I googled it, but still don't understand its meaning.
https://learn.sparkfun.com/tutorials/how-to-read-a-schematic:
Whether it’s for providing power, or sending out information, connectors are a requirement on most circuits. These symbols vary depending on what the connector looks like, here’s a sampling
Precisely the left example, I saw this before but I can't figure out what it stands for. Does it mean that all wires (1,2,3,4,5 and 6) are just wired together? Nothing else? Or is it a "real" electronic component?
No. A "slot" is something else completely different (a different type of connector).
It's "job" is to connect. Why are you asking these questions ?
(why are you asking what the purpose of a connector is ?)
More importantly, why are you asking if 6 pins are connected together when nothing is shown connected to them ? If such a connector were used on a board, the schematic would show which pins (if any) are connected together but since the connector is shown without being part of any schematic it should be obvious the pins need to be connected to something on the board.
Something tells me you have no idea what such a connector actually looks like . Have you ever seen these connectors on boards ?
Is that true ?
It consists of one or more electrical contacts in a housing of some sort which mates with a matching connector to make electrical contact, and hence "connect" the board to something. The pins along the edges of an Arduino board, for example, are considered a connector. The USB port is a connector. The barrel jack for power is a connector. Etc.
It may be that OP was thinking correctly when he called it a pinout slot, sort of - though that's totally not the right terminology.
BTW, just because a schematic symbol shows inline elements, the PCB foot print may not be.
example, an eight pin straight connector symbol might be a RJ45 connector.
What about the connector don't you understand ? Every one of the connectors in that schematic has a label indicating what it is connected to. So are you asking because you don't know what THOSE connectors look like or because you don't understand why they are there ? Are you asking because you don't understand why anyone would NEED to connect to those signals ? It is still not clear WHY you are asking . All of the necessary information is there. There is nothing missing . So why is it necessary to ask this question ?
paigioph:
I understand everything except the connector part.
A connector (relating to circuit diagrams) is an interface component that allows you to plug its buddy (counterpart/ other-half) component into/onto it. It is a convenient way for connecting wires or pins together (and also allows for convenient disconnection).
As for the actual/real physical 'appearance' of a connector in a schematic diagram - there will be times when the circuit diagram (alone) might not tell you what sort of connector it is. But, other times, if the circuit schematic is a detailed-enough one, there will be references to the type of connector (eg. model of connector etc).
So, sometimes you can find out what sort of connector it is (ie. physical size, shape, dimensions etc) .... other times....don't know.
As far as a schematic is concerned the physical type and pin arrangement is irrelevant. It could be anything, all you know is that something can connect to it.
In the case of that schematic, the "connectors" are those groups of holes along the side. The pictures show it, and the seller ships it without any connector installed, just the holes for the connector (that way, it's up to the customer to decide what kind of 0.1" pitch connector they want to use, male or female, which side of the board they want to put it on, and even whether they want a connector at all, vs just soldering wires directly onto the holes)
LarryD:
Access denied on your links.
.
The site blocks direct links. If you click in address bar and hit enter they load.
LarryD: @DrAzzy
Thank you, I think you told me that once before, recall is not working
Copying the link and resubmitting works.
.
Did I? shrug quite possible - that's the first thing I try now if I click a link that gives an error, but the link doesn't look like it got mangled. I don't recall a problem about links to them before, but is quite possible I mentioned it and forgot.
While everything DrAzzy said is technically true, practically speaking , you can look at the schematic you posted and make some assumptions without any further information, like the the 3-pin connectors are going to be male headers , like the kind a servo cable connects to. The same goes for all the other connectors, the 2-pin and the 4-pin. The chance of those being female is very small. In addition, the website "http://cjmcu.taobao.com" suggests a chinese manufacturer.
There is nothing to suggest any of the connectors would be female. If you look at other pcbs of similar circuits, you usually only see female headers on boards that are shields.
raschemmel:
What about the connector don't you understand ? Every one of the connectors in that schematic has a label indicating what it is connected to. So are you asking because you don't know what THOSE connectors look like or because you don't understand why they are there ? Are you asking because you don't understand why anyone would NEED to connect to those signals ? It is still not clear WHY you are asking . All of the necessary information is there. There is nothing missing . So why is it necessary to ask this question ?
Sorry I didn't make myself clear. I am a noob and when I saw the picture of the circuit board my initial thought was: that looks light weight, I am wondering how the schematic diagram looks like. Then I had a closer look at it and I understood everything except for the connectors. I was confused because I didn't see any connectors on the circuit but I realised thanks to you guys that it is the "holes" and the usb connection (4 lines/pins). Sorry, in the end I feel a little dump but I got it! Thanks!
Last question: At the schematic diagram in the bottom left it shows the USB-A connections. For the two data lines two 22 ohm resisistors are used but what means the Z1 22 and Z2 22? At first I thought zener, but I don't think so.
That was a poor schematic with no part numbers. This is a better circuit https://www.arduino.cc/en/uploads/Main/arduino-micro-schematic.pdf
It shows the part number for this component so you can look it up. It looks like a transorb a device for protecting the input, its resistance drops as the voltage rises and absorbers spikes.
A connector is simply a place to plug something into something else. If there is nothing plugged into the connector, then the connector represents a set of unconnected nodes.
For example, if you have a USB connector, with nothing plugged into it, you would represent that as a 4-pin connector. Sometimes the diagram might indicate information about what could be connected to each pin.
but I got it! Thanks!