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 footprint design of the ADMP401

I am creating a PCB in KiCad and I am trying to create a footprint for my mic, the ADMP401. When creating the footprint and running the design rules checker, it says I have a clearance issue with the ...
user23342283's user avatar
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1 answer
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how to choose a PCB component footprint?

I am trying to create a PCB in KiCad. I was able to find the footprints needed for my THT resistors and op-amp / comparator chip. However, I am not really sure what footprint to use for my capacitors. ...
user23342283's user avatar
3 votes
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How can I simulate a (simple) 555 circuit in KiCad?

I want to simulate a 555 circuit in KiCad, but quite failing to do so. I found a SPICE model here and included it in my model like this: My circuit looks like this: The transient simulation works. ...
Bart Friederichs's user avatar
1 vote
1 answer
43 views

How to create in Kicad pads with different diameter on top and bottom

This is for a two layer design using Kicad 7. I need to create a footprint with 4 circular PTH pads that have larger diameter on the bottom layer than on the top layer. This is to satisfy mechanical ...
zapta's user avatar
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How would I get something like this? How do I get small solder points at the tips?

I want to make a nice visual on a PCB but I am not entirely sure how to get the ends of routes to have little tips like this or how to make the board look like this in all honesty. Does anyone have ...
ConnerWithAnE's user avatar
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1 answer
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Copper zone not completed filled

I designed a board using KiCad 7. After connecting all the signal nets, I tried to place a copper zone. This copper zone is generated, but it is not completed filled: I tried to modify the properties ...
javat15's user avatar
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3 answers
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One footprint, two configurations - KiCad

I want to make a single PCB that works for two product versions. One of the footprints will have to sport different placements of the same component for the different versions. I want a footprint with ...
Alexander Ohm's user avatar
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3 answers
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Running traces across THT footprints

Will this work, knowing that I'm running traces across THT footprints? Kicad lets me do it, but will PCB manufacturers be able to print the board? On the other hand I had no other choice as I might ...
brunobhr's user avatar
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Custom made NetTie in KiCAD7 can't be routed

I have created a footprint for NetTie of custom size (I wanted 0.2mm pad/connection), as the library-provided one has the size of 0.5mm and is too big. I have tried two ways of routing: from other ...
smajli's user avatar
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1 answer
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How to fix ERC error for power pins

I'm working on a board in KiCad that is supplied with 12V regulated power which comes from a terminal block (1725753) and then it's routed to a ...
stdcerr's user avatar
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Unable to simulate a diode in KiCad/NSpice

I have this very simple circuit in KiCad: I'm trying to simulate the current through the LED, but whatever I do (change voltage of BT1, change resistance of R1, change model of D1), nothing ever ...
PMF's user avatar
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How to add colorful logo to PCB in Altium Designer?

I was going through Twitter, and I found this PCB I want to know how they add the colorful logo to it and it can be done in Altium Designer.
Monesh Rathod's user avatar
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STM32G031Y8Y6TR BGA issue

I want to use STM32G031Y8Y6TR WLCSP(1.86x2.14) package, but I have a problem with routing and I'm looking for your advice. First, I can not use track width less than 0.09mm, also I can not use via ...
Alatriste's user avatar
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Buck-boost converter no voltage on output

I made buck-boost converter for my project with voltage and current measurement using op amp. I want to use ST Nucleo-L476RG to control it. When I tried to test it out, I had very little voltage (...
rvvski's user avatar
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6 votes
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Automatic serial number on a PCB

Imagine you're printing 10 PCBs and you want each PCB to have its own serial number, but you want to add the serial numbers automatically from Kicad. Is this possible or not? Does it depend on the ...
Nedou's user avatar
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LTSpice (Berkeley Spice) Files. WHERE?

I am working on importing spice files into Fusion 360 Electrical. It accepts original spice files. Is this something common, where can I find it, etc. I am used to finding the footprint, symbol, 3d ...
Wes Ellgass's user avatar
1 vote
1 answer
86 views

Return current via

I have a 4 layer board. Layer 1 (Top): SIGNAL + GND plane Layer 2: whole GND plane (no tracks) Layer 3: whole power plane (no tracks) Layer 4: (Bottom): SIGNAL + GND plane After putting vias ...
Alatriste's user avatar
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Is it a good idea to place SMPS output capacitor close to inductor?

