Diff: main.cpp

Revision:

35:871447da961d

Parent:

34:a5724eeaaf9d

Child:

37:b7acef59086c

--- a/main.cpp	Wed Mar 27 19:05:34 2019 +0000
+++ b/main.cpp	Wed Nov 11 17:32:22 2020 +0000
@@ -21,6 +21,24 @@
 #include "simple-mbed-cloud-client.h"
 #include "LittleFileSystem.h"
 
+#include "stdbool.h" //for stepper motor function
+
+#define STEPPER_PIN_1 PA_15  //ARD.D9-PWM PA15
+#define STEPPER_PIN_2 PA_2 //ARD.D10-PWM PA2
+#define STEPPER_PIN_3 PA_7 //ARD.D11-PWM PA7
+#define STEPPER_PIN_4 PA_6 //ARD.D12-PWM PA6
+ 
+DigitalOut steeperOne(STEPPER_PIN_1);
+DigitalOut steeperTwo(STEPPER_PIN_2);
+DigitalOut steeperThree(STEPPER_PIN_3);
+DigitalOut steeperFour(STEPPER_PIN_4);
+ 
+DigitalOut myIOs(PB_14); // review the results on PB_14
+DigitalOut myIOs2(PA_5); // review the results on PA_5
+int step_number=0;
+int open_flag=0;
+int close_flag=0;
+
 // Default network interface object. Don't forget to change the WiFi SSID/password in mbed_app.json if you're using WiFi.
 NetworkInterface *net;
 
@@ -48,19 +66,15 @@
 #define SEND_ALL_SENSORS
 
 // Sensors related includes and initialization
-#include "HTS221Sensor.h"
-#include "LPS22HBSensor.h"
-#include "LSM6DSLSensor.h"
-#include "lis3mdl_class.h"
-#include "VL53L0X.h"
+#include "HTS221Sensor.h" //humidity and temperature
+#include "LPS22HBSensor.h"  //Barometer
 
 static DevI2C devI2c(PB_11,PB_10);
 static HTS221Sensor sen_hum_temp(&devI2c);
 static LPS22HBSensor sen_press_temp(&devI2c);
-static LSM6DSLSensor sen_acc_gyro(&devI2c,LSM6DSL_ACC_GYRO_I2C_ADDRESS_LOW,PD_11); // low address
-static LIS3MDL sen_mag(&devI2c);
 static DigitalOut shutdown_pin(PC_6);
-static VL53L0X sen_distance(&devI2c, &shutdown_pin, PC_7);
+//static VL53L0X sen_distance(&devI2c, &shutdown_pin, PC_7);
+
 // Temperature reading from microcontroller
 AnalogIn adc_temp(ADC_TEMP);
 // Voltage reference reading from microcontroller
@@ -73,21 +87,8 @@
 // Additional resources for sensor readings
 #ifdef SEND_ALL_SENSORS
 MbedCloudClientResource *res_humidity;
-MbedCloudClientResource *res_temperature;
 MbedCloudClientResource *res_pressure;
-MbedCloudClientResource *res_temperature2;
-MbedCloudClientResource *res_magnometer_x;
-MbedCloudClientResource *res_magnometer_y;
-MbedCloudClientResource *res_magnometer_z;
-MbedCloudClientResource *res_accelerometer_x;
-MbedCloudClientResource *res_accelerometer_y;
-MbedCloudClientResource *res_accelerometer_z;
-MbedCloudClientResource *res_gyroscope_x;
-MbedCloudClientResource *res_gyroscope_y;
-MbedCloudClientResource *res_gyroscope_z;
-MbedCloudClientResource *res_distance;
 MbedCloudClientResource *res_adc_temp;
-MbedCloudClientResource *res_adc_voltage;
 #endif /* SEND_ALL_SENSORS */
 
 // An event queue is a very useful structure to debounce information between contexts (e.g. ISR and normal threads)
@@ -121,16 +122,87 @@
     }
     printf("\n");
 }
+//Serial port define for uart1 usb
+//pb7 rx
+//pb6 tx
+//Serial device(USBTX, USBRX);
+Serial device(PB_6, PB_7);  // tx, rx
+
 
