The project aims in designing an IOT based food delivery robot which is operated wirelessly through smart phone using IOT technology.

This is the internet of things (IOT) based project, where we are particularly uses the Esp32 camera, head light and two DC motor along with l293d motor driver.

The ESP32 cam will capture live data with regards to its surroundings and then send it to a particular IP address through internet. User can access this device using mobile phone and while seeing the video user will control the robotic vehicle along with headlight and door lock from webpage.

This robot consists of ultrasonic sensor which uses to detect the obstacles in its path and switches ON the blue lights for alerts. This robot consists of one more feature is used to detect the theft and alerts through buzzer.

After reaches the destination robot will ask the password. Use need to enter the correct password though keypad. If it is correct the door will open to collect the food after some time the door will close automatically. The status of the project will display on LCD.

The main controlling device of the project is PIC microcontroller which loaded program written in embedded C language.

The objectives of the project include:

• IOT based food delivery robot.
• Controlling robot, head light and door lock from web browser
• ESP32 camera-based surveillance system.
• Keypad based password entering system.
• Obstacle detection and switching ON the blue lights.
• Theft detection and Alerting through Buzzer.
• Visible alerts using LCD display.
• To achieve this task using PIC Microcontroller.

The major building blocks of this project are:

• Rechargeable battery.
• ESP32 Camera.
• DC Motor with L293D driver.
• Blue light.
• Head light.
• Ultrasonic sensor.
• DC motor with l298 driver.
• Buzzer.
• Keypad.
• PIC Microcontroller.
• LCD display.

Software’s used:

1. Arduino IDE for compiling and dumping code into ESP32 Camera.
2. PIC-C compiler for Embedded C programming.
3. PIC kit 2 programmer for dumping code into Micro controller.
4. Express SCH for Circuit design.

video:

This project presents a novel Static Synchronous Compensator (STATCOM) based on a diode-clamped modular multilevel converter (DC-MMC) for effective reactive power compensation and voltage regulation in power systems. The proposed STATCOM configuration utilizes a multilevel inverter structure with diode clamping to achieve high-quality output voltage with reduced harmonic distortion and improved efficiency. By employing modular multilevel architecture, the system offers scalability, lower switching losses, and enhanced reliability compared to conventional two-level converters. The STATCOM is connected to the grid through a coupling inductor, enabling dynamic control of reactive power to stabilize grid voltage under varying load conditions. A PIC microcontroller is used to generate appropriate gating signals and to monitor system parameters, which are displayed through an LCD. Experimental results demonstrate that the proposed diode-clamped modular multilevel STATCOM provides fast dynamic response, reduced total harmonic distortion (THD), and improved power factor, making it suitable for modern power quality improvement and grid-support applications.

Components Used:

• Inductor.
• Incerter.
• Grid.
• Load.
• Battery.
• PIC Microcontroller.
• LCD display.

Block diagram:

video:

While actually giving in to our body’s natural wants such as sleep, we are keeping the balance beam in an upright and neutral position, generally a good thing to do. But life comes and calls quite often, many times forcing us to put hunger, drowsiness, and other basic human needs on the backburner in order to seal the deal and get the job done.

So here’s the scenario, this circuit saves both time and electricity for students. It helps to prevent them for dozing off while studying, by sounding a beep for few minutes. If timer is not reset during this time, it means the student is in deep sleep or not in the room, and the circuit switches off the light and fan in the room, thus preventing the wastage of electricity.

The microcontroller is the heart of the unit & controls all the blocks. One Real Time Clock (RTC) is interfaced with microcontroller through I2C bus. The RTC also has RAM, which is used to store the user data. The controller reads the real time from RTC and that is displayed in LCD display connected with microcontroller through driver.  The system also has another feature, when the person receives the alarm for the specified time he need to reset it , if he fails to do the system alerts by switching OFF the electrical appliances like lights, fans etc using relay switches.

The firmware is developed in Embedded ‘C’ language and compiled using PIC ‘C’ compiler. The final output of compiler will be in the form of Hex file. That Hex file is programmed/copied in to PIC microcontroller Flash program memory.

The objectives of the project include:

1. Automatic controlling of electrical devices.
2. Dynamic alarm setting options.

The Major Building blocks of this project are:

1. Regulated Power Supply.
2. PIC Microcontroller.
3. Relay with driver.
4. Real Time Clock (RTC).
5. LCD with driver.
6. LED Indicators.
7. Buzzer with driver.
8. Crystal

Software’s used:

1. PIC-C compiler for Embedded C programming.
2. PIC kit 2 programmer for dumping code into Micro controller.
3. Express SCH for Circuit design.

Regulated Power Supply:

Block Diagram:

video:

This system consists of an intelligent sonar-based object tracking system that continuously monitors the target.  Upon detecting the target, it sends the target’s location to a Central Control System.  The Central Control System takes the action of triggering the firing mechanism in the direction of target (missile). The firing in the system is done through a Laser GUN.

The main controlling system of the whole system is a microcontroller. Sonar sensor, stepper motor and laser gun are interfaced to Microcontroller. The DC motor based movable platform with sonar sensor mounted on it continuously checks for target and feds this data to the Microcontroller. The Microcontroller activates the laser gun along with Buzzer when the target is fixed. Target distance will display on LCD. To perform this task, Microcontroller is loaded with an intelligent program written in embedded ‘C’ language.

The main objectives of this project are:

1. Continuous monitoring of the moving target.
2. Firing through laser gun.
3. Audible alerts using Buzzer.

The major Building Blocks of this system are:

1. PIC Microcontroller.
2. Regulated Power Supply.
3. Sonar sensor.
4. Stepper motor with driver.
5. Buzzer with driver
6. Laser/High power LED gun.
7. LCD display.
8. Crystal oscillator
9. LED indicators
10. Reset

Software’s used:

1. PIC-C compiler for Embedded C programming.
2. PIC kit 2 programmer for dumping code into Micro controller.
3. Express SCH for Circuit design.

Regulated Power Supply:

Block Diagram:

video:

RF Communication ranges in between 30 KHz to 300 GHz. RF communication works by creating electromagnetic waves at a source and being able to pick up those electromagnetic waves at a particular destination. These electromagnetic waves travel through the air at near the speed of light. The wavelength of an electromagnetic signal is inversely proportional to the frequency; the higher the frequency, the shorter the wavelength.

The main controlling device of the whole system is a Microcontroller. RF receiver, buzzer and LCD are interfaced to Microcontroller. RF transmitter is connected in such a way that it always transmits the data. The RF receiver gets the data and feeds it to the Microcontroller. The microcontroller processes the data and analyzes whether the chills is within the range or not. A buzzer alarm is horned, if child is not in the range allotted. Also, LCD is used to show visual alerts. The Microcontroller is loaded with an intelligent program written using embedded ‘C’ language.

The objectives of the project include:

1. Alerts child missing.
2. Monitors child or a blind person.
3. Wireless transmission using RF.
4. A buzzer to give alerts.
5. Visual alerts using LCD.

The major building blocks of this project are:

1. Regulated Power Supply
2. RF Transmitter
3. RF Receiver
4. Microcontroller
5. LED indicators
6. Buzzer with driver
7. LCD with driver
8. Crystal oscillator
9. Reset

Software’s used:

1. PIC-C compiler for Embedded C programming.
2. PIC kit 2 programmer for dumping code into Microcontroller.
3. Express SCH for circuit designing.

Block diagram:

video: