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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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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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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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.
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3 votes
2 answers
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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 ...
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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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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 ...
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2 votes
1 answer
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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 (...
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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
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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 ...
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1 answer
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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 ...
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4 votes
2 answers
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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 ...
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2 votes
4 answers
158 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' ...
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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
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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 ...
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1 vote
1 answer
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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-...
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2 answers
148 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 ...
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2 votes
1 answer
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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 answers
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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
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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 ...
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5 votes
1 answer
160 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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7 votes
5 answers
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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
326 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 ...
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2 votes
1 answer
80 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 answers
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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
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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
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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 ...
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1 vote
3 answers
113 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
218 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 answers
808 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
498 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
106 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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1 vote
0 answers
41 views

In KiCad (new user) I can no longer create a netlist file. It aborts with an error loading board file: Unknown token "export"

My “Multi-Edit” notes on the first line "export:" See text immediately below: ...
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3 votes
1 answer
158 views

KiCad: ratsnet not connecting pads

In my schematic I have a relay connected to a pin header (the two are in different .sch files), the connection is called ...
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2 votes
3 answers
145 views

Single supply op-amp saturates every time

Given a reference voltage level, I need to pick the difference with respect to that reference, amplify it and then convert it to digital. (Yes, I want to measure small voltage drops between two lines)....
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1 answer
108 views

What's the problem with my gain block?

I'm trying to amplify my output using a non-inverting amp as a gain block but it messes up the output. Here's my circuit: Vout before connecting to the gain block: Vout after connecting to the gain ...
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1 answer
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In the PCB design, how should the a2 terminal island of a triac in the 252 sheath be?

For the A2 terminal of the triac in pcb design, I want to use both the front and back surfaces of the pcb. How should the vias be between the back and front surface?(actually zone areas in surfaces)I ...
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2 votes
1 answer
118 views

KiCad leave room for optional through hole resistor on top of default SMD?

I was wondering how one would go about creating a footprint for an SMD resistor leaving room for a through hole one to be soldered on top should one wish to adjust the value, a bit as seen on this PCB ...
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4 votes
2 answers
194 views

KiCad SCH file issue

I am using KiCad 5.1.10 on Linux Mint. My question concerns the format of the SCH files. I do not understand why Eeschema is generating SCH files in the old format. Here are some details. I created a ...
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4 votes
1 answer
508 views

How do I tell KiCad where the power is coming from on a Eeschema

The problem I am a beginner/novice using KiCad and in creating PCB's, so I do not know much about these things. After following tutorials from YouTube I managed to create or copy symbols to my ...
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1 vote
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USB B to C Receptacle Wiring

Hi I am working on a project and my PCB needs to convert from USB 2.0 to a USB C receptacle. Is this wiring correct? I am using this 14 pin USB C receptacle https://datasheet.lcsc.com/lcsc/...
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2 votes
1 answer
351 views

How can I prevent the DRC in KiCAD from checking my silkscreen layers?

I am currently working on a PCB with a lot of components which are very close to one another. For this PCB I do not want to manufacture the silkscreen layers and I do not want the DRC to check for ...
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PADS 9.5 to KiCAD

I have a .pcb file which was made in PADS 9.5, and I wish to view it in PcbNew in KiCad. The current method that I have found on the internet is to first import the PADS project to an Altium project ...
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1 answer
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Kicad negative plot pdf file export scaling issue

I have been using Kicad for about a month for my project. While finishing up the 2 layer design, I wanted to print out a negative plot on a butter paper with the top and bottom layer printed side by ...
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1 vote
1 answer
124 views

Kicad: Are these traces all connected (if on same layer)?

I'm a kicad newbie and I'm attempting to do two things: keep my layers to a minimum (only 2) to keep cost down allowing kicad to draw the lines for me. I'm drawing all of my traces on but the auto-...
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1 vote
1 answer
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Using Kicad & proper part symbols: How do I add these types of parts for through-hole PCB?

Background I am attempting to create a hobbyist PCB (Printed Circuit Board). I'm using some components which I will provide so end-user can assemble them on a PCB (through-hole soldering them on). My ...
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2 votes
1 answer
86 views

Have I gotten this attiny13 based MOSFET circuit correctly?

I am bit new to electrical engineering and I was hoping to get a sanity check on my reasoning! I want to design a low-powered (battery-driven) plant watering PCB. It uses an attiny13 as the switch for ...
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2 votes
1 answer
112 views

Is safe to route a rmii (txd0 txd1) track under resistors?

I'm creating a PCB to connect an ESP32 to a PHY (lan8720) and I want do route a trace under some resistors. Is there any problem (crosstalk) doing this? The trace is txd0 (txd- on picture) under the ...
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0 votes
1 answer
199 views

Purpose of Bus to Bus Entry (Kicad [Eeschema])

On the far right of Eeschema, there is a button below Wire to Bus Entry: Bus to Bus Entry. What is the purpose of this, and how can it be used?
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Can I mass delete REFs from components in Kicad?

I have a PCB, and it can't nearly fit all of the REF markings on F.SilkS and B.SilkS. I want to just make my own for a few components, e.g. I would write "R1-R16", rather than "R1",...
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