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Automatic Obstacle Dictector

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This is to present you a simple and cost-efficient obstacle detecting Circuit. The system was implemented in C++ type Arduino coding Software. Inputting the data and processing it in Arduino; all were digitally maintained; the digital pins of Arduino were used. And the outputs were controlled by the Arduino which were pre-given. This simple, cost efficient and mostly accurate project can be used in farming as well as defense and security sector of any country. Components Required Arduino NANO or Uno (any version) HC-SR04 Ultrasonic Sensor Battery LED Chassis Jumper Wires Circuit Diagram Circuit Diagram UItrasonic Sensor Ultrasonic sensor working Ultrasonic sensors also known as Sonar sensors have been in use for decades. They were once used for mapping of ships in sea and detection of broken/faulty parts in mechanical systems. The ultrasonic sensor works by transmitting ultrasonic waves and these waves strike with obstacles placed in front of the transmitter. The waves are reflected an...
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Humidity Dictator Using DHT11 Sensor

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DHT11 is a Humidity and Temperature Sensor, which generates calibrated digital output. DHT11 can be interface with any microcontroller like Arduino, Raspberry Pi, etc. and get instantaneous results. DHT11 is a low cost humidity and temperature sensor which provides high reliability and long term stability. In this project, we will build a small circuit to interface Arduino with DHT11 Temperature and Humidity Sensor. One of the main applications of connecting DTH11 sensor with Arduino is weather monitoring. We have already seen about humidity, relative humidity, humidity sensors and their types in this article. DHT11 Sensor The Schematics Circuit Diagram Components Required Arduino UNO [Buy Here] DHT11 Temperature and Humidity Sensor Breadboard (or perfboard) Power supply 16 x 2 LCD Display [Buy Here] 10K Ohm Potentiometer 5K Ohm Resistor (1/4 W) Connecting wires Circuit Description We will see the circuit design of DHT11 interfacing with Arduino. The DHT11 Humidity and Temperatur...
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A C- Program That Can Calculate Student CCGP

Procedure: 1:Open A C Program App such as CppDroid,Devc++ etc. 2:Write the below  code //programme that will calculate CGP #include #include #include int main(){ float A,B,C,D,E,F; float U,V,W,X,Y,Z; float MTH207,CVE211,GSP201,GSP207,EE211,ME261; float MTH206,MTH208,CVE221,GSP202,GSP208,ECE272; float GP1; float GP2; float CGP;      printf("please enter your score for MTH207..");      scanf("%f",&MTH207);      if(MTH207>=70 && MTH207  A=5;    }  else if(MTH207>=60 && MTH207    A=4;     }    else if(MTH207>=50 && MTH207    A=3;    }    else if(MTH207>=40 && MTH207    A=2;     }    else if(MTH207>=30 && MTH207     A=1;     }    else if(MTH207>=20 && MTH207             A=0;   }     printf("please enter your score for CVE211..");      scanf("%f",&CVE211);   if(CVE211>=70 && CVE211   B=5;    }  else if(CVE211>=60 && CVE211  B=4;   }     else if(CVE211...
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A Program That Explains The Use of Switch Case in C-Programing Language

Procedure: Open your C program Software App such as CppDroid, DveC++ etc. Write in the Syntax Below //program that would Divide,Add and Subtract number using switch statement #include<stdio.h> #include<stdlib.h> int main(){      float ans; float value1,value2; int option;      printf("Enter the values: "); scanf("%f%f",&value1,&value2);  printf("Enter 1 for addition\n");     printf("Enter 2 for subtraction\n");     printf("Enter 3 for division\n");     printf("Enter 4 for mutiplication\n");     scanf("%d",&option);     switch(option){         case 1:         ans=value1+value2;         printf("%f+%f=%f",value1,value2,ans);       break;        case2:         ans=value1-value2;         printf("%f-%f=%f",value1,value2,ans);        ...
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Door Knock Alarm

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Circuit Diagram Knock sensor is an essential component and it is used in automobiles. This sensor is located in the minor engine block, head of the cylinder. This sensor is mainly designed to generate the voltage signal depending upon the vibrations which are occurred due to the explosion. When we observe or hear a knock or ping sound along with the noise of an engine in cars is pre-ignition. This ignition can be occurred due to the air mixture or pocket of fuel ignited in front of the flame from the flash plug. So there will be a small shock wave can be occurred around the ignition, which can increase the pressure within the cylinder. In some cases, this can damage the engine. What is a Knock Sensor ? The knock sensor is one kind of sensor used to detect the flash knock. This flash is the state within the engine of the automobile where the fuel starts burning because of the pre-ignition, detonation, otherwise pinging. The main function of this sensor is to monitor the ignition process...
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Simplest Clap Switch Circuit

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Circuit Diagram and Working Explanation: The  circuit diagram of the clapper circuit  is shown in below figure:     Clap Switch using Arduino ARDUINO 21 Clap Switch using Arduino In this project we are going to make  Clapper circuit using the concept of  ADC  (Analog to Digital Conversion) in ARDUINO UNO. We are going to use a MIC and Uno to sense the sound and trigger a response. This  Clap ON Clap OFF switch  basically turns ON or OFF the device, by using the clap sound, as switch. We have previously built  Clap switch  and Clap ON Clap OFF switch , using 555 Timer IC.   On clapping there will be a peak signal at the MIC which is much higher than normal, this signal is fed to the amplifier, though a High Pass Filter. This amplified voltage signal is fed to ADC, which converts this high voltage into a number. So there will be a peak in the ADC reading of the UNO. On this peak detection we will toggle an LED on the board, ...
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Fire Alarm Circuit

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The Engineering Projects Flame Sensor Arduino Interfacing Ad Hello everyone! I hope you all will be absolutely fine and having fun. Today, I am going to provide a detailed discussion on  Flame Sensor Arduino Interfacing.  Flame sensor is an electronic device which is capable of sensing/detection of fire or a high temperature zone. It gives an indication through an LED attached at its top, just after sensing the fire. These type of sensors are usually used for short ranges. They are able to detect the fire up to 3 feet. Flame sensors is the most common device available in the market these days due to its good results and cost efficiency. You should also have a look at  Flame Sensor Library for Proteus . Flame sensors are available in the market in two types one having three pins and the other having four pins respectively. Both of the sensors can be easily interfaced to any micro-controller. I am using four pin flame sensor in this tutorial. You will see the complete wirin...
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