Raspberry pi pcb layout [Best Answer]



Last updated : Aug 17, 2022
Written by : Marvin Sumi
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Raspberry pi pcb layout

How many layers does Raspberry Pi PCB have?

Also, looked at the other raspberry pi modeled and their schematics found out that they did 6 layers of PCB.

Is Raspberry Pi PCB open source?

The Raspberry Pi itself is not open source hardware, because it relies on a Broadcom ARM processor (the BCM2835) for its computing, graphics processing, and memory.

Which board is used in Raspberry Pi?

The Raspberry Pi board is a Broadcom(BCM2835) SOC(system on chip) board. It comes equipped with an ARM1176JZF-S core CPU, 256 MB of SDRAM and 700 MHz,. The raspberry pi USB 2.0 ports use only external data connectivity options. The board draws its power from a micro USB adapter, with min range of 2.

Is it possible to build your own Raspberry Pi?

With it becomes possible to design your own custom boards where the Raspberry Pi is just another component. That gives you an enormous amount of flexibility as it allows you to have access to a much greater amount of IO pins, while the same time you get to choose exactly what hardware you want on your board.

Can I build my own Raspberry Pi?

Hardware startups building atop the Raspberry Pi microprocessor — of which there are plenty already — can now order custom tweaks to the hardware to better tailor the Pi to fit the needs of their business.

How can you tell how many layers a PCB has?

Count the number of insulation layers by eyes, you're able to know the number of PCB layers. Determine the number of PCB layers by inspecting the via holes or blind vias. The principle is mainly based on the use of the via hole technology in the circuit connection of the multilayer circuit board.

What is layer stack up in PCB?

Stack-up refers to the arrangement of copper layers and insulating layers that make up a PCB prior to board layout design. While a layer stack-up allows you to get more circuitry on a single board through the various PCB board layers, the structure of PCB stackup design confers many other advantages: •

Is Raspberry Pi a microcontroller?

In short, Raspberry Pi is known for its line of microprocessors, and not for microcontrollers. But this time around, the company has developed their very own microcontroller for the makers, and has designed a development board to bring it to them - The raspberry Pi Pico!

How powerful is a Raspberry Pi?

Featuring a quad-core 64-bit processor, 4GB of RAM, wireless networking, dual-display output, and 4K video playback, as well as a 40-pin GPIO header, it's the most powerful and easy-to-use Raspberry Pi computer yet.

Why is it called a Raspberry Pi?

The name Raspberry Pi is derived from the fruit pie, raspberry pie. This is because many companies in the computer neighborhood where Raspberry Pi was based used fruit names such as Apple and apricot as names for their companies and products.

Is there a Raspberry Pi 5 coming?

The Foundation recently celebrated the tenth anniversary since the first Raspberry Pi was launched. Since then, speculations about the release of the fifth generation of Pi boards have increased. There is no official statement yet, but enthusiasts expect the Raspberry Pi 5 to be launched in late 2022 or early 2023.

Why Raspberry Pi is used instead of Arduino?

Raspberry Pi has its own operating system, while Arduino boards do not have one. The Arduino board works on simple instructions provided to them by IDE (Integrated Development Environment). Raspberry Pi supports the internet, Arduino boards do not support the internet.

What is the architecture of Raspberry Pi?

The Raspberry Pi has CPU, RAM and GPU in one component called System on Chip (SoC). It uses an ARM1176JZF-S 700 MHz CPU which is single core and also has a co-processor for floating point calculations. The working memory in Raspberry pi is 512 MB SDRAM.

Can you turn a Raspberry Pi into a gaming PC?

Graphics cards might be hard to get ahold of (at least without parting with a small fortune) but you can still build a gaming PC with the help of our favorite SBC, the Raspberry Pi. Jay from Print 'N Play has done just that with his latest creation: a mini RGB gaming desktop.

Can a Raspberry Pi be a server?

The Raspberry Pi can be used as a web server on your main local network or the internet at large. It is a great selection in cases where you want an intranet for the office or a web development server. You can create a local Pi webserver to deliver various contents while you are surfing over the internet.

