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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PCB Layout DRC warning

I designed my own Layout in Kicad, but after running the DRC there are some warnings. Does anyone know what is wrong with the layout? (More info in the attached images). I thought the net describes ...
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2 votes
1 answer
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Translating a KiCad schematic subcircuit into a library useable with ngspice

After being unable to get TI's CD4049UB PSpice model working in ngspice, I started using this 2-MOSFET CMOS circuit illustrated here to get my simulations at least close: It has worked great for ...
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Feedback On Schematic

I'm a beginner when it comes to PCB design and I'm looking for design feedback for my schematic which I've created in KiCad. The idea is straightforward: I want to individually control 4 DC motors ...
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3D view not opening in KiCAD - OpenGL error

I am not able to open the 3D view in KiCAD. It is showing this error: "your OpenGL version is not supported. Minimum required is 1.5". I tried to search the error online and tried to ...
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Freerouting unable to route

I am trying to route the PCB I designed in KiCad with Freerouting's autoroute feature, but have noticed that it seems to be unable to route one of my LGA-12 ICs (U2 on the board shown below). What are ...
1 vote
1 answer
63 views

Sanity check ±12 V/+5 V PSU PCB

I'm building a small Eurorack switching PSU using DC-DC converter modules, and before pulling the trigger on the PCB I'd love to have someone sanity check the board. The schematic is pretty ...
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FE1.1s USB Hub "device not recognized"

I am trying to create a 4-port USB hub using a FE1.1s IC. When I plug the USB hub into my computer. I got the error "device not recognized" from my laptop. I have been trying to troubleshoot ...
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1 answer
131 views

Via stitching in PCB design

I am a newbie in PCB designing and started designing PCBs recently. I came across a concept called via stitching which is to achieve increased current carrying capacity of the board. I looked for the ...
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1 answer
80 views

Kicad: PCBnew swap/change layer

How to change/swap layers on PCBnew using Kicad 5? I want to swap the front drawing and front silk layers to F.SilkS, and in my case, I use an extra layer like Dwgs.User for dual silk printing: one ...
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1 answer
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KiCad: Show keep-out/clearance around mounting hole

I am trying to convert from DipTrace, where there is a built-in mounting hole feature in their PCB layout, which auto-populates a keep-out region around the hole. The keep-out region is where I don't ...
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Can I make GND vias like this under my QFN package?

Can I make GND vias like this under my QFN package?
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How to measure the power of two small solar panels independently and combine the power?

I am trying to make the connection below. I want to measure the voltages coming from the solar panels connected to pins 2 and 3 and then deliver their combined power at pin 1 in the teal square. I ...
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1 answer
67 views

It's possible to create power rails in KiCAD? [closed]

I'm starting with KiCAD and I have a little question about power rails. I know that there are a huge number of power rails by default, but I want know if I'd create my own custom power rails.
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3 votes
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151 views

KiCad Gerber vs Layout Error

When I look at a certain footprint on my PCB, either in the PCB document, the 3D viewer, or in the footprint editor, the pads all have clearance between each other. However, there is an overlap in the ...
2 votes
2 answers
673 views

KiCad error - parallel 7805 outputs

I have a KiCad error problem that I can't solve: error: the power output and power output type are connected erreur: les de type power output et power output sont connectées
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Formula for coupled stripline of 100 ohm

I am designing a PCB which involves MIPI and LVDS routing. What is the formula to calculate the impedance of asymmetric coupled stripline for MIPI and LVDS routing (100 ohm)? The required calculator ...
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2 answers
180 views

Correct way to label +5V and GND in KiCad

For KiCad to detect the +5V and GND parts of a schematic, I assume the power component symbols have to be attached. How does this work when the power comes in via a terminal? In the image below, I ...
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1 answer
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KiCad EeSchema search for net by name

Is there a way to search for a net by name in KiCad EeSchema?
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1 answer
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Add only a subset of components to PCB in KiCad

In the KiCad PCB Editor, when I click "Update PCB with changes made to schematic", all missing components are added to the PCB. How can I add only a specific selection of components? (For ...
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2 votes
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47 views

