Examples clean up

examples/3-Each-module-examples/BME280_test/BME280_test.ino

@@ -15,32 +15,31 @@
   Please maintain this license information along with authorship
   and copyright notices in any redistribution of this code
  */
+#include "Adafruit_BME280.h" 			// Include Adafruit BME280 library
 
-#include "Adafruit_BME280.h" 			// include Adafruit BME280 library
+#define Serial SerialUSB 				// Change default serial to SAMD USB serial
 
-#define Serial SerialUSB 				// change default serial to SAMD USB serial
+#define BME280_ADDRESS_OPEN_CANSAT 0x77 	// Set BME's address (according to the circuit)
+#define SEALEVELPRESSURE_HPA (1013.25) 	// Set sea level pressure value(see: https://en.wikipedia.org/wiki/Atmospheric_pressure)
 
-#define BME280_ADDRESS_OPEN_CANSAT 0x77 	// set BME's address (according to the circuit)
-#define SEALEVELPRESSURE_HPA (1013.25) 	// set sea level pressure value(see: https://en.wikipedia.org/wiki/Atmospheric_pressure)
-
-// create object 'bme' from the library, which will  
+// Create object 'bme' from the library, which will
 // be used to access the library methods by a dot notation
 Adafruit_BME280 bme;
 
-int ms_delay = 500; // Number of milliseconds between each two measurements
+int ms_delay = 500; 			// Number of milliseconds between each two measurements
 
-// epty variables for measured values
+// Empty variables for measured values
 float temperature_bme280 = 0;
 float pressure_bme280 = 0;
 float altitude_bme280 = 0;
 float humidity_bme280 = 0;
 
-// this will only run once
+// This will only run once
 void setup()
 {
-    Serial.begin(57600); // start serial comm with baud rate of 57600Bd
+    Serial.begin(57600); 	// Start serial comm with baud rate of 57600Bd
 
-    // wait for the Arduino serial (on your PC) to connect
+    // Wait for the Arduino serial (on your PC) to connect
     // please, open the Arduino serial console (right top corner)
 	// note that the port may change after uploading the sketch
     // COMMENT OUT FOR USAGE WITHOUT A PC!
@@ -48,7 +47,7 @@ void setup()
 
     Serial.println("openCanSat BME280 test started");
 
-    // begin communication with the BME280 on the previously specified address
+    // Begin communication with the BME280 on the previously specified address
     // print an error to the serial in case the sensor is not found
     if (!bme.begin(BME280_ADDRESS_OPEN_CANSAT))
     {
@@ -56,24 +55,24 @@ void setup()
         return;
     }
     
-    Serial.println(); // print new line on serial to make the output look better :-;
+    Serial.println(); 		// Print new line on serial to make the output look better :-;
 }
 
-// code in this function will run repeatedly
+// Code in this function will run repeatedly
 void loop()
 { 
-  // read values from BME280 into the variables
+  // Read values from BME280 into the variables
   temperature_bme280 = bme.readTemperature();
   pressure_bme280 = bme.readPressure() / 100.0F;
   altitude_bme280 = bme.readAltitude(SEALEVELPRESSURE_HPA);
   humidity_bme280 = bme.readHumidity();
 
-  // print the measured variables to serial
+  // Print the measured variables to serial
   Serial.println("Temperature = " + (String) temperature_bme280 + " °C");  
   Serial.println("Pressure = " + (String) pressure_bme280 + " hPa");
   Serial.println("Approx altitude = " + (String) altitude_bme280 + " m");
   Serial.println("Humidity = " + (String) humidity_bme280 + " %");
   Serial.println();
     
-  delay(ms_delay); // wait a while (defined at the beginning)
+  delay(ms_delay); // Wait a while (defined at the beginning)
 }

examples/3-Each-module-examples/BMP280_test/BMP280_test.ino

@@ -14,9 +14,7 @@
   http://www.gnu.org/licenses/gpl-3.0.txt
   Please maintain this license information along with authorship
   and copyright notices in any redistribution of this code
- 
  */
-
 #include <Adafruit_BMP280.h> // include Adafruit BMP280 library
 