Is it okay to bend the output electrolytic filter capacitor right next to my SMPS inductor?
JoeyB's user avatar
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Checking PCB Layout, Routing Tips and Improvements?

I've made some significant revisions to my old PCB design and wanted some advice on routing! This time I've tried to properly space the large current/voltage traces, kept traces short where possible, ...
makotoyuki's user avatar
1 vote
2 answers
206 views

PCB layout, any improvements to make on the routing?

I have designed the PCB below and would like some advice on good practice for my PCB routing / board schematic. Are there any design considerations that I should be paying attention to for the design? ...
makotoyuki's user avatar
2 votes
1 answer
105 views

Kicad: Create Symbol and Footprint for SoM

I am designing a PCB containing the UCM-iMX8M-Plus system on module. This module connects to the PCB using two DF40HC(3.0)-100DS-0.4V(51) connectors. I would like to create a symbol and a footprint ...
mlx11's user avatar
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Is there a piezo element in the KiCad libraries?

I have been trying to find a piezo element in the library but it just does not show up (I am using a Mac.) What should I do? If possible, please share a schematic with the piezo element in it so that ...
Anuj Kishan's user avatar
2 votes
1 answer
81 views

Incorrect KiCAD simulation

I am learning to simulate a voltage divider using SPICE in KiCAD. Here is the circuit I created for the simulation The simulation plot indicates that the voltage on the net connected to R1 is lower ...
InputBlackBoxOutput's user avatar
4 votes
2 answers
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What is this symbol in KiCad schematics?

I'm making my first steps in electronics and am trying to redraw a schematic in KiCad to export it to Gerber files and make a PCB. I found this symbol on a source schematic, but I cannot find it in ...
Vavilen Tatarskiy's user avatar
1 vote
2 answers
228 views

PCB Design Question - Power Plane or Fat Traces for High Current

I have designed my first pcb (4 layer) and I have a question about power planes versus power traces. I am using KiCad 7. I have tested the circuitry on a proto-board. I have a high current section (12-...
user1045680's user avatar
2 votes
1 answer
92 views

Kicad Clearance Rules not Applied

I'm doing a BGA design where I want a very small clearance between copper. I've set up my clearances as shown below, but for some reason the routing seems to completely ignore this and does not allow ...
Robert Zukowski's user avatar
3 votes
1 answer
294 views

How to pick the right resistor and capacitors on KiCad?

I am making a PCB for the first time and I am having trouble picking the correct footprint for my resistors and capacitors. This is one of the resistors that I am using (311-100KHRCT-ND). That item is ...
JustinL's user avatar
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1 vote
1 answer
470 views

How to draw edge plating in KiCad?

I need edge plating for a KiCad PCB and I'm not sure how to draw it. I've checked this explanation and it looks like I need overlapping copper on the PCB edges. But KiCad is trimming the polygons on ...
Kampi's user avatar
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2 answers
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Need support for ERC in KiCad

I am a beginner in KiCad and looking for support for following errors in ERC KiCad - Below are the Eeschema snapshots for reference - How shall I resolve these errors?
AbhishekMitra_AIT's user avatar
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2 answers
110 views

Missing nets in PCB editor

I designed a schematic in KiCad 7.0.8, have verified that I have foot prints assigned to all components and when I hit F8, it switches over to the PCB editor, I get the "Changes To Be Applied&...
stdcerr's user avatar
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1 answer
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"Error: Items not allowed (keepout area..)" KiCAD

I have got this erorr. What should i do?
Византија Исток's user avatar
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1 answer
173 views

KiCAD DRC erorrs

I have problem with this erorrs, but i don't know how to fix it. [![enter image description here][3]][3] But I have this erorrs, what should i do know?
Византија Исток's user avatar
-1 votes
1 answer
130 views

My first schematic of a 2-channel relay board [closed]

Hey all this would be my first try at creating a schematic in KiCad. The schematic is a basic 2-channel relay. The inputs are automotive 12v and gnd. This gets converted to 5v by the K78L05-1000R3. ...
StealthRT's user avatar
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2 votes
1 answer
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How to handle PCB design rule check when using a potentiometer with only two pins as a rheostat?