Properly Positioning SMD Headers KiCAD

I'm currently working on a PCB in KiCAD and am using some SMD header pins. In a previous design I used THT headers and it was super easy to measure from center to center of the holes to make sure the ...
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1 vote
1 answer
365 views

KiCad: Ground plane won't connect to pads

I am currently running into a problem in KiCad where the ground plane won't connect to some pads. KiCad even tells me to connect them but doesn't seem to make the connection automatically.
3 votes
2 answers
408 views

Drawing a very simple component in KiCad without the model

I am designing a PCB in KiCad that includes the 328ST160 and 328SR160 transducer pair. I have been unable to find a PCB symbol for the two. The physical component I have is just two pins, like so: I ...
0 votes
0 answers
75 views

How to model solar photovoltaic array in spice?

This is the circuit I need to simulate in KiCad and ngspice. simulate this circuit – Schematic created using CircuitLab Can I encapsulate the above circuit into a variable in ngspice so that ...
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67 views

Need a little help on 3018 GRBL mill with FlatCAM engraving settings for traces from KiCAD layouts

Today was my first full day actually feeding gcode files into my machine (which I had a lot more luck with once I found gSender, that one's a winner on a Windows platform), I had four layouts ready ...
2 votes
1 answer
338 views

Using Chinese 3018 CNC mill with KiCAD and FlatCAM for PCBs - "tool change"

OK here's the deal, KiCAD of course does a wonderful job with schematics, footprints, Gerber files, they even provide a pretty decent autorouter. Then you take the Gerbers and Excellons over into ...
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Having problems going from KiCAD -> Panelizer -> FlatCAM, outline not recognized

I'm a total newbie to FlatCAM but not to PCBs. I'm trying to use KiCAD and send the files through the common Panelizer (ThisIsNotRocketScience) software, I want to do two layer boards on my 3018 (...
1 vote
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111 views

PCB Design Review (KiCAD)

I'm still a beginner at PCB design so I wanted to get any feedback on my PCB. The project I'm working on is for a DIY Pocket Operator, there are some pushbuttons/LED's, a Teensy 3.2/Audio shield, a ...
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3 votes
1 answer
268 views

How to wire USB-C connector?

I am trying to add USB-C to an ESP32 module. I am using a [CP2102][1] This is the USB-C connector I was planning to use, simply because JLCPCB has tons of them and ...
1 vote
1 answer
257 views

Kicad 6 Global Label: Both are attached to the same items; one will be used in the netlist

My Schematic has a fuse and a varistor, and then the mains line continues to some relays: Is there a way to tell Kicad that certain components should be placed after the varistor? Currently the rules ...
4 votes
2 answers
487 views

Kicad 6: output vs power output

I am getting this error: Error: Input Power pin not driven by any Output Power pin This is the component failing This is my power supply. A RA0505 And this is ...
2 votes
4 answers
327 views

Is it possible to solder leads from a JST connector directly to footprint on PCB?

I want to build a PCB for a charging circuit almost identical to the one shown here. I plan to hook up the circuit to this battery. According to the battery's datasheet, there's a 'JST PH 2-pin' ...
0 votes
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90 views

KICad simulation issues

I've been having issues with the Spice simulator showing no values, and i got it to show a graph, but the graph makes no sense. It's a simple RC circuit, but the graph that i'm getting, looks like ...
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2 votes
1 answer
111 views

How to extend a connected graphic lines in KiCad 6?

How can I extend or decrease the length of a connected graphic line in the Schematic Editor of KiCad 6? Below is in blue ovals the pictogram and two examples marked. I can remember I could change the ...
1 vote
1 answer
132 views

Home automation schematic check

I've just designed my first schematic to use as a standalone water tank monitor powered off 12 V. Is there anything obviously wrong with it, or are there any suggestions? The water sensor is 2 wire 0-...
2 votes
2 answers
296 views

Trouble simulating an instrumentation amplifier on KiCad

So... I'm trying to build an EMG sensor for biofeedback purposes, but I'm having loads of trouble both on the breadboard and on the CAD side as well. I'm using a M1-processor mac mini which could be a ...
2 votes
1 answer
73 views

How to hide microvias when working on separate layers in KiCAD 5.1.10?

