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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Kicad Footprint Validation Conflict

I am trying to create a simple SMA connector footprint in Kicad but whenever I try to save the footprint to a library, Kicad generates a "validation conflict" error. I have no visibility ...
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KiCAD: Weird ratsnest

I am in the process of hooking up the ratsnest in pcbNew, in KiCAD. I finished with the process, except the last connection. Here it is: The upper copper layer is set to Vdd. As you can see, the ...
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KiCAD: addting a micro via to a footprint

I need to make a footprint in KiCAD that has a micro via. Is this possible? The footprint will sit on a 4-layer board and I need a micro via from F.Cu to In1.Cu.
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KiCAD: Connections are not the same in schematic and pcbNew

This is a portion of my schematic: Now, I try to create the traces in pcbNew. Here is the portion of pcbNew: In the schematic: C4 is connected to pin 1 of U1 and to pin 2 of U1 C1 is connected to ...
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Kicad bus pins in ngspice nelisting

In Kicad v5.1.9-1.fc32 release build, I have the following schematics. When netlisted for Ngspice, it provides the following netlist. ...
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59 views

Is there a way to import a PCB layout from one “sheet” into a multisheet in KiCad?

I am making a multisheet schematic and I'm appending schematics from other projects into the multisheet. They take their netlist along with them which is great but, is there a way to take their PCB ...
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53 views

KiCAD: Resetting pcbNew

I have created a pcb with KiCAD. Unfortunately, there were some errors with the pcb and i have to redraw. The problems all lie within the pcbNew program... My schematic, footprints and generally ...
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49 views

Op-amp - can't choose the right model for the PCB model

I'm thinking of using an op-amp in my circuit. Here is my circuit: Now I'm making the PCB model in KiCAD: I don't know how to find the right model of my op-amp -> U1, U2, and U3. Can someone ...
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33 views

How to mark pin as driven in KiCad?

In my schematic output of MOSFET is driving USB power, however KiCad thinks that this MOSFET pin is passive and complains that USB is not driven. On top level schematic USB_OUT is connected to VCC, ...
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47 views

KiCAD: Potential error in designing schematic symbol

I received a part of a schematic. It is this one: When i received my parts, i saw that the pinout was reversed. 1-8 was on the left side, while 9-16 was on the right side. At that time, i didn't know ...
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209 views

Are KiCad's horizontal 2.54" pin header and 90 degree pin headers equivalent?

I was experimenting with PCB layout in KiCad and noticed that the Connector_PinHeader_2.54mm > PinHeader_1x06_P2.54mm_Horizontal footprint and a physical 90 degree pin header I have do not seem to ...
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83 views

How to associate multiple symbols with one footprint in KiCad

I made a schematic for a 5 band analog EQ. I used OP Amps to make active bandpass filters for various frequencies within the human hearing range which means when I made my schematic I drew 5 OP Amps ...
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40 views

KiCAD: Footprint etc. for a breakout board on a PCB, which is to be designed

(I am no native English speaker....) I am a very beginner to KiCAD (not to electronics, though) and want to design my first PCB with KiCAD (Linux): A Nixie clock. To make my life a little more easier, ...
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138 views

Is the there a KiCAD plugin for making automatic board outlines?

Is there a plugin for kicad that can make simple shaped board outlines automatically? For example rectangles, rectangles with rounded edges etc. I think that could be super usefull. Beacuse at the ...
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34 views

KiCad — layout, how to remove extra vertexes from filled zones

In KiCad's layout tool, we can add a vertex to the outline of a "filled zone" with the "Insert" key. Sometimes I put in too many, change my mind etc, and they get annoying. How to ...
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74 views

PCB with KiCAD: Possible error in routing decoupling capacitors

I was inspecting my work with my first PCB in KiCAD. I was looking at the 3d model, and I was checking out the three decoupling capacitors I have placed. I noticed that they do not actually connect ...
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48 views

Flooding GND plane in the top side has any problems?

