Arduino Basics

  My attention is drawn towards the noise behind me.... I cannot believe it. There it is.   The Arduino is taking a SELFIE !!   How did this happen?   Well actually, it is not that difficult for an Arduino.   I found out that my Canon Powershot SX50 HS camera has a port on the side for a remote switch. In the "Optional Accessories" section of the camera brochure , it identifies the remote switch model as RS-60E3 . I then looked up the model number on this website to find out the size of the jack (3 core, 2.5mm), and the pinout (Ground, focus and shutter) required to emulate the remote switch. Once I had this information, I was able to solder some really long wires to the jack and connect up the circuit (as described below).   And before I knew it, the Arduino was taking Selfies !!!   Warning : Any circuit you build for your camera (including this one) i...