The current is flowing because there is a voltage on the wire, and there is a conductive path from that voltage to a lower voltage. I have not studied communication modes.Ĭurrent and voltage are inseperable. I may be missing a lot many basic points here. What is carrying my data? Only EM waves travel this fast. I read somewhere that wires transmit data almost at the speed of light. So if it were current carrying my data it would not travel this fast. But my data is received almost instantly. The speed of the electrons depends on the voltage applied (that's what I remember from school). How does this current carry the data? Current is basically flowing electrons. Now if it were a digital signal, the value would be transmitted as a combination of high and low voltage. This analog signal will then travel over the wire and reach its destination where it will again be converted to binary and the user will receive the number. Then it will be sent to the modem which will convert to an analog signal. It will be converted to binary and become 00001010. Suppose from my PC, if I want to transmit the number ten. What I want to know is what exactly is carrying the data. It is simple and easy to remember (once you know your color rings).I know this is a very basic question but the answers returned by google are way too complicated for me to understand. Personally I use this trick in many cases where I have to wire many connections.
Some are more expensive than others, mine look like these Many variation on the theme of screw shields exist. I attach wires to Arduino ones and they seldom come off once connected. Personally I like the use of screw shields. RxD as in your next project this pin can have an entirely different function. Many pins on Arduino have more than one function, which makes it difficult to identify a pin for eg. Also for power I like to use somewhat longer wires, which makes it easy to identify them too. Most of the time I have little trouble seeing the difference between red for power supply and red for pin 2 (same for black), because they come from an entirely different location on the Arduino. , don't confuse with power) 11 => brown 12 => red. So pin number 0 => black pin number 1 => brown 2 => red 3 => orange 4 => yellow 5 => green 6 => blue 7 => violet 8 => grey 9 => white 10 => black (again. In this manner it is relatively easy to see which wire is connected to which pin. The colors wire I have available are similar to those used for color rings on resistors and what I usually do with Arduino's is using a color wire that corresponds with the pin number of the Arduino.
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