Diff: main.cpp

Revision:

33:cff70742569d

Parent:

31:1b2a1bd1bccb

Child:

34:702246639f02

--- a/main.cpp	Wed Mar 23 10:53:59 2022 +0000
+++ b/main.cpp	Thu May 05 07:41:46 2022 +0000
@@ -1,6 +1,10 @@
-#include "mbed.h"
+#include <mbed.h>
+#include <math.h>
+
 #include "PM2_Libary.h"
 
+# define M_PI 3.14159265358979323846  /* pi */
+
 // logical variable main task
 bool do_execute_main_task = false;  // this variable will be toggled via the user button (blue button) to or not to execute the main task
 
@@ -11,65 +15,17 @@
 void user_button_released_fcn();
 
 // while loop gets executed every main_task_period_ms milliseconds
-int main_task_period_ms = 50;   // define main task period time in ms e.g. 50 ms -> main task runns 20 times per second
+int main_task_period_ms = 200;   // define main task period time in ms e.g. 50 ms -> main task runns 20 times per second
 Timer main_task_timer;          // create Timer object which we use to run the main task every main task period time in ms
 
 // led on nucleo board
 DigitalOut user_led(LED1);      // create DigitalOut object to command user led
 
-// additional Led
-DigitalOut extra_led(PB_9);     // create DigitalOut object to command extra led (do add an aditional resistor, e.g. 220...500 Ohm)
-
-// mechanical button
-DigitalIn mechanical_button(PC_5);  // create DigitalIn object to evaluate extra mechanical button, you need to specify the mode for proper usage, see below
-
-// Sharp GP2Y0A41SK0F, 4-40 cm IR Sensor
-float ir_distance_mV = 0.0f;    // define variable to store measurement
-AnalogIn ir_analog_in(PC_2);    // create AnalogIn object to read in infrared distance sensor, 0...3.3V are mapped to 0...1
-
-// 78:1, 100:1, ... Metal Gearmotor 20Dx44L mm 12V CB
-DigitalOut enable_motors(PB_15);    // create DigitalOut object to enable dc motors
-
-float   pwm_period_s = 0.00005f;    // define pwm period time in seconds and create FastPWM objects to command dc motors
-FastPWM pwm_M1(PB_13);              // motor M1 is used open loop
-FastPWM pwm_M2(PA_9);               // motor M2 is closed-loop speed controlled (angle velocity)
-FastPWM pwm_M3(PA_10);              // motor M3 is closed-loop position controlled (angle controlled)
-
-EncoderCounter  encoder_M1(PA_6, PC_7); // create encoder objects to read in the encoder counter values
-EncoderCounter  encoder_M2(PB_6, PB_7);
-EncoderCounter  encoder_M3(PA_0, PA_1);
-
-// create SpeedController and PositionController objects, default parametrization is for 78.125:1 gear box
-float max_voltage = 12.0f;                  // define maximum voltage of battery packs, adjust this to 6.0f V if you only use one batterypack
-float counts_per_turn = 20.0f * 78.125f;    // define counts per turn at gearbox end: counts/turn * gearratio
-float kn = 180.0f / 12.0f;                  // define motor constant in rpm per V
-float k_gear = 100.0f / 78.125f;            // define additional ratio in case you are using a dc motor with a different gear box, e.g. 100:1
-float kp = 0.1f;                            // define custom kp, this is the default speed controller gain for gear box 78.125:1
-
-// SpeedController speedController_M2(counts_per_turn, kn, max_voltage, pwm_M2, encoder_M2); // default 78.125:1 gear box  with default contoller parameters
-SpeedController speedController_M2(counts_per_turn * k_gear, kn / k_gear, max_voltage, pwm_M2, encoder_M2); // parameters adjusted to 100:1 gear
-
-float max_speed_rps = 0.5f;                 // define maximum speed that the position controller is changig the speed, has to be smaller or equal to kn * max_voltage
-// PositionController positionController_M3(counts_per_turn, kn, max_voltage, pwm_M3, encoder_M3); // default 78.125:1 gear with default contoller parameters
-PositionController positionController_M3(counts_per_turn * k_gear, kn / k_gear, kp * k_gear, max_voltage, pwm_M3, encoder_M3); // parameters adjusted to 100:1 gear, we need a different speed controller gain here
-
-// Futaba Servo S3001 20mm 3kg Analog
-Servo servo_S1(PB_2);           // create servo objects
-Servo servo_S2(PC_8);
-float servo_S1_angle = 0;       // servo S1 normalized angle
-float servo_S2_angle = 0;       // servo S2 normalized angle
-int servo_period_mus = 20000;   // define servo period time in mus
-
-int servo_counter = 0;          // define servo counter, this is an additional variable to make the servos move
-int loops_per_seconds = static_cast<int>(ceilf(1.0f/(0.001f*(float)main_task_period_ms))); // define loops per second
-
-// Groove Ultrasonic Ranger V2.0
-float us_distance_cm = 0.0f;    // define variable to store measurement
-RangeFinder us_range_finder(PB_12, 5782.0f, 0.02f, 17500); // create range finder object (ultra sonic distance sensor), 20 Hz parametrization
-// RangeFinder us_range_finder(PB_12, 5782.0f, 0.02f,  7000); // create range finder object (ultra sonic distance sensor), 50 Hz parametrization
-
-// LSM9DS1 IMU, carefull: not all PES boards have an imu (chip shortage)
-// LSM9DS1 imu(PC_9, PA_8); // create LSM9DS1 comunication object, if you want to be able to use the imu you need to #include "LSM9DS1_i2c.h"
+I2C i2c(PB_9, PB_8); // I2C (PinName sda, PinName scl)
+SensorBar sensor_bar(i2c, 0.1175f);
+// PinName sda = PB_9;
+// PinName scl = PB_8;
+// SensorBar sensor_bar = SensorBar(0.1175f);
 
