Calculator Projects

VFD Display for the TI83+ Calculator

VFD Display for the TI83+ Calculator

This project builds upon the PIC/TI83+ interface developed by ThomasHenry (see Nuts & Volts August 2013 – A Mathematics Engine for Microcontrollers). Acknowledgment, appreciation, and kudos to him for writing the TI-library for Great Cow Basic that made this project possible. When I recently re-discovered that article, I imagined re-creating the only calculator that was …

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CALCULATION OF BODY LENGTH

CALCULATION OF BODY LENGTH WITH 8051 AND DS89C430

In this project, which is designed using DALLAS DS89C430 microcontroller (in simulation AT89C51RC2) circuit and a marching band, calculated on the length of the body, the LCD display was performed. Circuit consists of three… Electronics Projects, Calculation of Body Length with 8051 and DS89C430 “8051 example, avr project, keil example, microcontroller projects, “ In this project, which is designed …

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Distance Measurement using HC-SR04 and AVR Microcontroller

In this tutorial we are going to discuss and design a circuit for measuring distance. This circuit is developed by interfacing ultrasonic sensor“HC-SR04” with AVR microcontroller. This sensor uses a technique called “ECHO” which is something you get when sound reflects back after striking with a surface. We know that sound vibrations can not penetrate …

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RATIONALE AND SOURCES OF PROJECT IDEA

TI Calculator Wireless Chat Using Atmega644

INTRODUCTION: Our project is a wireless communication link which interfaces to the serial ports on the TI-83 and TI-84 calculators. SUMMARY: Our group created a wireless communication system for the widely popular TI 83/84 calculators. The system interfaces to each calculator through their 2.5mm serial ports. Using an instant messaging chat program written in TI …

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PowerBox: The Safe AC Power Meter Using Atmega32

Introduction We designed a device that measures and graphs various aspects of AC power and acts as a computer-controlled remote switch. With the recent push for green energy and environmental friendliness, more and more people are concerned about their personal daily power usage. We developed a microcontroller-based device to measure AC power. The user will …

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Networked Biometric Authentication Using Atmega32

Introduction: Due to the increasing need for securing data and places, the biometric authentication industry is seeing large market growth.  We decided to build a scalable, small, and efficient device that can be used to secure doorways throughout a complex.  We use a FingerPrint Cards capacitance based fingerprint scanner as our capturing device.  This data …

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