Electrical projects

In this post we have a machine that I called it equation solver. As the name refers it can solve four kinds of the most popular equations. Equation degree 2, degree 3, and the equations with 2 or 3 unknown. I t supports float numbers and have a perfect speed for solving your equation.  As always I used ATmega16 and 16*2 LCD with three additional buttons on the board. It also supports negative numbers. here in the link for program in Codevision: https://drive.google.com/open?id=0B5WLZo9Cie21Y1VPdVN1bWN5ZnM here is the link for schematic in Proteus: https://drive.google.com/open?id=0B5WLZo9Cie21WjJJUlRjTGx1ZkU

In this project we have quite a good calculator that supports all main operations like:  +   -   *   %  with integer and float numbers and even it can calculate Sin(x), Cos(x), Tan(x) and Cot(x) for all angles. This is a two line calculator that shows you what you are entering just like scientific calculators and of course it is as fast as them. You can also do multi operations at the same time. Accuracy is really acceptable due to using float numbers  and also it can do some conversions for some units like : inch-->mm mm-->inch ft-->m m-->ft F-->C C-->F Cal-->J J-->Cal. here is the program in Codevision: https://drive.google.com/open?id=0B5WLZo9Cie21WU5qaW5fcDdDRlk here is the schematic in Proteus: https://drive.google.com/open?id=0B5WLZo9Cie21Vk5SSmEzR0h5YmM                          

In this post there is a converter that can convert binary numbers to decimal numbers. I used 8 LED's that can show you what the number is in binary by being on or off. You give your number and then micro controller converts the number into it's decimal counterpart. LED on means 1 and LED off means 0. For example if we have number 0111010011 in binary we have 467 in decimal. here is the schematic in Proteus: https://drive.google.com/open?id=0B5WLZo9Cie21Ylh6aENWSHVuclE here is the codes in Codevision: https://drive.google.com/open?id=0B5WLZo9Cie21VFhFZDR6bVZkMEU

This post is about showing how you can read a keypad and see what you just typed on it. I used a keypad as an input device and used one LCD that shows us what we just typed. We don't want to do any mathematics operation with keypad. All we want is just showing what we are typing. here is the codes in Codevision: https://drive.google.com/open?id=0B5WLZo9Cie21RGVvbzhSdHVaS1U here is the schematic in Proteus: https://drive.google.com/open?id=0B5WLZo9Cie21Y1hiR0lfOEtBV2s

This post is about creating simple string in 2*16 LCD that is a really popular code in AVR applications and you can use it as a part of your project. I  tried to show you the practical circuit too.                    here is the program in Codevision: https://drive.google.com/open?id=0B5WLZo9Cie21aHJBWmFHdXJTQ2c here is the schematic in Proteus : https://drive.google.com/open?id=0B5WLZo9Cie21aEUtMXFvZjRlWjg

This project is about 1-digit common anode 7-segment that its value increases when you press the button connected to PIND6 that is used as an input. Numbers are from 0 to 9. We have to define an array to write on 7-segment. There is a simulation in Proteus. Download link

This project is about turning on and off one led by ATmega16 AVR microcontroller. One push button is used for turning LED on and one is used for turning it off. There is a simulation in Proteus.   Download link