Can I use Raspberry Pi 4 as a PC?

Raspberry Pi 4 is fast enough to help you complete your tasks, and if you are good at programming, Raspberry Pi 4 will provide you with decent programming tools. So, get your Raspberry Pi 4 as soon as possible and start using it as your desktop computer.

Can you run a Raspberry Pi on a laptop?

Raspberry Pi can be easily connected to the laptop using Wifi or ethernet. I prefer WiFi over ethernet as it makes the setup completely wireless. Certain applications enable users to set up connections among Raspberry Pi and laptops. The most trusted one among them is the VNC server.

What parts do I need to build a Raspberry Pi?

  1. A Raspberry Pi computer with an SD card or micro SD card.
  2. A monitor with a cable (and, if needed, an HDMI adaptor)
  3. A USB keyboard and mouse.
  4. A power supply.
  5. Headphones or speakers (optional)
  6. An ethernet cable (optional)

Is 7 layer PCB possible?

Also, most of these devices require high signal transmissions. A 7 layer PCB reduces crosstalk and EMI. Therefore, it is ideal for use in such devices. A 7 layer PCB is available in computer systems.

What is a 2 layer PCB?

The 2 layer PCB ( double-sided PCB )is a printed circuit board with copper coated on both sides, top and bottom. There is an insulating layer in the middle, which is a commonly used printed circuit board. Both sides can be layout and soldered, which greatly reduces the difficulty of layout, so it is widely used.


