);
//*/
// Send commands to motors
if(rc_3.servo_out > 0){
APM_RC.OutputCh(CH_1, motor_out[RIGHT]);
APM_RC.OutputCh(CH_2, motor_out[LEFT]);
APM_RC.OutputCh(CH_3, motor_out[FRONT]);
APM_RC.OutputCh(CH_4, motor_out[BACK]);
}else{
APM_RC.OutputCh(CH_1, rc_3.radio_min);
APM_RC.OutputCh(CH_2, rc_3.radio_min);
APM_RC.OutputCh(CH_3, rc_3.radio_min);
APM_RC.OutputCh(CH_4, rc_3.radio_min);
}
// InstantPWM
APM_RC.Force_Out0_Out1();
APM_RC.Force_Out2_Out3();
}else{
// Send commands to motors
APM_RC.OutputCh(CH_1, rc_3.radio_min);
APM_RC.OutputCh(CH_2, rc_3.radio_min);
APM_RC.OutputCh(CH_3, rc_3.radio_min);
APM_RC.OutputCh(CH_4, rc_3.radio_min);
// reset I terms of PID controls
reset_I();
// Initialize yaw command to actual yaw when throttle is down...
rc_4.control_in = ToDeg(yaw);
}
}

9
ArduCopterMega/setup.pde
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@ -280,6 +280,15 @@ setup_radio(uint8_t argc, const Menu::arg *argv) @@ -280,6 +280,15 @@ setup_radio(uint8_t argc, const Menu::arg *argv)
rc_6.radio_max = rc_6.radio_in;
rc_7.radio_max = rc_7.radio_in;
rc_8.radio_max = rc_8.radio_in;
rc_1.radio_trim = rc_1.radio_in;
rc_2.radio_trim = rc_2.radio_in;
rc_4.radio_trim = rc_4.radio_in;
// 3 is not trimed
rc_5.radio_trim = 1500;
rc_6.radio_trim = 1500;
rc_7.radio_trim = 1500;
rc_8.radio_trim = 1500;
Serial.printf_P(PSTR("\nMove all controls to each extreme. Hit Enter to save: "));
while(1){

7
ArduCopterMega/system.pde
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@ -96,7 +96,9 @@ void init_ardupilot() @@ -96,7 +96,9 @@ void init_ardupilot()
read_EEPROM_startup(); // Read critical config information to start
init_pids();
init_radio();
init_rc_in(); // sets up rc channels from radio
init_rc_out(); // sets up the timer libs
init_camera();
adc.Init(); // APM ADC library initialization
APM_BMP085.Init(); // APM Abs Pressure sensor initialization
DataFlash.Init(); // DataFlash log initialization
@ -233,7 +235,8 @@ void startup_ground(void) @@ -233,7 +235,8 @@ void startup_ground(void)
// read the radio to set trims
// ---------------------------
trim_radio();
// I am disabling this. It's not appropriate for Copters, only planes
//trim_radio();
// Warm up and read Gyro offsets
// -----------------------------