 /**
  * Button function triggered by the physical button press.
  */
+ 
+ 
+ 
+ 
+ void Tx_interrupt();
+void Rx_interrupt();
+void send_line();
+void read_line();
+ 
+ 
+// Circular buffers for serial TX and RX data - used by interrupt routines
+const int buffer_size = 255;
+// might need to increase buffer size for high baud rates
+char tx_buffer[buffer_size+1];
+char rx_buffer[buffer_size+1];
+// Circular buffer pointers
+// volatile makes read-modify-write atomic 
+volatile int tx_in=0;
+volatile int tx_out=0;
+volatile int rx_in=0;
+volatile int rx_out=0;
+// Line buffers for sprintf and sscanf
+char tx_line[80];
+char rx_line[80];
+
+     int i=0;
+    int rx_i=0;
+    device.baud(115200);
+ 
+// Setup a serial interrupt function to receive data
+    device.attach(&Rx_interrupt, Serial::RxIrq);
+// Setup a serial interrupt function to transmit data
+    device.attach(&Tx_interrupt, Serial::TxIrq);
+ 
+ 
 void button_press() {
     int v = res_button->get_value_int() + 1;
     res_button->set_value(v);
     printf("*** Button clicked %d times                                 \n", v);
 }
-
+ 
+// Called everytime a new character goes into
+// the RX buffer. Test that character for \n
+// Note, rxGetLastChar() gets the last char that
+// we received but it does NOT remove it from
+// the RX buffer.
+void read_line() {
+    int i;
+    i = 0;
+// Start Critical Section - don't interrupt while changing global buffer variables
+    NVIC_DisableIRQ(UART1_IRQn);
+// Loop reading rx buffer characters until end of line character
+    while ((i==0) || (rx_line[i-1] != '\r')) {
+// Wait if buffer empty
+        if (rx_in == rx_out) {
+// End Critical Section - need to allow rx interrupt to get new characters for buffer
+            NVIC_EnableIRQ(UART1_IRQn);
+            while (rx_in == rx_out) {
+            }
+// Start Critical Section - don't interrupt while changing global buffer variables
+            NVIC_DisableIRQ(UART1_IRQn);
+        }
+        rx_line[i] = rx_buffer[rx_out];
+        i++;
+        rx_out = (rx_out + 1) % buffer_size;
+    }
+// End Critical Section
+    NVIC_EnableIRQ(UART1_IRQn);
+    rx_line[i-1] = 0;
+    return;
+}
 /**
  * Notification callback handler
  * @param resource The resource that triggered the callback
@@ -149,35 +221,96 @@
     endpointInfo = endpoint;
 }
 
+/*
+    for one rotation when passed true or false in function OneStep(bool)
+*/
+void OneStep(bool dir){
+if(dir)
+{
+    switch(step_number){
+      case 0:
+          steeperOne =1;
+          steeperTwo =0;
+          steeperThree =0;
+          steeperFour =0;
+        break;
+      case 1:
+          steeperOne =0;
+          steeperTwo =1;
+          steeperThree =0;
+          steeperFour =0;
+        break;
+      case 2:
+          steeperOne =0;
+          steeperTwo =0;
+          steeperThree =1;
+          steeperFour =0;
+        break;
+      case 3:
+          steeperOne =0;
+          steeperTwo =0;
+          steeperThree =0;
+          steeperFour =1;
+         break;
+        }// end of switch 
+}// end of if
+  
+else
+{
+    switch(step_number){
+      case 0:
+          steeperOne =0;
+          steeperTwo =0;
+          steeperThree =0;
+          steeperFour =1;
+        break;
+      case 1:
+          steeperOne =0;
+          steeperTwo =0;
+          steeperThree =1;
+          steeperFour =0;
+        break;
+      case 2:
+          steeperOne =0;
+          steeperTwo =1;
+          steeperThree =0;
+          steeperFour =0;
+        break;
+      case 3:
+          steeperOne =1;
+          steeperTwo =0;
+          steeperThree =0;
+          steeperFour =0;
+        break;
+ 
+  
+    }// end of switch
+  }// end of else
+step_number++;
+  if(step_number > 3){
+    step_number = 0;
+  }
+} // end of OneStep() function
 /**
  * Initialize sensors
  */
 void sensors_init() {
-    uint8_t id1, id2, id3, id4;
+    uint8_t id1, id2;
 
     printf ("\nSensors configuration:\n");
     // Initialize sensors
     sen_hum_temp.init(NULL);
     sen_press_temp.init(NULL);
-    sen_acc_gyro.init(NULL);
-    sen_mag.init(NULL);
-    sen_distance.init_sensor(VL53L0X_DEFAULT_ADDRESS);
 
