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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ISL85403 buck-boost converter

I have a requirement for a 24V +- 15% rail to power a laser sensor off of a 24V lead acid battery pack. I implemented the reference design provided by renesas for a 12V buck-boost converter(...
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45 views

How to import the CAD file, generated by TI Webench, into KiCad software?

I noticed that the TI Webench online designer tool generates a CAD file of the designed circuit, and I am a KiCad user (recently started using it). So, I am not sure if there is anyway to import the ...
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116 views

Designing a PCB with variable-sized component alternatives

I'd like to get a little PCB manufactured with a basic circuit that I can populate with components of various sizes. E.g. have a place where any of a range of possible capacitor sizes could go. So I ...
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54 views

Version control system for KiCAD which can deal with merge requests

When working on a project with a group of people it is often required to merge changes someone else has made into a master version of the project. However my EDA of chocie, KiCAD, does not seem to ...
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Unintuitive terminal connection to ground

I'm reading the datasheet of an incremental encoder and seem to miss something. Am I reading it right that Terminal-C is connected to GND, and if so why? I thought I'm supposed to connect Terminal-C ...
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132 views

PCB routing mismatches the schematic

I have design a board on Kicad and now trying to route the tracks. However there is something I don't understand. Different pins on a microcontroller are connected to 3.3V power source through a ...
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55 views

BNC to 6.35mm Headphone jack wiring

Right now I am using KiCAD to try make a 6.35mm Headphone jack to BNC converter and am confused as to how to wire rn, tn and sn. What do they do? This is my current KiCAD schematic.
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69 views

KiCad Saying Pins Not-connected

So I am fairly new to using KiCad, and I have encountered a problem. I recently learned how to make hierarchical pins for bus assignments with the notation. ...
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46 views

KiCad: “No fooprint for automated placement”

I just finished my first PCB with KiCad. Now, I need to produce it and I need the Pick and Place file. When I try to generate footprint position files the software produce the message "No fooprint for ...
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61 views

KiCad problem, schematic to PCB layout generates empty PCBnew window

I am using KiCad 5.0.0, after I built my schematic I annotated schematic symbols, assigned PCB footprints to the schematic symbols, then generated the netlist, and finally when I clicked on the tab of ...
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47 views

Is there a way to prevent switching layers when laying tracks in KiCAD?

When I lay tracks in KiCAD on the back Cu layer (v5.1.0, Windows) I have the front Cu layer toggled invisible in the layer manager. I also have the selector arrow set to the back Cu layer. I have ...
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85 views

KiCAD parametric component placement

I need to place components in a circle of a certain diameter, with a certain pitch, and angled evenly. Is possible to do it in KiCAD automatically?
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55 views

How should I use 3.3V + 5V in KiCad without getting an ERC error?

Below are parts of my design. Using KiCad, I have problems using both VCC (5V) and 3.3V power, both from Arduino Mega pins. If on U6 (flash) I connect 3 and 7 I get a similar error, so I guess I did ...
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142 views

Does a silkscreen text or line over pads/mounting holes give problems?

I'm intending to create a PCB and let it manufactured (just a few, for a hobby project). I added some text on the silkscreen layer very close to mounting holes/holes for pins/vias. Also I used lines ...
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46 views

KiCad where is the priority setting of filled zones?

The documentation shows a dialog for filled zones in which you can set up the priority of the zone. I'm using KiCad 5.1.2 and I can't find this setting anywhere. Here's a screenshot of the filled ...
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31 views

Adding Raspberry Pi Hat edge-cuts and holes in Kicad (after schematic capture)

I'm looking for a way (in KiCad 5x) to build a Raspberry Pi HAT around a design that has already been completed. That is, I did not start with a Pi Hat TEMPLATE ... I hope to find a way to add it ...
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90 views

KiCad 5.1: New footprint from existing footprint

Is there a way to duplicate a footprint in one library into another for making changes? Or "create new footprint starting with existing footprint"? I want to make a footprint for Adafruit's Itsy ...
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51 views

Is the F.Cu upper layer really on top or just the 'upper layer' but protected?

I guess these are two very trivial questions, but I couldn't find any conclusive answer. Below is a part of a PCB I want to create (my first ever), a SOT23 transistor and a 0805 resistor. . My ...
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222 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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252 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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42 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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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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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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109 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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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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83 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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61 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
104 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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633 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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195 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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78 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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31 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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873 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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318 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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169 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
61 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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66 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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268 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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106 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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101 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
160 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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83 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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200 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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1answer
161 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
385 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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97 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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180 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
235 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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153 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
69 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: ...