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Raspberry pi pcb layout


Comment by Jared Sancken

hi guys and welcome to context electronics my name is Chris Gayle and today is an introduction to KY CAD in an even simpler method than getting to blinky getting the blinky was a ten part process to get you acquainted with Kai CAD all the pieces of KY CAD including footprints and schematics and everything like that but it was even a little bit too busy for some people right it took a little bit of time and at the end you still had to you know do quite a bit of things this is meant to be an even simpler introduction now a lot of people that I talked to about contextual ektron --ax they're in the software world they're interested in doing more with hardware they've got some development boards and they're ready to build their own thing that's kind of who I'm interested obviously I'm interested in talking to everybody but it seems like that's kind of the biggest crowd so today we're going to start a new project called shine on you crazy Kai CAD it's going to be a very very simple introduction and it's going to be using a popular platform called Raspberry Pi if you've never seen a Raspberry Pi is a development board it's about 30 40 bucks it's basically a small Linux single board computer and from here a lot of people you know want to start building things onto the headers up here and so that's exactly what we're going to we're going to build something onto the leftmost ten pins of a Raspberry Pi but it's going to be a very simple thing there's going to be two LEDs one of which that goes on whenever you plug it in so it's powered and the other one that turns on when you turn it on from here right so you'll make a small board that you can practice SMT soldering on which is not as scary as you think it is you can also practice you know doing some GPIO output from there then you can use this as kind of a launching pad for building your next thing and so we've got some ideas of building small other boards from from a Raspberry Pi interface again but need to do this step first so let's get through a very very simple build and then from there you can build the sky's the limit so first off let's take a look at the header of what we're looking at here and why we chose the leftmost ten pins we wanted to have power and ground and obviously this has a bunch of it and so and you know keying it to one side of the connector versus the other makes it really nice and easy right so this is the side with power that's all of that we also wanted some GPIO so we're going to do the left leftmost 10 pins because now we also have 5 GPIO s two of which are I squared C which is interesting and two which are serial so you know if you want to reuse this in the future that's going to be another interesting thing from there so we're gonna do is pull these 10 pins into a schematic put the whole thing and then what we'll do is we'll have on on this on the header here rather what we're going to do is we're going to use female pin these are called male pins here these gold pins you could plug stuff onto we're going to have well we'll have a 10 pin part number that you'll be able to plug right onto there and that's another key thing so let's take a look over at Kai CAD and get started so there there we go sorry so we're in Kai CAD there's an install pretty easy install I'm on Windows but this was also available for Linux and Mac so we're going to do is start a brand new project I'm going to call it shine great and from here I'm going to open up the EE schema which is the schematic editor and the first thing I'm going to do is go in and well first thing I'm going to show you is if you hit the question mark key it's a hit question mark at any time it pulls up a hot key list and this is a very important and useful thing to learn over time as you get more and more into Kai CAD but the first thing we're going to do is start dropping some components including LEDs so I go to add component I click i type in LED and I'm going to drop this here I'm gonna drop two of them I'm going to hit R to rotate I'm going to hit C to copy and then I'm going to go back into that same menu which I can also do with a and then I'm going to go type in our for resistor I guess I could spell that right huh so there's a bunch of them here but what I usually just do is R because that's actually the symbol I'm going to drop two of these here again we're not going to talk much about the theory we're just gonna talk about you know putting these components in here I'm using my mouse wheel to scroll in and out and there is a bunch of stuff around that mouse over and hit C to copy you can also right-click select the component and then say copy component it is definitely an unconventional interface here so that's a common complaint that I hear I'm going to hit the green wire over here this is a wire when I connect these two things together okay and then at the top I'm going to connect them their interview at this using the same the same ground at the bottom but different connections at the top right so what I'm gonna do is connect these at the bottom together okay and now I'm going to split my screen so that I can you know view this stuff together okay so now we're going to pull in a 10 pin connector so I'm going to once again hit a that loads up this I'm going to type co NN to start searching and I'm going to go for a 2 by 5 that's what I'm really looking for here a 2 by 5 connector alright and so what we're going to do is match up the pin numbers with the pin numbers we have here so this is going to be 3.3 volts right and then so we're going to do is we're going to actually just label these things we're going to we're going to label them with text and we could also label them with we could also label them with with actual labels like they connect the nuts together but we're not actually going to do that here so I say 3 V 3 and then GPIO 2 2 P is actually spaced out well GPIO 3 and GPIO 4 and ground ok see how that looks not too bad and then over here I'm going to do another one so this is going to be 5 V 5 V GND for ground GPIO 14 and GPIO 15 great so we're just going to put these labels next to it then we're to actually connect things directly together and now this is different that I normally say but because it's input for simplicity's sake we're going to do this a little bit different and hit W to start at a wire again so W to start a wire clips control Z undoes click to start and then I'm going to connect into so the bottom is going to connect to the ground all right so we're connect to pin 9 the top we're going to connect the two different things right so the the left side is just going to be the power indicator so we're going to hook that into the power rail here so whenever basically whenever you plug this thing in the left LED will go on and then this one's going to go into GPIO too so that whenever you turn on GPI to whenever GPIO 2 goes high then this LED will go on okay so now we're going to mouse over hit V that's going to change the value we can basically assign a value here we're going to say it's a 200 ohm resistor same thing here 200 ohm resistor and then again tracking the values here that'


Thanks for your comment Jared Sancken, have a nice day.
- Marvin Sumi, Staff Member