     /// Call sensors enable routines
     sen_hum_temp.enable();
     sen_press_temp.enable();
-    sen_acc_gyro.enable_x();
-    sen_acc_gyro.enable_g();
 
     sen_hum_temp.read_id(&id1);
     sen_press_temp.read_id(&id2);
-    sen_mag.read_id(&id3);
-    sen_acc_gyro.read_id(&id4);
 
     printf("HTS221  humidity & temperature    = 0x%X\n", id1);
     printf("LPS22HB pressure & temperature    = 0x%X\n", id2);
-    printf("LIS3MDL magnetometer              = 0x%X\n", id3);
-    printf("LSM6DSL accelerometer & gyroscope = 0x%X\n", id4);
 
     printf("\n"); ;
 }
@@ -187,64 +320,61 @@
  * This function is called periodically.
  */
 void sensors_update() {
-    float temp1_value, temp2_value, temp3_value, humid_value, pressure_value, volt_value = 0.0;
-    int32_t m_axes[3], a_axes[3], g_axes[3];
-    uint32_t distance_value, distance_reading;
+    float temp3_value, humid_value, pressure_value = 0.0;
 
     sen_hum_temp.get_humidity(&humid_value);
-    sen_hum_temp.get_temperature(&temp1_value);
     sen_press_temp.get_pressure(&pressure_value);
-    sen_press_temp.get_temperature(&temp2_value);
-    sen_mag.get_m_axes(m_axes);
-    sen_acc_gyro.get_x_axes(a_axes);
-    sen_acc_gyro.get_g_axes(g_axes);
-    distance_reading = sen_distance.get_distance(&distance_value);
     temp3_value = adc_temp.read()*100;
-    volt_value = adc_vref.read();
-
-    float mag_x =  (double)m_axes[0] / 1000.0, mag_y  = (double)m_axes[1] / 1000.0, mag_z  = (double)m_axes[2] / 1000.0;
-    float acc_x =  (double)a_axes[0] / 1000.0, acc_y  = (double)a_axes[1] / 1000.0, acc_z  = (double)a_axes[2] / 1000.0;
-    float gyro_x = (double)g_axes[0] / 1000.0, gyro_y = (double)g_axes[1] / 1000.0, gyro_z = (double)g_axes[2] / 1000.0;
-
-    printf("                                                             \n");
-    printf("ADC temp:     %5.4f C,  vref:      %5.4f V         \n", temp3_value, volt_value);
-    printf("HTS221 temp:  %7.3f C,  humidity: %7.2f %%         \n", temp1_value, humid_value);
-    printf("LPS22HB temp: %7.3f C,  pressure: %7.2f mbar       \n", temp2_value, pressure_value);
-    printf("LIS3MDL mag:  %7.3f x, %7.3f y, %7.3f z [gauss]      \n", mag_x, mag_y, mag_z);
-    printf("LSM6DSL acc:  %7.3f x, %7.3f y, %7.3f z [g]          \n", acc_x, acc_y, acc_z);
-    printf("LSM6DSL gyro: %7.3f x, %7.3f y, %7.3f z [dps]        \n", gyro_x, gyro_y, gyro_z);
-    if (distance_reading == VL53L0X_ERROR_NONE) {
-        printf("VL53L0X dist: %7ld mm\n", distance_value);
-    } else {
-        printf("VL53L0X dist:        --       \n");
-        distance_value = 999;
+    
+    printf("%2.0f^%2.0f^%3.0f",temp3_value,humid_value,pressure_value);   
+    printf("\n");
+           
+   // printf ("%02d : %02d : %02d\n", temp3_value, hummitly, pressure);
+    
+// added a new code for stepper motor 
+// if temperature reading is higher, open motor
+    if(temp3_value > 30)
+    {
+       open_flag = 0;
+       while(open_flag==0){
+            OneStep(false);
+            wait(0.01);
+            bool btn_pressed = (button.read() == MBED_CONF_APP_BUTTON_PRESSED_STATE);
+            if (btn_pressed) {
+                printf("Door Opened...\n");
+                open_flag=1;
+                close_flag=0;
+            }//end of if(btn_pressed)
+     }// end of while
+    }// end of if(temp3_value>20)
+    // now we expect to close
+    
+    if(temp3_value < 20)//door has to close
+    {
+        close_flag = 0;
+        while(close_flag==0){
+            OneStep(true);
+            wait(0.01);
+            bool btn_pressed = (button.read() == MBED_CONF_APP_BUTTON_PRESSED_STATE);
+            if (btn_pressed) {
+                printf("Door Closed...\n");
+                open_flag=0;
+                close_flag=1;
+            }//end of if(btn_pressed)
+     }// end of while     
     }
 
-    printf("\r\033[8A");
-
     if (endpointInfo) {
 #ifdef SEND_ALL_SENSORS
         res_humidity->set_value(humid_value);
-        res_temperature->set_value(temp1_value);
         res_pressure->set_value(pressure_value);
-        res_temperature2->set_value(temp2_value);
-        res_magnometer_x->set_value(mag_x);
-        res_magnometer_y->set_value(mag_y);
-        res_magnometer_z->set_value(mag_z);
-        res_accelerometer_x->set_value(acc_x);
-        res_accelerometer_y->set_value(acc_y);
-        res_accelerometer_z->set_value(acc_z);
-        res_gyroscope_x->set_value(gyro_x);
-        res_gyroscope_y->set_value(gyro_y);
-        res_gyroscope_z->set_value(gyro_z);
-        res_distance->set_value((int)distance_value);
         res_adc_temp->set_value(temp3_value);
-        res_adc_voltage->set_value(volt_value);
 #endif /* SEND_ALL_SENSORS */
     }
 }
 
