What is a PCB? In common we can define PCB as the flat sheet of material that supports mechanically and electrically connects electronic components using conductive tracks, pads, and other features that are etched from a series of copper sheets that have been laminated onto a non-conductive substrate. This substrate varies from a cellulose-based material, fiberglass, or even flexible thermoplastics. Compone ...

I was supporting a group of student on their graduation project. One of the difficulties they faced was on controlling an A/C unit with Arduino microcontroller. The first experiment we tried to work it out was by record the A/C remote control beam signal for each needed button by using the IRrecvDump code with IRremote library for Arduino (https://github.com/shirriff/Arduino-IRremote). Then, use these signa ...