Description

Gesture vocalizer is basically a data glove and a microcontroller based system which can detect almost all the movements of a hand and convert some specified movements into human recognizable voice.

• The project includes a speech synthesizer that is made using the microcontroller ATmega32A that converts the gestures to audio and visual output.
• The prototype model was made using flex sensors and the project was extended to control the home applications via gestures by changing the mode.
• The system can be easily calibrated by the needs of the user via the calibration button.
• The design of the circuit was accomplished on the Eagle software and modeling of hardware components was done on the PCB board, system was programmed using Atmel studio, and program was converted to assembly language before implementing it on the chip.

Image Gallary

Demonstation

Publications

Description

The basic idea of the home automation system is to use the sensors to get the inputs and according to that inputs, give the corresponding outputs. Atmega328p is used as a microcontroller and the system includes various sensors such as PIR sensor, IR sensor, LM35 temperature sensor and LDR sensor. This development board is designed for five primary applications:

1. Switching on the light when motion is detected.
2. Varying speed of the Fan and A.C. in accordance with the temperature.
3. Switching on the electrical appliances remotely with the help of the smart phone.
4. Automatic turning the lights on as the intensity of sunlight decreases.
5. Turning off the electrical appliances when no one in a room.

• Development board was constructed which can be utilized in every house with effortless installation and is cost-effective.
• Different software like CAD Eagle and Proteus was used to develop the board.
• An android app that can control home appliances via Bluetooth was also designed.

Image Gallary

Publications

Description

This system automatically cuts copper wires based on the given input length and quantity. The automatic wire cutting machine is made using Atmega328p microcontroller and various hardware components. 16X2 keypad is used as an input device. LCD and Keypad design is simulated using Proteus simulation tool. Concepts of Stepper motor and Servo motor are studied to analyzed various designs to implement the mechanical model.

• This model takes number of wires and length in mm as inputs via tactile buttons and display it on lcd screen.
• After confirming it starts cutting wires.
• The stepper motor is driven by A4988 microstepping driver.
• This project can be extended to strip the wire as well by adding a simple mechanical assembly.

Image Gallary

Description

CNC plotter machine writes text or draws images by using a pen on the provided solid surface. For a CNC plotting machine to operate, 3 axes are required (x-axis, y-axis and z-axis. The x-axis and y-axis work in unison to create a 2D image on a plain paper. These x and y axis are placed 90 degrees to each other such that any point on the plain surface is defined by a given value of x and y. The z-axis is used lift and lower the pen onto the plain paper.

Depending on the image to be drawn, the computer will generate the appropriate coordinates and send them to the microcontroller through the USB port. The microcontroller interprets these coordinates and then controls the positions of the motors to create the image. Here we have used Arduino as the Microcontroller to build this CNC Machine.

• This system can be used for various purposes like PCB routing, logo design, cover page drawing of projects, etc.
• The project was mostly made from scrap materials like used DVD players and plywood.
• Software like Inkscape and Proteus are used to generate G-code files and PCB design respectively.

Image Gallary

Demonstation