90
ArduCopterMega/test.pde
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@ -7,6 +7,7 @@ static int8_t test_stabilize(uint8_t argc, const Menu::arg *argv); @@ -7,6 +7,7 @@ static int8_t test_stabilize(uint8_t argc, const Menu::arg *argv);
static int8_t test_gps(uint8_t argc, const Menu::arg *argv);
static int8_t test_imu(uint8_t argc, const Menu::arg *argv);
static int8_t test_gyro(uint8_t argc, const Menu::arg *argv);
static int8_t test_dcm(uint8_t argc, const Menu::arg *argv);
static int8_t test_omega(uint8_t argc, const Menu::arg *argv);
static int8_t test_battery(uint8_t argc, const Menu::arg *argv);
static int8_t test_relay(uint8_t argc, const Menu::arg *argv);
@ -44,6 +45,7 @@ const struct Menu::command test_menu_commands[] PROGMEM = { @@ -44,6 +45,7 @@ const struct Menu::command test_menu_commands[] PROGMEM = {
{"gps", test_gps},
{"imu", test_imu},
{"gyro", test_gyro},
{"dcm", test_dcm},
{"omega", test_omega},
{"battery", test_battery},
{"relay", test_relay},
@ -109,7 +111,7 @@ test_radio(uint8_t argc, const Menu::arg *argv) @@ -109,7 +111,7 @@ test_radio(uint8_t argc, const Menu::arg *argv)
// read the radio to set trims
// ---------------------------
trim_radio();
//trim_radio();
while(1){
delay(20);
@ -146,27 +148,16 @@ test_stabilize(uint8_t argc, const Menu::arg *argv) @@ -146,27 +148,16 @@ test_stabilize(uint8_t argc, const Menu::arg *argv)
{
print_hit_enter();
delay(1000);
//imu.init_gyro();
// read the radio to set trims
// ---------------------------
trim_radio();
// setup the radio
// ---------------
init_rc_in();
control_mode = STABILIZE;
Serial.printf_P(PSTR("pid_stabilize_roll.kP: "));
Serial.println(pid_stabilize_roll.kP(),3);
Serial.printf_P(PSTR("max_stabilize_dampener:%d\n\n "), max_stabilize_dampener);
/*
Serial.printf_P(PSTR("pid_yaw.kP: "));
Serial.println(pid_yaw.kP(),3);
Serial.printf_P(PSTR("max_yaw_dampener:%d\n\n "), max_yaw_dampener);
Serial.printf_P(PSTR("stabilize_rate_yaw "));
Serial.print(stabilize_rate_yaw, 3);
Serial.printf_P(PSTR("stabilze_yaw_dampener "));
Serial.print(stabilze_yaw_dampener, 3);
Serial.printf_P(PSTR("\n\n "));
*/
motor_armed = true;
while(1){
@ -319,6 +310,71 @@ test_gyro(uint8_t argc, const Menu::arg *argv) @@ -319,6 +310,71 @@ test_gyro(uint8_t argc, const Menu::arg *argv)
}
}
static int8_t
test_dcm(uint8_t argc, const Menu::arg *argv)
{
print_hit_enter();
delay(1000);
Serial.printf_P(PSTR("Gyro | Accel\n"));
Vector3f _cam_vector;
Vector3f _out_vector;
G_Dt = .02;
while(1){
for(byte i = 0; i <= 50; i++){
delay(20);
// IMU
// ---
read_AHRS();
}
Matrix3f temp = dcm.get_dcm_matrix();
Matrix3f temp_t = dcm.get_dcm_transposed();
Serial.printf_P(PSTR("dcm\n"
"%d \t %d \t %d \n"
"%d \t %d \t %d \n"
"%d \t %d \t %d \n\n"),
(int)(temp.a.x * 100), (int)(temp.a.y * 100), (int)(temp.a.z * 100),
(int)(temp.b.x * 100), (int)(temp.b.y * 100), (int)(temp.b.z * 100),
(int)(temp.c.x * 100), (int)(temp.c.y * 100), (int)(temp.c.z * 100));
Serial.printf_P(PSTR("dcm T\n"
"%d \t %d \t %d \n"
"%d \t %d \t %d \n"
"%d \t %d \t %d \n\n"),
(int)(temp_t.a.x * 100), (int)(temp_t.a.y * 100), (int)(temp_t.a.z * 100),
(int)(temp_t.b.x * 100), (int)(temp_t.b.y * 100), (int)(temp_t.b.z * 100),
(int)(temp_t.c.x * 100), (int)(temp_t.c.y * 100), (int)(temp_t.c.z * 100));
int _pitch = degrees(-asin(temp.c.x));
int _roll = degrees(atan2(temp.c.y, temp.c.z));
int _yaw = degrees(atan2(temp.b.x, temp.a.x));
Serial.printf_P(PSTR( "angles\n"
"%d \t %d \t %d\n\n"),
_pitch, _roll, _yaw);
int _pitch_t = degrees(-asin(temp_t.c.x));
int _roll_t = degrees(atan2(temp_t.c.y, temp_t.c.z));
int _yaw_t = degrees(atan2(temp_t.b.x, temp_t.a.x));
Serial.printf_P(PSTR( "angles_t\n"
"%d \t %d \t %d\n\n"),
_pitch_t, _roll_t, _yaw_t);
//_out_vector = _cam_vector * temp;
//Serial.printf_P(PSTR( "cam\n"
// "%d \t %d \t %d\n\n"),
// (int)temp.a.x * 100, (int)temp.a.y * 100, (int)temp.a.x * 100);
if(Serial.available() > 0){
return (0);
}
}
}
/*
static int8_t
test_dcm(uint8_t argc, const Menu::arg *argv)

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