Very nice hobby, especially if it is applied electronics. I applay electronics to few of my projects, RaspberryPi, Arduino, Teensy.
All articles in the category.
Teensy microcontroller Compile button and RFID reader
DIY Switching power supply for your breadboard projects
Amateur Radio Certificate Canada
Arduino Traffic Lights - Fun project for beginners
Arduino NFC RC522 door system
Arduino and Ultrasonic distance sensor HC-SR04