Comment by Wodniki

in this video i'd like to go through a complete pcb design using the new raspberry pi rp 2040 microcontroller i've made a little pcb this is about 50 by 20 25 millimeters also cast lighted holes that you can mount on a carrier pcb for example and solder these pads down to the other pcb this pcb contains everything that the rp2040 needs to work so that includes qsbi flash memory is a buck converter to produce a 3.3 volt rail all the decoupling capacitors usb series termination resistors crystal oscillator and so on so all the minimum equipment required for this rp2040 to work and i've broken out all of the signal pins to these castellated pads i'd like to show you this design just the schematic how i did the routing and layout and i've done this in altium but of course this transfers to every other pcb design software keycad as well so i hope you enjoy the video and let's get started a big thank you also to altium for sponsoring this video i use outcome designer for my work and also in my spare time as well i find it quite easy to use a lot more powerful than keycard at least in its current state and it lets me really get quite intricate designs done example high speed or any anything more complicated and they are actually offering a free trial for you to get started so if you just follow the link i'll leave it in the description autumn.com slash altum trial dash flow again i'll leave the link in the description and it'd be cool if you just check that out now at the time of making this video the rp2040 was released not too long ago so it's a pretty new mcu and it looks pretty interesting and also how you can program it with micro python and so on in future videos i would of course like to go through also the programming of this device and see how we can actually use that in real world applications glc pcb actually stocks this part as well which is really nice it's an extended part and as you can see it's rather cheap it's a one about 1.20 and they still have a couple hundred in stock so i suggest you maybe try out your own boards after you've watched this video and try to come up with your own designs i've actually ordered this board with jlc you can see here i've put it in and it cost me i think i know just about a hundred dollars to get 10 of these boards made so that's that's really quite cheap and i'm looking forward to playing around with these when i get them in my hands but for now i just want to walk you through the design process now there are two main documents you'll need when you start designing with this rp2040 microcontroller and one of these is the datasheet itself and this is a pretty long document about 650 pages it contains everything about the registers about pin descriptions and so on which pins are multiplex like i squared c art and so on but a big help for actual hardware design is this hardware design guide a hardware design with the rp2040 so i encourage you to look through that it's a far shorter document with only 32 pages and a lot of my design is actually based on this document so you can see for example how to do the power supplies how to place the decoupling capacitors voltage regulators the storage crystal oscillator and so on but i'll walk you through this in my design one by one so let's get started so here we are in autumn designer and looking at the schematics the schematic consists of two pages which overlay borders one and two power and mcu so first thing before we get into rp2040 design is how i actually label my components when i have multi-page schematics as you can see one underscore power is what i've called the schematic page and that's why i start all my labeling with for example the capacitors at c100 then i go to c101 c102 c103 same for resistors and any other components so i start at 100 and label it on and then for example for the second page for my mcu page i will start at 200 with every component and that makes it really easy to see for example i'm debugging or when i'm rooting and doing my layout of the pcb where is the component in which schematic page just by starting a different number of course for a larger schematic you might start a thousand or two thousand so back to the power supply i chose to use a buck converter here just for efficiency and that i have a quite a large input voltage range for this i typically always go to jlc pcb.com and their parts library so if your glcb.com parts and then i search for example for dc dc converters i wanted a pretty small package so this sot 23 6 pin package is just right it's got quite a lot of output current which is overkill for this rp-2040 but maybe i want to power some other things with this board and it has an input voltage range up to about 28 volts so that's really good so the schematic is pretty much taken directly from the datasheet again the datasheet you can find uh also via the jlc pcb parts library it tells you how to calculate all the values for the inductors capacitors feedback resistors and so on and that's pretty much all i did so my output voltage is 3.3 volts and all these components inductors capacitors feedback network are chosen using the help of the data sheet it's as simple as that as you can see i also have all of these pad components here and these are actually later than going to be used for the castellated pads of this pcb so you'll see them a lot throughout this schematic i also have of course an indicator led which i always think is quite nice to indicate that at least some sort of power is being applied and this regulator maybe is working another thing i do is label each and every net in my schematic this is really really useful when you're rooting later on so for example my vcc is named even my enable pin here i put a little net label for my bootstrap capacitor switch output feedback every single net in my schematics are labeled and that really helps when you're rooting later instead of figuring out you know what is c104 pad one for example this really helps i encourage you to do that in all of your schematics and that's pretty much all there is to this buck converter design i haven't included any esd protection and so on because i assume that will be placed on the carrier pcb so moving on to the second page of this schematic this is the actual rp2040 microcontroller and it requires some external quad spi flash memory which we'll talk about again almost all of this information i'm getting from this hardware design guide with rp2040 from the raspberry pi website but i'll just go through it step by step with you in altium so as usual we have all our vdd and power supply pins at the top and our ground pins at the bottom and for every i o vdd or vdd pin we would like at least a 100 nanofarad capacitor as small package as possible so i typically with o42 because oto 1 is very hard or at least hard to hand assemble and i believe glc pcb doesn't offer it at the moment there are some special requirements for the rp2040 especially for this vreg in and v rig out pins and these vreg pins are actually an internal regulator the inputs and outputs and that steps down the input voltage for example 3.3 volts to 1.1 volts w


Thanks Wodniki your participation is very much appreciated
- Marvin Sumi


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