 int main()
 {
@@ -80,98 +36,45 @@
     // start timer
     main_task_timer.start();
 
-    // set pullup mode: add resistor between pin and 3.3 V, so that there is a defined potential
-    mechanical_button.mode(PullUp);
-
-    // enable hardwaredriver dc motors: 0 -> disabled, 1 -> enabled
-    enable_motors = 1;
-
-    // motor M1 is used open-loop, we need to initialize the pwm and set pwm output to zero at the beginning, range: 0...1 -> u_min...u_max: 0.5 -> 0 V
-    pwm_M1.period(pwm_period_s);
-    pwm_M1.write(0.5f);
-
-    // set the soft pwm period for the servo objects
-    servo_S1.SetPeriod(servo_period_mus);
-    servo_S2.SetPeriod(servo_period_mus);
+    // sensor_bar.setBarStrobe();
+    // sensor_bar.clearBarStrobe();  // to illuminate all the time
+    // sensor_bar.clearInvertBits(); // to make the bar look for a dark line on a reflective surface
+    // sensor_bar.begin();
 
     while (true) { // this loop will run forever
 
         main_task_timer.reset();
 
+        /*
         if (do_execute_main_task) {
-
-            // read analog input
-            ir_distance_mV = 1.0e3f * ir_analog_in.read() * 3.3f;
-
-            // command dc motors if mechanical button is pressed
-            if (mechanical_button.read()) {
-                pwm_M1.write(0.75f); // write output voltage to motor M1
-                speedController_M2.setDesiredSpeedRPS(0.5f); // set a desired speed for speed controlled dc motors M2
-                positionController_M3.setDesiredRotation(1.5f, max_speed_rps); // set a desired rotation for position controlled dc motors M3
-            } else {
-                pwm_M1.write(0.5f);
-                speedController_M2.setDesiredSpeedRPS(0.0f);
-                positionController_M3.setDesiredRotation(0.0f, max_speed_rps);
-            }
-
-            // check if servos are enabled
-            if (!servo_S1.isEnabled()) servo_S1.Enable();
-            if (!servo_S2.isEnabled()) servo_S2.Enable();
-            // command servo position, this needs to be calibrated
-            servo_S1.SetPosition(servo_S1_angle);
-            if (servo_S1_angle < 1.0f & servo_counter%loops_per_seconds == 0 & servo_counter != 0) {
-                servo_S1_angle += 0.01f;
-            }
-            servo_S2.SetPosition(servo_S2_angle);
-            if (servo_S2_angle < 1.0f & servo_counter%loops_per_seconds == 0 & servo_counter != 0) {
-                servo_S2_angle += 0.01f;
-            }
-            servo_counter++;
-
-            // read ultra sonic distance sensor
-            us_distance_cm = us_range_finder.read_cm();
-
-            // visual feedback that the main task is executed
