Electronics Basics: Vcc, ground, ...
In all the projects and explanations I will use various terms to identify the same thing.
In particular I could mention -
, 0V
, negative pole of the battery, ground, GND
and Vss
.
Those all mean the negative pole of the battery that is at 0V.
On the other side of the spectrum I mention +
, Vcc
, Vdd
or positive pole.
This refers to the positive pole of the battery which exact value will be different depending on the battery or power source used: 9V
, 3.3V
, 5V
, and so on.
Why so many terms? Different families of electronic components adopted different acronyms:
- TTL (Transistor-Transistor Logic) components use
Vcc
andGND
. - CMOS (Complementary Metal-Oxide-Semiconductor) components use
Vdd
andVss
).
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