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Schematic to Breadboard view

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There is no set BB view for a SCH, you just place the parts on the BB and link them with wires. BB have connections in certain directions, so if you don't know about them watch some tutorial vids.

Also that SCH has faults. ie wires running through R1, R2, etc and around Q2.


Schematic to Breadboard view

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As Old_Grey said your schematic has problems (likely caused by connections in breadboard). I'd start by removing all wires in breadboard and pcb views to see if the green rats nest wires on Q2 and the shorts on the resistors go away (they probably will if you remove all connections in the other two views). If they don't go away you need to start again with a new sketch and redo the schematic. Once you have the schematic correct (with no rats nest lines shorting components) then you need to drag the components in Breadboard view on to the breadboard and connect them according to the wires that will appear (like the ones that shouldn't be in schematic now) on breadboard. Note the orientation of the parts matters, if connecting a resistor for instance in breadboard causes a rats nest line in schematic then you need to rotate the resistor 180 degrees so the pins in breadboard match those in schematic and pcb (that is likely the current problem). If you have more problems post the fzz file via the 7th icon from the left on the reply menu (so we see the entire sketch) and ask about what you don't understand.

Peter

Need new part L298N

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I need help with the parts L298N module

Thank you in advance.

Need new part L298N

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What kind of help? If you are looking for the part itself there are several in the parts bin. Enter l298 in parts search (the magnifying glass in the parts bin list) and they come up.

Peter

Need new part L298N

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I didn't find this part l298 at all.

Need new part L298N

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What version of Fritzing are you using? I'm assuming 0.9.3.b which is the latest. If so there are several versions of the chip and boards that use it in core parts. While I don;t think it is a recent addition, you might try in Fritzing help->Check for updates to see if you need a parts update. This is supposed to happen on every start but I have had cases where it doesn't update til you manually check. What comes up in the parts search when you enter l298?

Peter

Need new part L298N

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when I search for the part no result message come to me.

Need new part L298N

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You need to press the enter key to make the search happen (a Fritzing quirk, the mouse won't trigger a search). On 0.9.3.b in Windows (and should be the same on other platforms) a search on l288 comes up with 2 motor shield boards, the chip in a SMD package 2 more motor shields, the bare chip in tho and the chip with a heatsink. The chips all look to be Sparkfun so if search doesn't work it should also be in the Sparkfun-PowerIC parts bin

Peter


Need new part L298N

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there is one file for the the l298 but the file on fzz format I can't add that file.

Need new part L298N

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A fzz file is a sketch. If you open it with file->open it will load the sketch. A part would be an fzpz file (which is what is in the parts bins). You shouldn't need an external part, you should be able to drag the part from the parts bin in to one of the views (such as breadboard) and the part will appear in the sketch.

Peter

Need new part L298N

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okay thank you very much for your help

A4988 Stepper Motor Driver Carrier

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A4988 Stepper Motor Driver Carrier.fzpz (132.8 KB)

The solder pads(not sure if that is the right term) on this board are very small compared to other components which will make soldering very difficult. How can I edit the pads to give me more room to work with?

Thanks in advance.

A4988 Stepper Motor Driver Carrier

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If you are familiar with a svg editor such as Inkscape you could edit the pcb svg to increase the pad size (which looks to be currently too small), or I could modify it to a better pad size for you.

edit: that said you would probably be happier with one of the proper a4988 parts (which have breadboard and schematic which yours doesn't) that are available in core parts. If you enter a4988 in the parts search (the magnifying glass) and press the enter key, two of them come up. Although yours appears to be .5 in spacing rather than .6 as the core parts look to be (and is more common), so if that's what your part really is I'd need to make you a different part from one of the core ones with your pcb svg in it (with the pads fixed).

Peter

A4988 Stepper Motor Driver Carrier

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Peter thanks for the reply. I'll try editing the part myself. I'd like to learn for future projects.

I'm a bit worried about the spacing you mentioned. I received my pcb yesterday but didn't have time to test fit components.

A4988 Stepper Motor Driver Carrier

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To be honest Peter I was thinking that the .5 and .6 referred to the pin spacing but now I'm not sure. Can you please explain further the spacing.

Thanks


A4988 Stepper Motor Driver Carrier

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Ok never mind. Lol. I figured it out. It's the pin spacing across the component.

A4988 Stepper Motor Driver Carrier

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The easy way to do this is to increase the radius of the pads with xml editor in Inkscape. If you do pretty much anything else the x/y coords of the pad will move and cause problems. What I did was copy / paste a pad from a header (as the headers have the .038 hole size you need for .1 pins) in to the pcb svg drawing, then copy the radius from the header pad in to all the current pads using xml editor. Then copy the entire style command from the header in to the pad. Note there is an Inkscape bug in 0.92.2 that it loses the change when you change an attribute which it converts to a style (for example if stroke-width is separate and you change it from 10 to 20, when you set it Inkscape will convert it from in line to a style command but retain the original value of 10). So what I do is select an attribute (with no changes), set it (which converts to style) then replace the entire style with what I want and set that. There are tutorials on parts creation and I highly encourage everyone to learn parts making, it just has a large learning curve :slight_smile: . A number of us are happy to help if you have problems as the more people making parts the better. Yes the spacing is the one between the rows as you have discovered. If you want breadboard and schematic for your part as well it would be fairly easy to adapt either one in core by replacing their copy of the pcb svg with yours. You would probably need to change the connector numbering to match that used but the ones in core though. Here are pointers to the parts making tutorials:

Peter

PJ301M-12.fzpz - Thonkiconn PJ301M-12

PJ301M-12.fzpz - Thonkiconn PJ301M-12

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Did you compare the datasheet footprint to footprints in the FZ bins. Maybe search jacks in FZ, because it might have a different name.

PJ301M-12.fzpz - Thonkiconn PJ301M-12

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The referenced part was part of the google code base. That repository (and this part) appear to have been corrupted. There was a request a few months ago for anyone that had a non corrupted copy but I'm not aware of any answer. That said, this isn't like any of the parts we currently have (but is a relatively minor change from one of the stereo jacks) so try this:

3.5mm switching Jack.fzpz (7.5 KB)

Note as always you need to print out the pcb footprint and check it against a real part before ordering boards. The holes are all 1.5mm (they actually want a slot, but I don't know how to do it in Frtizing and many board houses don't support it anyway).

Peter

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