 #define Serial SerialUSB // change default serial to SAMD USB serial
@@ -34,12 +32,12 @@ float temperature_bmp280 = 0;
 float pressure_bmp280 = 0;
 float altitude_bmp280 = 0;
 
-// this will only run once
+// This will only run once
 void setup()
 {
-  Serial.begin(57600); // start serial comm with baud rate of 57600Bd
+  Serial.begin(57600); 	// Start serial comm with baud rate of 57600Bd
 
-  // wait for the Arduino serial (on your PC) to connect
+  // Wait for the Arduino serial (on your PC) to connect
   // please, open the Arduino serial console (right top corner)
   // note that the port may change after uploading the sketch
   // COMMENT OUT FOR USAGE WITHOUT A PC!
@@ -47,7 +45,7 @@ void setup()
   
   Serial.println("openCanSat BMP280 test started");
 
-  // begin communication with the BMP280 on the previously specified address
+  // Begin communication with the BMP280 on the previously specified address
   // print an error to the serial in case the sensor is not found
   if (!bmp.begin(BMP280_ADDRESS))
   {  
@@ -55,22 +53,22 @@ void setup()
     return;
   }
 
-  Serial.println();  // print new line on serial to make the output look better :-;
+  Serial.println();  	// Print new line on serial to make the output look better
 }
 
-// code in this function will run repeatedly
+// Code in this function will run repeatedly
 void loop()
 {   
-    // read values from BME280 into the variables
+    // Read values from BME280 into the variables
     temperature_bmp280 = bmp.readTemperature();
     pressure_bmp280 = bmp.readPressure();
     altitude_bmp280 = bmp.readAltitude(1013.25);
 
-    // print the measured variables to serial
+    // Print the measured variables to serial
     Serial.println("Temperature = " + (String) temperature_bmp280 + " *C");  
     Serial.println("Pressure = " + (String) pressure_bmp280 + " Pa");
     Serial.println("Approx altitude = " + (String) altitude_bmp280 + " m");
     Serial.println();
     
-    delay(ms_delay); // wait a while (defined at the beginning)
+    delay(ms_delay); // Wait a while (defined at the beginning)
 }

examples/3-Each-module-examples/GPS_i2c_test/GPS_i2c_test.ino

@@ -15,15 +15,16 @@
   Please maintain this license information along with authorship
   and copyright notices in any redistribution of this code
  */
+#include "Open_Cansat_GPS.h"
 
 #include <Wire.h>
 
-#include "../../libraries/Open_Cansat_GPS/src/Open_Cansat_GPS.h"
-
 #define Serial SerialUSB
 
 OpenCansatGPS gps;
 
+int ms_delay = 250; // Number of milliseconds for scan and between another scan is done
+
 void setup()
 {
     while (!SerialUSB) {}
@@ -40,10 +41,11 @@ void setup()
 
 void loop()
 {
-	// save start time in millisec
+	// Save start time in millisec
     uint32_t start = millis();
 
-    if (gps.scan(250))
+    // Printing gps values if scan is successful
+    if (gps.scan(ms_delay))
     {
     		Serial.println(String(" time to find fix: ") + (millis() - start) + String("ms"));
     		Serial.println(String(" datetime = ") + gps.getDateTimeString());
@@ -53,5 +55,6 @@ void loop()
     		Serial.println();
     }
 
-    delay(250);
+    // Wait before next measurement
+    delay(ms_delay);
 }

examples/3-Each-module-examples/INA219_test/INA219_test.ino

@@ -15,30 +15,29 @@
   Please maintain this license information along with authorship
   and copyright notices in any redistribution of this code
  */
- 
-#include <Adafruit_INA219.h> // include Adafruit INA219 library
+#include <Adafruit_INA219.h> 	// Include Adafruit INA219 library
 
-#define Serial SerialUSB // change default serial to SAMD USB serial
+#define Serial SerialUSB			// Change default serial to SAMD USB serial
 
-// create object 'ina219' from the library with address 0x40
+// Create object 'ina219' from the library with address 0x40
 // (according to the circuit, which will be used to access the
 // library methods by a dot notation
 Adafruit_INA219 ina219(0x40);
 
 int ms_delay = 500; // Number of milliseconds between each two readings
 
-// empty variables for measured values
+// Empty variables for measured values
 float voltage_shunt = 0;
 float voltage_bus = 0;
 float current_mA = 0;
 float voltage_load = 0;
   
-// this will only run once
+// This will only run once
 void setup(void) 
 { 
   Serial.begin(57600); // start serial comm with baud rate of 57600Bd
 
-  // wait for the Arduino serial (on your PC) to connect
+  // Wait for the Arduino serial (on your PC) to connect
   // please, open the Arduino serial console (right top corner)
   // note that the port may change after uploading the sketch
   // COMMENT OUT FOR USAGE WITHOUT A PC!
@@ -46,26 +45,25 @@ void setup(void)
   
   Serial.println("openCanSat INA219 test started");
 
-  // begin communication with the INA219
+  // Begin communication with the INA219
   ina219.begin();
-  
 }
 
-// code in this function will run repeatedly
+// Code in this function will run repeatedly
 void loop(void)
 {
-  // read values from INA219 into the variables
+  // Read values from INA219 into the variables
   voltage_shunt = ina219.getShuntVoltage_mV();
   voltage_bus = ina219.getBusVoltage_V();
   current_mA = ina219.getCurrent_mA();
   voltage_load = voltage_bus + (voltage_shunt / 1000);
 
-  // print the measured variables to serial
+  // Print the measured variables to serial
   Serial.println("Shunt Voltage: " + (String) voltage_shunt + " mV"); 
   Serial.println("Bus Voltage: " + (String) voltage_bus + " V");
   Serial.println("Current: " + (String) current_mA + " mA");  
   Serial.println("Load Voltage: " + (String) voltage_load + " V"); 
   Serial.println(); 
   
-  delay(ms_delay); // wait a while (defined at the beginning)
+  delay(ms_delay); // Wait a while (defined at the beginning)
 }

examples/3-Each-module-examples/LED_test/LED_test.ino

@@ -15,21 +15,21 @@
   Please maintain this license information along with authorship
   and copyright notices in any redistribution of this code
  */
-
 #include <Arduino.h>
-#define Serial SerialUSB // change default serial to SAMD USB serial
 
-// set LED pins
+#define Serial SerialUSB 	// Change default serial to SAMD USB serial
+
+// Set LED pins
 #define D13_LED 42
 #define M_LED 36
 
-int ms_delay = 2000;  // Number of milliseconds between each two LED changes
+int ms_delay = 2000;  		// Number of milliseconds between each two LED changes
 
 void setup() 
 {
-  Serial.begin(57600); // start serial comm with baud rate of 57600Bd
+  Serial.begin(57600); 		// Start serial comm with baud rate of 57600Bd
 
-  // wait for the Arduino serial (on your PC) to connect
+  // Wait for the Arduino serial (on your PC) to connect
   // please, open the Arduino serial console (right top corner)
   // note that the port may change after uploading the sketch
   // COMMENT OUT FOR USAGE WITHOUT A PC!
@@ -37,43 +37,42 @@ void setup()
   
   Serial.println("openCanSat kit LED test started");
 
-  pinMode(D13_LED, OUTPUT); // configure D13 pin as output
-  
+  pinMode(D13_LED, OUTPUT); 	// Configure D13 pin as output
 }
 
 void loop() 
 {
-  pinMode(M_LED, OUTPUT); // configure MLED as output (it is not, after every loop)
+  pinMode(M_LED, OUTPUT); 	// Configure MLED as output (it is not, after every loop)
   
-  // print the LEDs' status to serial
+  // Print the LEDs' status to serial
   Serial.println("D13: ON");
   Serial.println("MLED: ON, RED");
   Serial.println();
 
-  // turn D13 and MLED-red on
+  // Turn D13 and MLED-red on
   digitalWrite(D13_LED, HIGH);   
   digitalWrite(M_LED, HIGH); 
 
-  delay(ms_delay); // wait a while (defined at the beginning)
+  delay(ms_delay); 			// Wait a while (defined at the beginning)
 
-  // print the LEDs' status to serial
+  // Print the LEDs' status to serial
   Serial.println("D13: OFF");
   Serial.println("MLED: ON, BLUE");
   Serial.println();  
 
-  // turn D13 off and MLED-blue on
+  // Turn D13 off and MLED-blue on
   digitalWrite(D13_LED, LOW);   
   digitalWrite(M_LED, LOW);  
 
