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Questions tagged [kicad]

Kicad EDA is an open source (GPL) software package for the creation of electronic schematic diagrams and printed circuit board artwork.

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24 views

KiCad 5.1: where are the design rules?

I'm following the tutorial series on YouTube at https://www.youtube.com/playlist?list=PLEBQazB0HUyR24ckSZ5u05TZHV9khgA1O, specifically the "An Intro to KiCad" videos. I'm using KiCad 5.1.2 on macOS, ...
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104 views

Why would I use triangular solder jumper pads?

My PCB layout program of choice - Kicad - has footprints for normal rounded solder jumpers; but also triangular ones. What benefits, if any, do the triangular ones offer? Or is it a purely aesthetic ...
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20 views

Getting error `object has no attribute LAYER_ID_COUNT' in KiCad PCBNEW trying to add track in Python script

I am trying to programatically add a new track to a KiCad board using the Python API. My code fails when trying to assign the layer to the new track. My code is modeled off this example... https://...
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38 views

KiCAD eeschem library part connecting pins together

I'm building a schematic library part for an Arduino prototype shield. Although it's a schematic part, I want it to look like the board as much as possible. This board has two long lines of through ...
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46 views

KiCad PCB Layout Editor - Selecting entire component/footprint instead of a particular element

In KiCad PCB Layout Editor, I'm trying to arrange and place the various footprints. But when I click on the component, instead of selecting the entire component/footprint, it selects the closest ...
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61 views

Flickering Neopixels (WS2812B)

I am working on a WordClock. First, I want to give you all the details needed and then I will ask my question. So, for this WordClock I used the Arduino with the FastLED library. I made a PCB (350 x ...
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62 views

1st KiCad design. Concerns with an abnormal circuit

I just wanted some input before sending this off for manufacture. It is for a test fixture and just has a funny circuit. Even though it seems relatively straight forward, it took a bit of finagling. ...
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35 views

In Kicad 5.1, how do you access the Net Class Editor

In Version 5.0, you accessed from the Setup Menu. However, I cannot seem to find a way to access this at all in version 5.1. The is no Setup menu. Perplexed. -Jim
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49 views

Arch Linux - KiCad Spice netlist generation fails when using a pulsed voltage source

I'm new to KiCad and I'm trying to simulate a simple circuit: This works fine. The simulation tool works, and if I generate the netlist for spice and can see no problem: Works like a charm. But now ...
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2answers
87 views

Moving to hierarchical design

I made a mistake and find my schematic will not fit on a single sheet. Can I change to a hierarchical model without redrawing the whole thing?
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2answers
151 views

KiCad: Some pads to solder wires on

I am working on a PCB for which I need external soldered wires. I made the whole PCB with al the traces on the front layer. Then, with 3 vias, I got to the back layer. Here I need to solder 3 wires to ...
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89 views

Connector footprint JAMMA

JAMMA connectors are card edge slots that were common in arcade games before cheap SBCs. They are designed for fairly high current (5A) and are robust and cheap in a range of sizes from 8 to 72 pin. ...
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53 views

Can not get the IC version of some gates to show up in KiCad

I don't know if this is a problem with the software i am running, or the way i am trying to go about doing this. But every time i try to place the 74LS04 IC in Eschema it only shows the option to ...
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1answer
30 views

eeschema: prevent Value, Reference from moving relative to symbol library?

When I create a symbol in the symbol editor and then drop it into a schematic, many of the fields (Value, custom fields) are automatically moved outside the bounding box of graphical objects. In the ...
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857 views

THT: What is a squared annular “ring”? [duplicate]

At least in KiCad, the footprints of through-hole pin headers have one squared annular “ring”, the other ones are round: What does the square indicate? (Also I’m wondering if there is perhaps a ...
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1answer
125 views

How to convert a RS-274D gerber to RS-274X

I got from a website some gerber files, I tried to have them printed, but they told me that the format is not supported and I need to convert to RS-274X. I've tried using gerbv to open the gerbers ...
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1answer
88 views

