https://www.tutorialspoint.com/arduino/arduino_operators.htm
Active Projects
Game Arcade System
https://www.instructables.com/id/All-in-One-Arcade-System
Vossie Various Stuff List 1 of Many…
Mini Weather Station With Attiny85
http://www.instructables.com/id/Mini-weather-station-with-Attiny85/
Ambient EMF Radiation Energy Collection
https://www.homemade-circuits.com/2013/06/how-to-collect-free-energy-from.html
Arduino UNO as AT328 Programmer
http://www.instructables.com/id/Arduino-UNO-as-AtMega328P-Programmer/
ESP8266 Power Socket Switch
https://hristoborisov.com/index.php/projects/switcher-a-wifi-open-source-power-switch/
Arduino Toy Hovercraft Bluetooth Control
http://www.instructables.com/id/EAL-Arduino-Hovercraft/
Skeleton Duino by Bot Shop
https://www.botshop.co.za/skeleton-duino-review/?mc_cid=0a84502f93&mc_eid=aac9e2cdd3
How To: Servo Driven 3D Printer Extruder
http://www.instructables.com/id/RCServo-Extruder-96-Grams-Direct-Drive