-            extra_led = 1;
-
         } else {
 
-            ir_distance_mV = 0.0f;
+        }
+        */
 
-            pwm_M1.write(0.5f);
-            speedController_M2.setDesiredSpeedRPS(0.0f);
-            positionController_M3.setDesiredRotation(0.0f, max_speed_rps);
+        // sensor_bar.update();
+
+        printf("---\r\n");
 
-            servo_S1_angle = 0;
-            servo_S2_angle = 0;
-            // servo_S1.SetPosition(servo_S1_angle);
-            // servo_S2.SetPosition(servo_S2_angle);
-            if (servo_S1.isEnabled()) servo_S1.Disable();
-            if (servo_S2.isEnabled()) servo_S2.Disable();
+        uint8_t sensor_bar_raw_value = sensor_bar.getRaw();
+        for( int i = 7; i >= 0; i-- ) {
+            printf("%d", (sensor_bar_raw_value >> i) & 0x01);
+        }
+        printf("\r\n");
 
-            us_distance_cm = 0.0f;
+        int8_t sensor_bar_binaryPosition = sensor_bar.getBinaryPosition();       
+        printf("%d\r\n", sensor_bar_binaryPosition);
 
-            extra_led = 0;
-        }
+        uint8_t sensor_bar_nrOfLedsActive = sensor_bar.getNrofLedsActive();
+        printf("%d\r\n", sensor_bar_nrOfLedsActive);
+        
+        float sensor_bar_angleRad = sensor_bar.getAngleRad();
+        printf("%f\r\n", sensor_bar_angleRad * 180.0f / M_PI);
 
         user_led = !user_led;
 
         // do only output via serial what's really necessary (this makes your code slow)
-        printf("IR sensor (mV): %3.3f, Encoder M1: %3d, Speed M2 (rps) %3.3f, Position M3 (rot): %3.3f, Servo S1 angle (normalized): %3.3f, Servo S2 angle (normalized): %3.3f, US sensor (cm): %3.3f\r\n",
-               ir_distance_mV,
-               encoder_M1.read(),
-               speedController_M2.getSpeedRPS(),
-               positionController_M3.getRotation(),
-               servo_S1_angle,
-               servo_S2_angle,
-               us_distance_cm);
-
-        // read out the imu, the actual frames of the sensor reading needs to be figured out
-        // imu.updateGyro();
-        // imu.updateAcc();
-        // imu.updateMag();
-        // printf("%.6f, %.6f, %.6f, %.6f, %.6f, %.6f, %.6f, %.6f, %.6f\r\n", imu.readGyroX(), imu.readGyroY(), imu.readGyroZ(),
-        // imu.readAccX(), imu.readAccY(), imu.readAccZ(), imu.readMagX(), imu.readMagY(), imu.readMagZ());
+        // printf("%d, %d\r\n", sensor_bar_raw_value_time_ms, sensor_bar_position_time_ms);
 
         // read timer and make the main thread sleep for the remaining time span (non blocking)
         int main_task_elapsed_time_ms = std::chrono::duration_cast<std::chrono::milliseconds>(main_task_timer.elapsed_time()).count();