-int main(void) {
+int main(void) 
+{
     printf("\nStarting Simple Pelion Device Management Client example\n");
 
     int storage_status = fs.mount(&sd);
@@ -314,85 +444,26 @@
 
 #ifdef SEND_ALL_SENSORS
     // Sensor resources
-    res_temperature = client.create_resource("3303/0/5700", "Temperature HTS221 (C)");
+/*    res_temperature = client.create_resource("3303/0/5700", "Temperature HTS221 (C)");
     res_temperature->set_value(0);
     res_temperature->methods(M2MMethod::GET);
-    res_temperature->observable(true);
+    res_temperature->observable(true);*/
 
     res_humidity = client.create_resource("3304/0/5700", "Humidity");
     res_humidity->set_value(0);
     res_humidity->methods(M2MMethod::GET);
     res_humidity->observable(true);
 
-    res_temperature2 = client.create_resource("3303/1/5700", "Temperature LPS22HB (C)");
-    res_temperature2->set_value(0);
-    res_temperature2->methods(M2MMethod::GET);
-    res_temperature2->observable(true);
-
     res_adc_temp = client.create_resource("3303/2/5700", "Temperature ADC (C)");
     res_adc_temp->set_value(0);
     res_adc_temp->methods(M2MMethod::GET);
     res_adc_temp->observable(true);
 
-    res_accelerometer_x = client.create_resource("3313/0/5702", "Accelerometer X");
-    res_accelerometer_x->set_value(0);
-    res_accelerometer_x->methods(M2MMethod::GET);
-    res_accelerometer_x->observable(true);
-
-    res_accelerometer_y = client.create_resource("3313/0/5703", "Accelerometer Y");
-    res_accelerometer_y->set_value(0);
-    res_accelerometer_y->methods(M2MMethod::GET);
-    res_accelerometer_y->observable(true);
-
-    res_accelerometer_z = client.create_resource("3313/0/5704", "Accelerometer Z");
-    res_accelerometer_z->set_value(0);
-    res_accelerometer_z->methods(M2MMethod::GET);
-    res_accelerometer_z->observable(true);
-
-    res_magnometer_x = client.create_resource("3314/0/5702", "Magnometer X");
-    res_magnometer_x->set_value(0);
-    res_magnometer_x->methods(M2MMethod::GET);
-    res_magnometer_x->observable(true);
-
-    res_magnometer_y = client.create_resource("3314/0/5703", "Magnometer Y");
-    res_magnometer_y->set_value(0);
-    res_magnometer_y->methods(M2MMethod::GET);
-    res_magnometer_y->observable(true);
-
-    res_magnometer_z = client.create_resource("3314/0/5704", "Magnometer Z");
-    res_magnometer_z->set_value(0);
-    res_magnometer_z->methods(M2MMethod::GET);
-    res_magnometer_z->observable(true);
-
-    res_gyroscope_x = client.create_resource("3334/0/5702", "Gyroscope X");
-    res_gyroscope_x->set_value(0);
-    res_gyroscope_x->methods(M2MMethod::GET);
-    res_gyroscope_x->observable(true);
-
-    res_gyroscope_y = client.create_resource("3334/0/5703", "Gyroscope Y");
-    res_gyroscope_y->set_value(0);
-    res_gyroscope_y->methods(M2MMethod::GET);
-    res_gyroscope_y->observable(true);
-
-    res_gyroscope_z = client.create_resource("3334/0/5704", "Gyroscope Z");
-    res_gyroscope_z->set_value(0);
-    res_gyroscope_z->methods(M2MMethod::GET);
-    res_gyroscope_z->observable(true);
-
-    res_adc_voltage = client.create_resource("3316/0/5700", "Voltage");
-    res_adc_voltage->set_value(0);
-    res_adc_voltage->methods(M2MMethod::GET);
-    res_adc_voltage->observable(true);
-
     res_pressure = client.create_resource("3323/0/5700", "Pressure");
     res_pressure->set_value(0);
     res_pressure->methods(M2MMethod::GET);
     res_pressure->observable(true);
 
-    res_distance = client.create_resource("3330/0/5700", "Distance");
-    res_distance->set_value((float)999.9);
-    res_distance->methods(M2MMethod::GET);
-    res_distance->observable(true);
 #endif /* SEND_ALL_SENSORS */
 
     printf("Initialized Pelion Client. Registering...\n");