Simple library for driving 20x4 LCD with 4bits

Out of boredom I figured out I'll write a library from scratch to interface the character LCD display which I got from ebay, quite cheap. Less than 7 pounds. However, I have written before a simple code to interface an LCD from scratch for 8051. So I have some experience and understanding how the character LCD works. The difference now will be, I' ll be using 4 bits, instead of 8 bits to communicate and read the busy flag. Essentially improving the previous code. I chose to write it for Arduino this time, because I have Sanguinololu bought for my 3D printer, and at some point I want to write a LCD user interface for it, from scratch. There won't be anything spectacular about this tutorial, there are already good articles about this stuff for all kinds of devices. Moreover, arduino has bunch of LCD libraries available for download for free. BUT... in this tutorial I'll describe problems I encountered and try to be as descriptive I can be so you can understand how the character LCD works, making you able to interface it with any micro-controller available, and even driving it by hand.

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Simple TLS/SSL SMTP client for Qt5

For one of my projects I wanted to develop a crash reporting dialog where user can enter the steps he did to crash the application and then by pressing send button the app automatically will send me user report and the log to my e-mail address. Unfortunatelly Qt doesn't have a Smtp library, and I don't want anything heavy just to send a simple string of characters through gmail smtp server.

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Fixing FlashQard image loading problems

One of my favourite applications when it comes to learning, that is revising is FlashQard.

FlashQard is an educational software to improve your learning process. It is designed to help you learn not only a new language but anything that can be learnt! 
This aim is achieved by using the widely used method, called Leitner System, and the idea of "different card types for different purposes". 
Leitner System (proposed by Sebastian Leitner in the 1970s) is one the most efficient methods for learning. Which allows you to focus on the most difficult flashcards and not waste your time on what you have already learnt.

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