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

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This project presents a smart BMS integrated with a solar-based Maximum Power Point Tracking (MPPT) system for efficient charging and discharging. The MPPT technique ensures maximum power extraction from the solar panel by electronically optimizing its operating point. The system uses voltage, current, and temperature sensors to continuously monitor battery and solar parameters.

A microcontroller-based control unit manages relays for automatic charging control and displays real-time data on an LCD. Additionally, an ESP8266 Wi-Fi module enables cloud monitoring through ThingSpeak and mobile control via the Blynk app. The system also supports temperature-based fan control and voltage-based load management.

Overall, the proposed system ensures safe, efficient, and intelligent battery operation with real-time monitoring, making it suitable for renewable energy-based EV applications.

Main Objectives:

• To develop a safe and reliable Battery Management System (BMS) for lithium-ion batteries.
• To ensure battery operation within the Safe Operating Area (SOA) by monitoring voltage, current, and temperature.
• To implement Maximum Power Point Tracking (MPPT) for extracting maximum power from the solar panel.
• To design an efficient charging and discharging control system using a microcontroller.
• To enable wireless/solar-based charging for improved convenience and sustainability.
• To provide real-time monitoring of battery and system parameters using sensors.
• To integrate IoT-based remote monitoring and control using Wi-Fi (ThingSpeak & Blynk).
• To implement automatic protection mechanisms like overvoltage, overcurrent, and overheating protection.
• To display system status using an LCD and LED indicators.
• To develop a smart and energy-efficient solution for modern electric vehicle applications.

The major building blocks of this project are:

• Regulated power supply
• PIC Microcontroller
• Temperature sensor
• Current sensor
• Voltage sensors
• LCD display.
• Relays.
• DC fan.
• LEDs
• ESP8266 WI-FI module.
• Solar panel.
• Charging circuit.
• Rechargeable battery.
• LED Indicators
• Crystal oscillator
• 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.

Block diagram:

video:

The project consists of two self-resonating copper coils of same resonating frequency of about 100KHZ. One copper wire is connected to the power source (transmitter), while the other copper wire is connected to the device (Receiver).The electric power from the power source causes the copper coil connected to it to start oscillating at a particular (KHz) frequency. Subsequently, the space around the copper coil gets filled with nonmagnetic radiations. This generated magnetic field further transfers the power to the other copper coil connected to the receiver. Since this coil is also of the same frequency, it starts oscillating at the same frequency as the first coil. This is known as ‘coupled resonance’ and is the principle of Tesla.

This project presents a solar-based wireless charging system for electric vehicles (EVs) integrated with battery monitoring and control using a PIC microcontroller. The system utilizes a solar panel to generate energy, which is stored in a rechargeable battery through a charging circuit. The stored energy is then transmitted wirelessly using transmitting copper coils.

At the EV section user will control the vehicle through switches, power is received through a receiving coil and regulated using appropriate circuits, including a TP4056 charging module, to safely charge the EV battery. The PIC microcontroller continuously monitors battery parameters such as voltage and controls the charging process using relays. Additionally, IR sensors are used for detection and efficient power transfer control. The system displays real-time information on an LCD and provides indications through LEDs. This integrated system ensures efficient energy utilization, safe wireless charging, and reliable operation, making it suitable for modern, eco-friendly electric vehicle applications.

Features:

  Solar Energy Utilization – Uses renewable solar power for eco-friendly operation

  Wireless Power Transfer – Transfers energy without physical connections using copper coils

  Automatic Charging Control – Charging starts/stops automatically using relays

  Battery Protection – Prevents overcharging and unsafe conditions

  Real-Time Monitoring – Displays voltage and system status on LCD

  Microcontroller-Based Control – Uses PIC microcontroller for intelligent operation

  IR Sensor Detection – Detects vehicle presence for efficient power transfer

  LED Indications – Provides system status through LEDs

  Dual Section Operation – Works with both solar (power generation) and EV (receiving) sections

  Energy Efficient System – Reduces power loss and improves efficiency

The major building blocks of this project are:

• Two Transmitting Copper coils.
• One Receiving Coil.
• Solar panel.
• Charging circuit.
• Rechargeable battery.
• Rectifiers.
• Capacitors.
• Relays.
• IR sensors.
• Tp4056 IC.
• PIC Microcontroller.
• LCD display.
• Voltage sensor.