Hope Everyone is doing well. I got confused in the grounding of PCB. I checked many open hardware boards I noticed they don't flood GND plane in the top side to connect SMD components( all components ...
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KiCAD: “Footprint has no courtyard defined” using Arduino shield template

I made an Arduino shield with KiCAD. When I finished the board in PCBnew, I ran a design rules check. I got "Footprint has no courtyard defined" on all the mounting holes in the shield ...
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310 views

KiCAD: Cannot see traces on a PCB side which has been filled with copper

I made a bottom side copper fill. Then I drew traces on the back side, coming from the top side copper. (Top side copper trace -> via -> Draw Trace -> via -> Back to top side trace drawing....
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38 views

KiCAD: Adding a label to schematic produces error in Pcbnew

I had a schematic, then I went to do layout work in Pcbnew. I layed out the parts and then proceeded to draw the easy traces, the low hanging fruit. This is the PCB at this point: I had created a GND ...
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56 views

KiCAD: Ideal directory to store custom footprint

I downloaded a footprint for one IC from the internet. It contained a .kicad_mod and a STEP file. I have a directory where my project lives, so inside there are .pcb, .pro, .sch file and so on.... ...
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93 views

KiCAD: Footprint for pushbutton (arduino)

In the last days i was trying to figure out how footprints for KiCAD work. With help from people of this forum, i have achieved in completed all the footprints except one. I have a pushbutton for an ...
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50 views

KiCAD: Footprints for {Axial, Horizontal, Through Hole} Resistors

I have these two resistors in my schematic, that i want to find footprints for: Body dimensions = 2.5 x 6.8mm AND Leads dimensions = 0.6 x 28mm (like this one: https://www.acdcshop.gr/...
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180 views

KiCAD: Footprint selection for common through hole parts (resistors and capacitors)

I am in the stage that I have finished my schematic and I have to select footprints for my components before heading over to PCBnew. However, I could not find a guide on how to select footprints for ...
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53 views

Crosstalk in PCB layout

I am designing a 4 layers PCB with the following stack-up: Signal flooded with GND Solid GND plane POWER plane Signal flooded with GND For the top Layer I want to divide the GND plane (flooded) into ...
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148 views

Resistors - proper SMD package for newbie

I will be designing an Arduino shield in KiCAD. This will be my first project in KiCAD. Considering I am a newbie in PCB design and I will be performing the soldering, what is the correct package size ...
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158 views

KiCad 5: default footprints are missing

I have a fresh installation of KiCad 5 on Windows 10 (no other version of KiCad was installed ever before, actually the computer is brand new). I have used KiCad a lot, but only on linux and I have ...
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95 views

How to ground PCB to chassis using mounting hole with vias in Kicad?

Hi I have 4 layer board layered as follows. Signal Power Ground Signal For the power and ground planes I have done zone fills... I want to attach the PCB ground to my chassis using a screw. I ...
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65 views

KiCAD - plethora of errors when performing ERC

I finally finished my first schematic and everything looked great. I went ahead to perform Electrical Rules Check. There were many errors. Most of them were: Pin connected to other pins, but not ...
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90 views

KiCAD - Arduino shield - matching Arduino pins and schematic

I am trying to make an Arduino Mega shield using the KiCAD template. The only pins connected to the Arduino are pins 3,4,5,6,22. Here is a picture: I am drawing a schematic, and I am trying to ...
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81 views

KiCAD - Symbol for power connector

I am trying to create what is to be my first pcb, and also my first arduino shield. The circuit requires the power connector (power jack) that the arduino has. I am sure i can find that footprint ...
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81 views

KiCAD - Design rules for fabrication boardhouse [closed]

This is my first time designing a PCB with KiCAD. I plan to send them to JLCPCB for assembly. There are a ton of parameters to be set like track width, via width etc. If these are set wrong, then the ...
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93 views

What is the difference between TO-3 and TO-204AA packaging?