Kicad Version 5.1.0 Missing shortcuts

I have some questions regarding PCBnew of kicad 5.1.0. I cannot find how to global spread all the footprints after reading the netlist. There is no "mode button or footprint mode" any longer. How can ...
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2answers
55 views

Grid like footprint on kicad for RPM5-3 component

I'm developing a PCB in KiCAD which uses the RPM5-3 DC power module from Recom. (Link to datasheet) I created my schematic symbol and now I'm creating the footprint according to the datasheet ...
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1answer
42 views

KiCad export board area only

I've created a board with an outline that was created on the edge cuts layer. I've selected 'Board area only' and I've deselected 'Print board edges'. When I try to plot the SVG file for the F.Cu ...
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1answer
227 views

Why did KiCad merge my pins into one open blob in the solder mask gerber?

I designed a PCB with an IC that has a pitch of 0.5. The footprint solder mask looks like this: However, the gerber came out with one blob that looks like this: Why did it do that? Can I stop it? ...
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1answer
95 views

Would these traces cause a short?

I recently designed a circuit board, but now I'm looking and I believe that once the diode and capacitor are connected, they might be shorted. Thank you for your feedback.
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1answer
66 views

Kicad: Drag with left button mouse click by default when working with Eeschema

I want to change default behavior of left mouse click when working with Eeschema. Is it possible to change it from Move (M key) -> Drag (G key) when I select one/many elements? I'm using KiCAD 5.0 on ...
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1answer
125 views

Why are power components meant to be power inputs in KiCad?

This was asked before but not answered properly (at least I don't get it). Why are default power components in KiCad libraries are power inputs? What is the idea behind it? I would like connect an IC ...
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2answers
68 views

Howto debug ngspice error PPerror: syntax error during transient analysis

In an effort to better understand software and how my computer actually works I have been experimenting with simple electronic circuits. I am working up to having three two bit registers (A, B, C) ...
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2answers
93 views

Ho do I convert an “EagleCAD 5.12” project to “KiCad 5.0.2”?

I have an existing project in Eagle 5.12. I'd like to convert it to KiCad 5.0.2 (this is the latest I downloaded today). I have tried using the KiCad File/Import Project. It failed. I suspect it ...
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121 views

KiCad: PCB to footprint?

I'm designing a backplane that can be configured with different breakout boards (BoBs - example below of a simple pull-up type). The backplane provides two different voltage rails (J2 and J3) and ...
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1answer
206 views

Change selected lines between layers in kicad

I have a very complex board profile in DXF format that I was able to import into pcbnew version 5. Now I have every line loaded on a single layer ...
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1answer
80 views

Should I spread the pads out on the footprint of a THT LED?

I have a 4 pin RGB LED with a common anode. I'm trying to make my first PCB and I am creating the footprint for the LED now. I don't have a datasheet for the LEDs unfortunately. I have a ruler ...
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2answers
112 views

How does one duplicate tracks on both sides in KiCad?

I have a problem: I'm making an Arduino shield that has tracks which are supposed to handle up to 10A (maximum, instantaneous) current (usually it's around 2A, but we want to be on the safe side. ...
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3answers
220 views

Review of PCB design

In the last few months I have been working on this project and now the next stage is to make a PCB for this circuit. I know this PCB is very far from perfect (my first PCB), but I would like to know ...
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1answer
97 views

How to route Vdd and Vss to CD4011 in Pcbnew

As first-time KiCAD user, I was able to draw a simple schema with a CD4011 driving 2 relais. The "electrical rules checker" -finally- gives no errors or warnings. After creating the netlist and ...
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1answer
60 views

kicad: LM1117 can't choose Power output line

I have an LM1117 regulator and I have this problem: When I "Perform electrical rules check" I have this error: ...
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1answer
106 views

“Bend mode” equivalent in Kicad 5

In the switching from Eagle to Kicad the first thing I was missing are the bend modes. In Eagle you can very quicky change weather you want to prefer a right turn or left on the fly via the "bend mode"...
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127 views