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.

video:

The proposed system utilizes a voltage sensor module to continuously measure the battery pack voltage, while adjustable potentiometers are used to set reference voltage and current limits. The Arduino UNO processes the sensor data and calculates the battery’s State of Charge based on predefined voltage thresholds. A regulated power supply ensures stable operation of the control circuitry. The system incorporates a relay module to control the connection between the battery pack and DC motors, enabling automatic cut-off during overcharging, deep discharge, or fault conditions.

To enhance user interaction and system awareness, an LCD display is integrated to show real-time voltage levels and estimated SoC percentage. Additionally, LED indicators and a buzzer provide visual and audible alerts when abnormal conditions occur.

This Arduino-based BMS offers a low-cost and scalable solution suitable for small-scale battery-powered applications such as robotics, electric vehicles (prototype level), and backup power systems. The implementation demonstrates how embedded systems can effectively manage battery performance, improve lifespan, and enhance operational safety through real-time monitoring and intelligent control.

Main Objectives:

  To monitor the battery voltage continuously using Arduino UNO.

  To estimate and display the State of Charge (SoC) of the battery.

  To protect the battery from overcharging and deep discharge.

  To automatically disconnect the load using a relay during unsafe conditions.

  To display battery voltage and SoC on an LCD screen.

  To provide warning alerts using LED indicators and a buzzer.

  To improve battery life and ensure safe battery operation.

Components used:

• Regulated power supply.
• 12V Battery pack.
• Relay.
• LCD display.
• Buzzer.
• TWO POTs.
• Voltage sensor.
• DC motor.

Software’s used in the project:

1. Embedded C language.
2. Arduino IDE for dumping the code into the Microcontroller.
3. Express SCH for Circuit design.

Block Diagram:

video:

Achieving balance between power consumption and power production is a bigger challenge today. The best way to solve this imbalanced equation is to use solar energy as efficiently as possible. The problem in the usage of solar energy is with solar cell panel should be exposed maximum to the sun light. If the solar panel is fixed in a particular direction, then the sun light intensity varies from morning to evening. Moving the solar cell panel in the direction of sun can increase the solar energy generated from the solar cell.

Maximum Power Point Tracking, frequently referred to as MPPT, is an electronic system that operates the Photovoltaic (PV) modules in a manner that allows the modules to produce all the power they are capable of. MPPT is not a mechanical tracking system that “physically moves” the modules to make them point more directly at the sun. MPPT is a fully electronic system that varies the electrical operating point of the modules so that the modules are able to deliver maximum available power.

The major building blocks of this project are:

• Photovoltaic System
• MPPT
• Fuzzy Logic Control
• CUK converter.

Block Diagram:

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In day-to-day life road accidents goes on increasing due to varies reasons. Some road accidents may cause due to chasing between two vehicles. We avoid these kinds of accidents by providing some precautionary methods using ultrasonic sensors.  Ultrasonic sensors generate high frequency sound waves and evaluate the echo which is received back by the sensor. These sensors calculate the time intervals between sending the signal and receiving the echo to determine the distance to an object. If the distance of the vehicle is too small then this vehicle is automatically control the speed of the vehicle which avoids the potential risk of the accident.

The main controlling device of the system is a Microcontroller. Ultrasonic sensor, buzzer and DC motors along with l293d motor driver are interfaced to Microcontroller. The microcontroller gives an alarm if distance is less than predefined limit from obstacle. If the sensor detect obstacle this data is fed as input to the micro control and microcontroller stop the vehicle ignition automatically. Here relay works as a switch to on/off the ignition. To perform the intelligent task, Microcontroller is programmed using embedded ‘C’ language.

Features:

1. Automatic braking system.
2. Object identification through ultrasonic sensor
3. Buzzer based alarming system

The project makes us learn about:

1. Ultrasonic sensor characteristics.
2. DC motor working principle and need for a motor driver.
3. Embedded C programming.
4. PCB designing.