-  delay(ms_delay); // wait a while (defined at the beginning)
+  delay(ms_delay); 			// Wait a while (defined at the beginning)
 
-  // print the LEDs' status to serial
+  // Print the LEDs' status to serial
   Serial.println("D13: OFF");
   Serial.println("MLED: OFF");
   Serial.println();
 
   // D13 is already off
-  pinMode(M_LED, INPUT); // configure MLED as input to turn off voltage supply on the pin
+  pinMode(M_LED, INPUT); 	// Configure MLED as input to turn off voltage supply on the pin
   
-  delay(ms_delay); // wait a while (defined at the beginning)
+  delay(ms_delay); 			// Wait a while (defined at the beginning)
 }

examples/3-Each-module-examples/RFM69_receive_test/RFM69_receive_test.ino

@@ -15,7 +15,6 @@
   Please maintain this license information along with authorship
   and copyright notices in any redistribution of this code
  */
-
 #include <RFM69.h> // include RFM69 library
 
 #define Serial SerialUSB // change default serial to SAMD USB serial
@@ -66,10 +65,13 @@ void setup()
 // code in this function will run repeatedly
 void loop()
 {
-	if (radio.receiveDone()) // Got one!
+	// When receive from radio is done
+	if (radio.receiveDone()) // Got one message
 	{
+		// Print node number
 		Serial.println("Received from node " + static_cast<String>(radio.SENDERID));
 
+		// transfer data into structure
 		data = *(message*)radio.DATA;
 
 		Serial.println("Id of received message: " + static_cast<String>(data.messageId));

examples/3-Each-module-examples/RFM69_send_test/RFM69_send_test.ino

@@ -15,19 +15,18 @@
   Please maintain this license information along with authorship
   and copyright notices in any redistribution of this code
  */
+#include <RFM69.h> 				// Include RFM69 library
 
-#include <RFM69.h> // include RFM69 library
-
-#define Serial SerialUSB // change default serial to SAMD USB serial
+#define Serial SerialUSB 		// Change default serial to SAMD USB serial
 
 // RFM69
-#define NETWORKID       0   // Must be the same for all nodes (0 to 255)
-#define MYNODEID        1   // My node ID (0 to 255)
-#define TONODEID        2   // Destination node ID (0 to 254, 255 = broadcast)
+#define NETWORKID       0   		// Must be the same for all nodes (0 to 255)
+#define MYNODEID        1   		// My node ID (0 to 255)
+#define TONODEID        2   		// Destination node ID (0 to 254, 255 = broadcast)
 #define FREQUENCY       RF69_433MHZ
-#define CHIP_SELECT_PIN 43 //radio chip select
-#define INTERUP_PIN     9 //radio interrupt
-#define MS_DELAY        300 // Number of milliseconds between data sending and LED signalization
+#define CHIP_SELECT_PIN 43 		// Radio chip select
+#define INTERUP_PIN     9 		// Radio interrupt
+#define MS_DELAY        300 		// Number of milliseconds between data sending and LED signalization
 
 // Local
 #define PC_BAUDRATE       56700
@@ -42,14 +41,14 @@ typedef struct
   int messageId;
 } message;
 
-message data; //create the struct variable
+message data; // Create the struct object
 
-// this will only run once
+// This setup loop will only run once
 void setup()
 {
-    Serial.begin(PC_BAUDRATE); // start serial comm with baud rate of 57600Bd
+    Serial.begin(PC_BAUDRATE); // Start serial comm with baud rate of 57600Bd
 
-    // wait for the Arduino serial (on your PC) to connect
+    // Wait for the Arduino serial (on your PC) to connect
     // please, open the Arduino serial console (right top corner)
     // note that the port may change after uploading the sketch
     // COMMENT OUT FOR USAGE WITHOUT A PC!
@@ -66,22 +65,24 @@ void setup()
     		Serial.println("RFM69HW initialization failed!");
     }
     
-    Serial.println(); // print new line on serial to make the output look better :-;
+    Serial.println(); // Print new line on serial to make the output look better :-;
 }
 
-// code in this function will run repeatedly
+// Code in this function will run repeatedly
 void loop()
 {