How interesting it would be if you can use your hobby computer to make anything that you wish to!! Electronics and coding enthusiasts all over the world are  very well aware of this potential regarding Raspberry Pi, the good ol’ pocket sized wonder. We have seen some immensely  wonderful hacks and gadgets based on it. This blog is the same where Jeremy Blythe explores one of the n dimensions  which Raspberry Pi can do.

 Now, let us mind you that he hasn’t done anything extraordinary like creating a quad-copter or dynamic GPS system. This is Raspberry Pi based parking assisting system which has a distance sensor interfaced with it.Simple,eh, no? Definitely not!! This project has a pretty long python coding. The project uses a Microsoft Camera, Adafruit 2.2 inches LCD display and a Sharp distance sensor. Jinxing with the hardware can be possible of course; keeping in mind the coding doesn’t get disturbed. 

A Printed Circuit Board doesn’t just connect electrical components using etched copper pathways, but also provides mechanical strength to it. Printed Circuit Boards, or more appropriately, Printed Wiring Boards are found in almost all of the commercial products as a packaging medium as building blocks. PCBs are a composite of organic and/or inorganic dielectric materials with many layers with wiring interconnects and also house components like inductors and capacitors.

There isn’t any standard printing board as such and each board is unique, often a function of the product itself. Printed Circuit Board or PCB is generally used to mechanically support and electrically connect the components with help of conductive pathways or traces made on copper clad sheet. In another words PCB is used to create an electrical connection between different components like resistor, capacitor, integrated circuits, IC’s etc.

What is USB? 

UNIVERSAL SERIAL BUS 

What does it do?

It connects your laptop or PC to the peripheral devices attached to it.

How does it communicate?

You attach the device using a cable to PC and communication is initiated within a fraction of seconds.

 However, what looks easy on our end is a complicated process in the USB system. It may be single step in our stride to attach the device and start working but for the system it’s entirely a different picture. In that fraction of second after the device is attached, it initiates step by step process to make communication possible. It starts right from alerting the PC about the attachment, change in voltages at ports, then addressing the devices, gathering the information, loading the drivers and finally communication.  Let’s understand each of these steps in detail to get a crystal clear picture about the working of USB.