The Major Building blocks of this project are:

• Battery Power Supply.
• PIC Microcontroller.
• Ultrasonic sensor.
• DC motor with relay driver.
• LED Indicators.
• Buzzer with driver.
• Crystal Oscillator.
• Reset Button.
• Led Indicator.

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:

With the passage of time, man started to cultivate land for agriculture.  He added a new dimension to the use of energy by domesticating and training animals to work for him. With further demand for energy, man began to use the wind for sailing ships and for driving windmills, and the force of falling water to turn water for sailing ships and for driving windmills, and the force of falling water to turn water wheels.  Till this time, it would not be wrong to say that the sun was supplying all the energy needs of man either directly or indirectly and that man was using only renewable sources of energy.

In this project we are generating electrical power as non-conventional method by simply walking or running on the foot step.  Non-conventional energy system is very essential at this time to our nation.  Non-conventional energy using foot step is converting force energy into the electrical energy.

The project aims at generating of voltage from footsteps. In this project the conversion of the force energy in to electrical energy. The control mechanism carries the piezoelectric sensor.The generated voltage is stored into the rechargeable battery through charging circuit.Battery power is used to charge the mobiles.

The major building blocks of this project are:

1. Piezo sensors.
2. Charging circuit.
3. Rechargeable battery.
4. LM2596 voltage regulator.
5. Mobile USB.
6. Multiple mobile cable.

Block Diagram:

video:

The main blocks of this project are:                    

1. Wind turbines.
2. Wind blades.
3. DC dynamo.
4. Charging circuit.
5. Rechargeable battery.
6. Pulse generator.
7. MOSFET.
8. Step up transformer.
9. ON/ OFF switch.
10. Bulb.

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In this project we are generating electrical power as non-conventional method by heat energy .Non-conventional energy systems very essential at this time to our nation.  Non-conventional energy using is converting mechanical energy into the electrical energy. Here in this project a mechanical arrangement is made.

In this project the conversion of the Radiator Heat energy in to electrical energy. By using this energy fan will operates and the energy is stored in a battery. The control mechanism carries the battery supply will pass to the inverter and it is used to drive AC. The battery is connected to the inverter. This inverter is used to convert the 12 Volt D.C to the 230 Volt A.C. This 230 Volt A.C voltage is used to activate the loads. We are using conventional battery charging unit also for giving supply to the circuitry.

In this project we are using TEP Transducer. Transducer is a device which converts one form of energy in to another form of energy. This includes electrical, mechanical, light and heat energy also .while the term transducer commonly implies the use of sensors/detector any device which converts energy considered as Transducer.

Features:

1. Generation of power using heat source
2. Can be useful for AC and DC loads.

The major building blocks of this project are:

1. Peltier plate.
2. Polarity converter.
3. Battery.
4. Charging circuit.
5. Radiator
6. Inverter
7. Step-up transformer.

Block Diagram:

video:

In this project we are generating electrical power as non-conventional method by heat thermal energy. Non-conventional energy systems very essential at this time to our nation. Non-conventional energy using is converting thermal energy into the electrical energy.

Here in this project a thermal peltier plate arrangement is made. In this project the conversion of the Heat energy in to electrical energy and the generated energy is stored into a battery. By using inverter will converts from DC to AC which uses to turn ON AC devices.

In this project we are using thermoelectric plate which produces the electricity from heat. As soon as heat reaches the Peltier modules, the temperature difference is imposed across them and the heat passing through the device is converted to electrical power. As heat travels through Peltier module, more power is altered from the heat with an increase in temperature difference and power output also increases. Thermoelectricity is the direct and thermodynamically reversible conversion of heat to electricity and vice versa. This peltier electricity is obtained stored into the battery through charging circuit. This battery power is used to switch ON the AC devices with the help of inverter.

Features:

1. Generation of power using trash.
2. Converting heat to electricity.
3. Converting temperature into electricity using thermoelectric plate.
4. Generated electricity is stored into the battery.
5. Conversion of DC to AC using inverter.

The major building blocks of this project are:

1. Heat source.
2. Peltier plate.
3. Charging circuit.
4. Rechargeable Battery.
5. Inverter
6. LEDs

Block Diagram:

video: