Autopilot Drone

An Arduino Uno autopilot drone with multiple sensors and a wireless camera controlled by two microcontrollers.

Jun 25, 2018

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191 respects

environmental sensing

Devices & Components

Arduino Uno Rev3

flight controller (CC3D)

Drone frames,ESC ,battery 11.1V ,Brushless DC motor

DHT11 Temperature & Humidity Sensor (4 pins)

Bluetooth Low Energy (BLE) Module (Generic)

Software & Tools

drone

Arduino IDE

Project description

Code

interface of Bluetooth module

arduino

this program will show simple led on and off operation using Arduino Uno and Bluetooth

1/* simple program to control a LED on pin 13 of arduino using a bluetooth   module
2*/
3char data = 0;            //Variable for storing received data
4void   setup()
5{
6    Serial.begin(9600);   //Sets the baud for serial data transmission                                
7    pinMode(13, OUTPUT);  //Sets digital pin   13 as output pin
8}
9void loop()
10{
11   if(Serial.available() > 0)      //   Send data only when you receive data:
12   {
13      data = Serial.read();        //Read   the incoming data & store into data
14      Serial.print(data);          //Print   Value inside data in Serial monitor
15      Serial.print("\
16");        
17       if(data == '1')           
18         digitalWrite(13, HIGH);   //If value   is 1 then LED turns ON
19      else if(data == '0')         
20         digitalWrite(13,   LOW);    //If value is 0 then LED turns OFF
21   }
22}

/* simple program to control a LED on pin 13 of arduino using a bluetooth   module
*/
char data = 0;            //Variable for storing received data
void   setup()
{
    Serial.begin(9600);   //Sets the baud for serial data transmission                                
    pinMode(13, OUTPUT);  //Sets digital pin   13 as output pin
}
void loop()
{
   if(Serial.available() > 0)      //   Send data only when you receive data:
   {
      data = Serial.read();        //Read   the incoming data & store into data
      Serial.print(data);          //Print   Value inside data in Serial monitor
      Serial.print("\
");        
       if(data == '1')           
         digitalWrite(13, HIGH);   //If value   is 1 then LED turns ON
      else if(data == '0')         
         digitalWrite(13,   LOW);    //If value is 0 then LED turns OFF
   }
}

Main Code link

Full Code contains complete information ( updated link 21-07-2022 )

no description/ Read More

Latest commit to the master branch on Invalid date

Download as a zip

interface of Sensors DHT11

arduino

using this program we can display humidity and temperature in the Serial Monitor

1#include<Servo.h>
2#include <dht.h>
3dht DHT;
4#define DHT11_PIN
5  10
6String voice;
7void setup() 
8{
9Serial.begin(9600); 
10}
11void loop()
12  
13{
14int chk =DHT.read11(DHT11_PIN);
15Serial.print("Temperature = ");
16Serial.println(DHT.temperature);
17Serial.print("Humidity
18  =");
19Serial.println(DHT.humidity);
20delay(1000);
21}

#include<Servo.h>
#include <dht.h>
dht DHT;
#define DHT11_PIN
  10
String voice;
void setup() 
{
Serial.begin(9600); 
}
void loop()
  
{
int chk =DHT.read11(DHT11_PIN);
Serial.print("Temperature = ");
Serial.println(DHT.temperature);
Serial.print("Humidity
  =");
Serial.println(DHT.humidity);
delay(1000);
}

interface of Sensors DHT11

arduino

using this program we can display humidity and temperature in the Serial Monitor

1#include<Servo.h>
2#include <dht.h>
3dht DHT;
4#define DHT11_PIN  10
5String voice;
6void setup() 
7{
8Serial.begin(9600); 
9}
10void loop()  
11{
12int chk =DHT.read11(DHT11_PIN);
13Serial.print("Temperature = ");
14Serial.println(DHT.temperature);
15Serial.print("Humidity  =");
16Serial.println(DHT.humidity);
17delay(1000);
18}

#include<Servo.h>
#include <dht.h>
dht DHT;
#define DHT11_PIN  10
String voice;
void setup() 
{
Serial.begin(9600); 
}
void loop()  
{
int chk =DHT.read11(DHT11_PIN);
Serial.print("Temperature = ");
Serial.println(DHT.temperature);
Serial.print("Humidity  =");
Serial.println(DHT.humidity);
delay(1000);
}

Downloadable files

interface of Sensors

The DHT11 measures relative humidity. Relative humidity is the amount of water vapor in air vs. the saturation point of water vapor in air. At the saturation point, water vapor starts to condense and accumulate on surfaces forming dew.The DHT11 uses just one signal wire to transmit data to the Arduino interface diagram is shown in above fig. Using DHTLib library. It has all the functions needed to get the humidity and temperature readings from the sensor which is shown below program.

interface of Sensors

Android App

An App to Control the Drone Using Bluetooth ( updated 21-07-2022 )

Android App

interface of Bluetooth module

here we use a Bluetooth module (HC-05) for bidirectional communication purpose, for turn ON the drone and to receive the sensor data's. two resistors are used as a voltage divider to step down the 5 volts to 3.3 volts so that Bluetooth can receive the data from the Arduino Uno. The circuit is so simple and small , there is only few connection to be made Arduino Pins Bluetooth Pins RX (Pin 0) ———-> TX TX (Pin 1) ———-> RX 5V ———-> VCC GND ———-> GND

interface of Bluetooth module

Android App

An App to Control the Drone Using Bluetooth ( updated 21-07-2022 )

Android App

Interface of Arduino Uno with flight controller

The flight controller (Cc3d) will provides 5 input control pins which gives the 4 movement actions to the drone they are throttle, roll, yaw, and pitch. These pins need a PWM signal to work, so we will generate the PWM signal using Arduino Uno. By proper planning and sketch of a particular are we can program the Arduino by calling function with delay.

Interface of Arduino Uno with flight controller

interface of Bluetooth module

Interface of Arduino Uno with flight controller

interface of Sensors

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