I am trying to build a circuit for a power amplifier and TO-204AA is the packaging used in the circuit diagram. KiCad does not have TO-204AA but it has TO-3. Looking at the image below you will see ...
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129 views

Editing/Creating a Triangular Solder Bridge Footprint

I wish to use a triangular solder jumper (solder-jumper) in my PCB and I am using KiCAD. The only available solder jumper - the one pointing in one direction (as in the attached image), is 2.45 x 1.50 ...
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83 views

Developing PCB for STM32F765 with 16 MHz crystal oscillator, ground plane isolation and 3.3 V plane

I have developed a PCB in Kicad for the STM32F765 microcontroller. I am using a 16 MHz crystal oscillator for the application. But I am having some confusion regarding the GND and 3.3 plane. As shown ...
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52 views

Layout tips for GND?

Is it OK to not connect the GND pins and at the end I fill the zone with copper pour? When I run the DRC in KiCad everything looks good (all pads are connected.)
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127 views

Multi-layer Via-in-pad with 0.5mm Pitch BGA in KiCad

I am working on a 4 layer board with an 81 pin 0.5mm pitch BGA which effectively requires via-in-pad for dropping down to other layers. Decoupling must be done on the bottom as there is no space for ...
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38 views

KiCAD 5 ‒ Is ist possible for a footprint to have multiple courtyards?

One of the components I am using is really a daughterboard that plugs into two rows of pin headers. Under the daughterboards, between the pin headers, there is space for a additional components. I ...
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47 views

RF Antenna 50 ohm controlled impedance design

this is my first time doing RF design and I'm currently using ThingMagic Nano M6E RFID module and in the process of designing a 50ohm impedance circuit/trace from the IC to the antenna. On their ...
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1answer
60 views

Component recommendation for my PCB (probe)

I have completed hardware and software (on the Arduino platform) for measuring resistance on custom sensors. Now it is time to move away from the breadboard and use my own PCB (I plan to make it on ...
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55 views

Inductor calculations for buck converter

I found this application report Basic Calculation of a Buck Converter's Power Stage Q : Can I use this report for products of other companies like ROHM, ALpha and Omega Semi... For the selection of ...
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247 views

Why can't I trigger my relay?

Solution This issue was caused by the choice of SOT-23 symbol when creating my PCB in KiCAD. As you can see in the picture below, there are a number of symbols associated with transistors in the KiCAD ...
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89 views

Different options when generating gerber/ drill files after PCB designing/ layout

I am generating gerber files for manufacturing of my PCB. I have completed my PCB layout. When generating gerber files/ drill files I am getting several options. What are they? I have highlighted the ...
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2k views

How should I deal with KiCAD Electrical Rule Check warnings?

I have drawn up a modest size schematic in KiCAD, for the first time. It seemed more or less straight forward. But now that I run the ERC error checker, I get boatloads of errors with seemingly ...
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87 views

How to get NAND gate with external spice-model working for simulation in kicad

I am trying to get some logic gates working in kicad-simulation following this Tutorial. I downloaded the 74HCng.lib as described in the above link, and set this library, and the appropriate model (...
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112 views

Why voltage is shifted in my schematic?

I'm learning basics of electronics and trying to get familiar with the common emitter topology. This is my schematic diagram: When I try to simulate it in Kicad I get this: Everything works as I ...
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47 views

Position components in KiCad for a test rig

I'm designing a test rig for a product. There's a number of test pads and a power connector on the PCB, which I want to match up with a tester device, i.e. the tester PCB should have pogo pins and the ...
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91 views

AC power (220V/50Hz)Track width calculation

I want to control 5KVA heater through atmega2560 . So, I isolated my heater through MOC3020 optpcoupler and triac(BTA24). I am confused to design a PCB of power circuitry part. How to calculate the ...
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2answers
130 views

KiCad placement using coordinate system

I am new to KiCad but have extensive experience with Allegro: The goal create a rectangular board outline that is 55 x 30 mm with the top left corner at x,y 0,0. This is possible in OrCad through the ...
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39 views

How to use transistor models provided as Spice netlists in KiCad?

I would like to use device models provided by EPC for their GaN MOSFETs in a KiCad simulation. The models (https://epc-co.com/epc/DesignSupport/DeviceModels.aspx) are provided as subcircuit Spice ...

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