If you have a PCB with microvias on completely separate layers, i.e. 1-2 and 5-6, when working on layers other than 1 & 2, is there a way to hide these vias so they do not obscure the viewport for ...
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2 votes
2 answers
186 views

Why does KiCad / FreeRoute connect an IC's input pin with ground even if such a connection is missing in the schema?

After uploading my PCB design for manufacture, I got an error message about an input pin (#14) of one of the ICs (U4; a TDA7560 amp) being connected to GND and GNDA: ...
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2 votes
1 answer
161 views

How can get my LM2776 simulation in KiCAD working

I'm a beginner to both KiCAD and PCB design. I'm using KiCAD 6.0 on a mac. I'm trying to learn simulation and although the simulation basics seem straightforward enough, I have trouble importing ...
5 votes
1 answer
170 views

Is it safe to run tracks through PCB mousebites?

I have this set of PCBs. The top left board is always going to be broken away, but either the middle or the right one is there to stay. In order to save me a few millimeters and two whole 3-pin ...
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9 votes
7 answers
3k views

Kicad 6 can't find default library components - new install

New to Kicad, have just installed via the new 6.0 release. When I try and add a symbol, I get a "load error" pop-up with the following (heavily truncated): ...
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4 votes
2 answers
423 views

KiCad ground plane error or DRC glitch?

I have a PCB that when I run a design rule check in KiCad I am getting an error that an IC's earth pins are unconnected to a via which is also connected to earth. I don't get these errors a lot so I ...
2 votes
1 answer
94 views

KiCad 4 CvPcb: Why does adding a GitHub repo have no effect?

I'm trying to import the NetTie footprint library into CvPcb to implant a net tie into my PCB layout. I added the URL as a global library to the library table, but after clicking OK, I miss anything ...
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2 votes
2 answers
1k views

Installing KiCad 5 and 6 in parallel

KiCad 6 has been released, and it makes sense to start using it for new projects. However I don't want to migrate all my old projects just yet, so I would want to install versions 5.1 and 6 in ...
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1 vote
0 answers
69 views

Kicad assigning net names randomly

I'm running into an inconsistent behavior related to net naming in Kicad, where the same net connection (literally the same sheet duplicated multiple times in a hierarchical layout) ends up with ...
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2 votes
1 answer
107 views

KiCAD - "pin connected to other pins but not driven by any pin" GND

When I perform the "electrical rule check" in KiCAD I get errors at my GND-Symbols. pin connected to other pins but not driven by any pin After googling I ...
1 vote
3 answers
135 views

Which Kicad footprint represents a 2.2 µF MKP audio coupling capacitor?

I'd like to add six rectangular-shaped 2.2 µF MKP capacitors used as coupling caps for an audio circuit to my PCB in Kicad, but I'm not quite sure about the right footprint. What makes the choice even ...
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2 votes
1 answer
354 views

KiCad eeSchema editing - add a corner to a wire

Such a simple thing, but my search of the docs and through discussion groups is coming up with nothing. I've just started shifting from Eagle to KiCad, and it's all going smoothly it seems. But when ...
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2 votes
2 answers
3k views

Kicad ERC error #3: Power input pin not driven when attached to transistor

The ERC on my schematic keeps on failing due to a Type 3 error (VDD pin of an IC not driven) despite the fact that it does receive power via a voltage regulator and an NPN transistor. See the ...
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4 votes
2 answers
1k views

How can I add soldering holes, which are attached to IC pins, in Kicad?

I'm now almost done with a schematic in Kicad's Eeschema, but some links to the "outside world" are still missing, and I don't know yet how to add them to the schematic, so that they will ...
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-1 votes
2 answers
120 views

What is the best way to add a jumper J1 to a circuit, wrt electronic design & simulation (i.e. w KiCAD & ngSpice)

What is the best way to add a jumper J1 to a circuit, wrt electronic design & simulation (i.e. w KiCAD & ngSpice).?. I originally tried to add a jumper J1 (symbol type GS2) to my circuit in ...

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