KiCad pad clearance problem

I set up a clearance of 0.256 mm, however, this distance is only applied between the ground and traces. When it comes to ground and pads, this distance is small. I am wondering will be the copper ...
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1answer
133 views

Missing soldermask on some pads of mcu

After designing a board in Kicad with an SMT32L0 on it, I sent it to seeedStudio and when I received it, I noticed that some of the pads on the stm32 are missing soldermask: I checked the gerber file ...
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2answers
144 views

KiCad - Bus as input pin to a component

Can a schematic component be created whereby a pin represents a bus (aka multi-bit) signal? For example consider a case where you want to create a component for a 32-bit 16-to-1 multiplexer. Using a ...
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1answer
398 views

KiCAD's eeschema: How to move a reference / value in a schematic?

I would like to arrange a component's reference or value label in a eeschema schematic but I cannot seem to select or move it. If I try to edit the respective field's X and Y position via the "Symbol ...
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1answer
184 views

Help with Atmega32u4 custom PCB

I have attempted to design my own custom Atmega32u4 board, but when I assembled it it didn't show up in windows device manager. I fixed the problem where I forgot to connect VBUS to VCC with a jumper ...
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2answers
141 views

KiCAD symbol editor - how to use insert key to duplicate pins with every other number

I'm trying to make this header row in KiCAD. If I place pin 1, and press the insert key, it gets duplicated nicely. The problem is, that pin becomes pin 2, then the next pin 3. I want pin 1,3,5,7,9 ...
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2answers
192 views

reason to have entire Cu layer as GND connected through via (KiCad)

This is the first time I am designing a PCB and I was looking at example PCBs drawn in KiCad (the image below is my first PCB, to remove any sources of confusion). I noticed that oftentimes, when ...
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2answers
479 views

add filled zones doesn't work

(using KiCad 4.05 at the moment) I’ve been following video and blog instructions on how to create a PCB. Everything has been straightforward (have used EAGLE a bit many years ago) up until ‘add ...
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1answer
114 views

KiCad mouse cursor freezing in schematic

I've begun to make a transition from EAGLE to KiCad (wasn't particularly familiar with EAGLE either). I've installed KiCad 4.05 just because it seems there were more tutorials and info available out ...
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1answer
187 views

How to rotate several parts with respect to origin without changing its (x,y) coordinates in KiCAD?

Say I have a part located at coordinates (50,50) and I want to rotate it 10 degrees w.r.t. origin. To do so, I will select the part and press "Move Exactly" and key in these values: Now the problem ...
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1answer
2k views

KiCAD 5 — what is the significance of the various GND symbols?

I'm new to KiCAD. I see symbols for GND, GNDA (analog), GNDD (digital), GNDPWR, GNDREF, etc. Is there any significance aside from "schematic documentation"? I was expecting that maybe the reason ...
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1answer
509 views

KiCAD 5 custom footprints

I want to use the TPA3251. Package is TSSOP 44 pins, 0.635mm pitch. KiCAD's built-in library does not have it. (as the subject indicates, I'm using KiCAD 5). I created the library symbol without ...
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1answer
60 views

KiCad - Bus width indicator

How do you indicate the width of a bus in KiCad? Is there an equivalent to the "slash accompanied by a number" symbol typically used? For example, as used in this image:
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1answer
126 views

Show bus concatenation in schematic

How would you go about showing the concatenation of two buses in a schematic (preferably KiCad or Eagle). For example suppose a component has z as an input, where <...
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2answers
117 views

Kicad - Custom library folder

How do you create a folder to hold your custom components? The tutorials I've come across such as the official getting started guide show the creation of only one custom component. Using this approach ...
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1answer
460 views

KiCAD Component Pad Clearances

I'm using KiCAD version 5, and I have an issue with it. Previously, I've been using OrCAD up until the point to where I needed multiple layers for my board. So, I redesigned my components, but I'm ...
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2answers
193 views

KiCAD: Why is ERC throwing errors on apparently connected pins?

I've reconnected several of these (C1, U1 GND) more than once, even redrawing entire wire segments, but I still get errors about unconnected pins. Is there something I'm doing incorrectly?