Output HTML page into the image
Task: display html page by link to some pngimage. Solution: One of ways is use google-crome browser: google-chrome –headless –screenshot…
Author: Alex
Selenium get WebElement HTML body
Task: get body of Web Element Solution (java): String body = elem.getAttribute(“innerHTML”); Done.
Raspberry Pi as a clock
Task: Display clock on the Raspberry Pi display Implementation with ‘epd’ library: 1. Create python application (main.py) to display date…
How to expand partition size on Raspberry Pi Ubuntu disk
Task: expand root partition. After writing image on sd card I see 3.8GB partition size. I have 14GB sd card.…
Game: maze
Maze game is a best game to practice your logic. Your goal to move a ball to the exit. Game…
QRcode get service
Task: Generate QR code by text value as an image Implementation: http://scalan.com/apps/phpqrcode/get.php?data=textValue Result: Done.
How to disable parent page scrolling
I have iframe html5 game with arrow keys control. Task is to disable parent page scrolling when arrow keys pressed.…
Simple maze game
Task: Learn game development process with my younger son and write simple maze game. Implementation: Link: to play game.
How to disable run multiple cron jobs on different EC2 instances
Task: Disable run multiple cron jobs on different EC2 instances with common EFS directory Implementation Run bash script as a…
Yii get user’s attributes
Task: get password from user Object: app\models\User#1( => null => null => null … => […
Amazon Linux + Apache + phpFPM
Task: Prepare environment with Apache and phpFPM Implementation: install apache: yum install httpd install php-fpm: yum install php-fpm add autostart:…
Arduboy sound example
Task: Play simple sound on the Arduboy device: Implementation: Done.
CLI RPN Calculator
Task: Implement a command-line reverse polish notation (RPN) calculator using a language that you know well. Language: Java Java command…
How to make dump of Elasticsearch index
Task: Create dump of index in JSON format Steps: install npminstall elasticdump tools:npm install elastic dump -g command to make…
Arduino fast sin function
Task: Create fast function to get math sinus. One of implementation – create array for each degree values: float sin…