Nilanjan Mandal
Created February 9, 2021 © GPL3+

Badol - The Gardian Drone

This is Guardian Drone For the Rescue Personnel

AdvancedFull instructions providedOver 2 days79

Things used in this project

Hardware components

KIT-HGDRONEK66
NXP KIT-HGDRONEK66
×1
NXP 8MMNavQ Starter Kit
×1
Arduino UNO
Arduino UNO
×1
Arduino and Breadboard Holder
×1

Software apps and online services

PX4
PX4
QGroundControl
PX4 QGroundControl
Arduino IDE
Arduino IDE
Shotcut

Hand tools and fabrication machines

Soldering iron (generic)
Soldering iron (generic)
Premium Female/Male Extension Jumper Wires, 40 x 6" (150mm)
Premium Female/Male Extension Jumper Wires, 40 x 6" (150mm)
Mastech MS8217 Autorange Digital Multimeter
Digilent Mastech MS8217 Autorange Digital Multimeter
Plier, Long Nose
Plier, Long Nose

Story

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Schematics

Noncontact Voltage Measurement circuit

Code

Noncontact Voltage Measurement code

Arduino
#include <Wire.h>
#include <Math.h>


#define sample 500                  //no. of samples the device takes per reading
float val;                          //place to store ta value from analogpin A5
int pin3 = 3;                       //output led


void setup() {
 
  Serial.begin(9600);
}

void loop(void)
{
  long average = 0;
  float c, s;
  while (1) {
    int16_t adc0;
    long sum, t;
    double  amplitude, cp, sp, phi;
    int i;
    sum = 0;
    i = 0;
    c = 0;
    s = 0;
    while (i < sample) {
      
     //Fourier analysis//
     
      adc0 = analogRead(A5) - 1023 * 3 / 5;
      t = micros(); //time in micro seconds
     
      //Replace 50.0 by 60.0 if your mains is 60 Hz
      phi = 6.2831853 * t / 1.0e6 * 50.0;
      c += (adc0 - average)  * cos(phi);
      s += (adc0 - average)  * sin(phi);
      sum += adc0;
      i++;
    }
    average = (sum / sample) ;
    i = 0; cp = c / sample; sp = s / sample;
    amplitude =  2 * sqrt(cp * cp + sp * sp);

    
    Serial.println(average);
    Serial.println(amplitude);         //For test and scaling
    
    //here the program takes the sum of all numbers in array1, and divides by the     number of elements "sample"
    val = amplitude;                   
    val = constrain(val, 0, 20);  //tweak it from from testing, 20 worked for me
    analogWrite(pin3, (val / 20.0 * 255.0));


  }
}

Credits

Nilanjan Mandal

Nilanjan Mandal

4 projects • 10 followers
Thanks to Emmanuel2015.

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