When someone posts a Fritzing picture and calls it a schematic, I respond like someone just ran their fingernails across a blackboard.
Fritzing pictures are the Lego toys of circuit designs. Practically useless to any engineer, and when posted, many frequenters of these boards won't bother to convert them to a real schematic that they understand.
Here's an example of a really useless Fritzing picture:
There is a potential problem in this design, but it only becomes obvious in the real schematic. Unless you know the Arduino Uno well, it doesn't show in the Fritzing picture.
This is why schematic drawings are preferred. It doesn't have to be done with a program like Eagle; a hand-drawn schematic on an envelope is preferred over a Fritzing picture. Especially when the circuit design may be the problem we're looking for.
I hate the pictogragh's as well, but it is NOT fritzing's fault it does schematics just fine.
We just need people to post the schematic view instead of the picture.
To be generous, a really carefully made Fritz might be useful just to lay out a prototype. But seldom are they carefully made. You can see some reasonable ones in the "official" tutorials.
Hutkikz:
I hate the pictogragh's as well, but it is NOT fritzing's fault it does schematics just fine.
We just need people to post the schematic view instead of the picture.
This is the cleanest Fritzing schematic I've ever seen. They usually have ground symbols pointing in every direction, crossed lines at strange angles. Very little optimization.
When someone uses a separate supply for those relay modules and then they proceed to eliminate opto isolation by adding ground wires to the Arduino, I respond like someone just ran their fingernails across a blackboard.
I'm not going to be tested heheh. But, a few second look at the fritzing pic you posted, showed a bunch of blue lines going out out to lots of devices. And each device has only 1 blue line connected to it. And those devices not only have no labels for the pin .......... they also just one 1 line connected to them. Normally, those externally connected devices will have other connections - such as GND connection.
Anyway, I'm sure that a fritzing pic could contain adequate information in them - if enough effort is put in. And that effort should include making the pic 'accurate'.
But - whether it is a fritzing pic or a schematic ------ it's important to put in an adequate amount of detail, and needs to be accurate.
Although, it is excusable (sometimes) for beginners and novices to miss out some detail.
If the purpose is to show a new user how to connect up a simple circuit on a breadboard, and the images are clear, with clear markings, and the wires are carefully drawn without obscuring any important detail (pin numbers etc.), then I find Fritzing diagrams OK.
I always have to look carefully at the led they use, the one with a bent knee wire for a polarity marker, though, to work out which is supposed to be ground.
6v6gt:
I always have to look carefully at the led they use, the one with a bent knee wire for a polarity marker, though, to work out which is supposed to be ground.
Except perhaps for those LEDs for which the substrate is the anode.
6v6gt:
It appears that there is no standard for what the "bent knee" indicates.
Since it does not actually exist.
I was referring to the image showing the pin stock inside the encapsulation where the chip mounts. This is usually the cathode, but there are variations.
