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Topic: BEGINNERS: Before you buy or connect your board! (Read 2270 times) previous topic - next topic


Apr 23, 2019, 01:50 am Last Edit: Apr 23, 2019, 01:50 am by lastchancename
Unless you're an *experienced* electronics hobbyist, BEFORE you connect you Arduino / project to anything other than the USB cable... understand these things.

Read up and understand these concepts.
   -  Voltage (V) both DC / AC
   -  + / - voltages
   -  Current (I)
   -  Power (dissipation). (W)
   -  Vin / Vcc. 5V / 3.3V
   -  The importance of Ground / 0V
   -  Drivers - to separate your *load* from the Arduino pins.

Failing to do so will - almost certainly - eventually end in tears, and a new Arduino or interface board.
Experienced responders have a nose for laziness, (they were beginners once)... Sure, there are trolls, chest-beaters, and pretenders - but the help you'll get here is about as good as it gets - if you try to help youself!.


Jan 19, 2020, 06:13 pm Last Edit: Jan 20, 2020, 05:00 pm by Ranahaq73 Reason: trying to make a url
 Hi Guys:

Ronnie here again.

I have been looking at this thread and googling all of the different key points we were given. I have not found all of them yet, but through the searches I found 1 I really liked and asked about. I hope this helps other people.

Here is the link for the, Power (dissipation). (W).


thanks ronnie


Jan 19, 2020, 07:32 pm Last Edit: Jan 20, 2020, 05:01 pm by Ranahaq73
 Hi Guys:

Voltage (V) both DC / AC

Ronnie here again:

AC versus DC

Alternating current , Vs , Direct current.

I am learning with you as well, I am an electrician, maintenance guy that does ac part
and limited dc when it comes to the boards we use. so Please consult your best friend... I'm here to learn like anyone else.

here is a link I think yall would find helpful.



I would agree, but add:

* voltage drop and resistance for current control (because it seems almost everyone starts with something with an LED), and

* add "ground" two or three more times in the list  :smiley-evil:

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