As a part of a simple PCB, I want to use a potentiometer as a rheostat which will vary the feedback resistance of a Schmitt-trigger as follows: I use KiCad and if I leave pin 3 open as shown above, I ...
user16307's user avatar
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1 answer
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Unorthodox routing, vias and fills everywhere

The board I'm working on has a (for me) difficult chip. I find my solutions somewhat strange. I can't remember proper boards I have seen using this kind of routing so I ask. First question about these ...
Gambanishu Habbeba's user avatar
1 vote
2 answers
82 views

KiCad current measure header disrupts net name

I'm working on a board where I have a couple of optional headers to measure current. The idea is that the header will not be populated on every board, I can bypass it by closing a solder bridge, like ...
Gambanishu Habbeba's user avatar
1 vote
1 answer
705 views

What are these double arrows on a schematic?

If I have to reproduce this schematic in KiCad, what should I use? How do I represent Vin+ in KiCad? Is this a local or global label?
Classy Fied's user avatar
10 votes
5 answers
2k views

Thermal relief for a chip without metal plate on the bottom

I have a chip in which I have selected this footprint: Package_SO: SOIC-8_3.9X4.9mm_P1.27mm. This is what it looks like: Because this chip gets pretty hot, I ...
user1584421's user avatar
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2 votes
2 answers
157 views

Footprint for potentiometer with support pins

I am trying to add this: potentiometer to my design. As you can see, it also has two pins in order to support it structurally. This is the datasheet if anyone is interested: https://www.tme.eu/...
user1584421's user avatar
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FreeCad addon manager

I'm trying to install the KiCad addon in FreeCad to create a footpring from DFX.The Freecad wiki page says it's done through the AddonManager that's in the Tools menu since version 0.17. I'm on 0.20....
Gambanishu Habbeba's user avatar
0 votes
2 answers
271 views

SOT-23 footprint (difference between KiCAD footprint and NXP)

I'm using some transistors in SOT-23 packages, designing a board in KiCAD 7. NXP's recommended footprint has pads 0.6 x 0.7 mm. Datasheet Vishay's "recommended minimum" has pads 0.559 x 0....
jonathanjo's user avatar
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0 votes
1 answer
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Footprint for 12.3x12.3mm SMD inductor

I want to incorporate this inductor: https://www.lcsc.com/product-detail/Inductors-SMD_SHOU-HAN-CYH127-150UH_C2929506.html in my project. Datasheet it here: https://datasheet.lcsc.com/lcsc/...
user1584421's user avatar
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2 votes
1 answer
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Kicad 7 - Drill out of range

I had a footprint for a component in Kicad 5. Then i updated to Kicad 7 and I am getting this error: ...
user1584421's user avatar
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1 vote
2 answers
139 views

Incomprehensible ratsnest in Kicad

In PCBnew, there is a ratsnest that I cannot comprehend why its there. This is it: As you can see, there is supposedly connection between pins 3 and 4. However, if you look at the schematic, pad 4 is ...
user1584421's user avatar
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0 votes
1 answer
99 views

KiCad Schematic Check

I just want to make sure that the schematic I had made was done so correctly, specifically the button configuration. I want a 10 kohm pull-down for each button so I want to make sure that I had routed ...
Abhi's user avatar
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1 vote
2 answers
97 views

NPTH through SMD pad

I'm trying to incorporate this design for an 18650 battery clip into my PCB. I'm using KiCad. If you look at the datasheet, you'll notice that there's actually two tabs sticking down from both ends of ...
Vital Duval's user avatar
0 votes
0 answers
276 views

Kicad: Net is graphically connected to bus but not a member of that bus

Why is KiCad 7.0.7 complaining that these wires aren't part of the bus, when I've literally labelled the bus A[18..1] and ...
Sod Almighty's user avatar
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0 votes
2 answers
458 views

Kicad 7 - Resize a board

I created a board in Kicad, but doing more work on it, I managed to shrink its size. All this is unused space. Is there a way to shrink the board. It is easy to move the edge cuts, but the unused ...
user1584421's user avatar
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0 votes
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256 views

How does a copper pour work in Kicad?

In my project, I have a label in the schematic as Vcc. When I created my backside copper pour in PCBnew, I gave it the Vcc net. Thus, when joining a Vcc pad on the frontside layer, via a via to the ...
user1584421's user avatar
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0 votes
0 answers
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Trace Width, Length, and Clearance for SATA signals in KiCad PCB Design

I am looking to design a SATA adapter board which interfaces an FPGA LPC FMC connector with a SATA connector. This board will contain the 6 signals (RX+, RX-, TX+, TX-, and Clk+, Clk-) along with ...
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