Welcome to this new issue of The MagPi magazine.

• BUILD AN IOT DOOR LOCK: Dr Simon Monk’s Everyday Engineering series continues
• MAKE A STROBE LIGHT: Get the party started with a Pi-powered strobe light. Just grab a few bright LEDs and a transistor to begin making
• COMMAND LINE PI (PART 2): Richard Smedley continues to conquer the command line
• SONIC PI TIPS AND TRICKS: Creator, Sam Aaron, helps you get creative with your code
• HACK THE RASPBIAN DESKTOP: The Foundation’s Simon Long introduces a new series
• FACE DETECTION WITH OPENCV: Join Willem Coopman as he tries to distinguish between dogs and humans, using the Pi Camera module
• GAMES WITH PYTHON (PART 2): Making shapes move around the screen is important if you want to make games. Here’s how it’s done