Optional but useful things to include in prototype PCBs for testing and debugging // KiCad
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- Опубликовано: 7 авг 2024
- #pcb #prototype #kicad
There are some useful optional things we can include in our PCBs to make debugging and testing easier. In this videos, I share about 6 optional things that I wish I had included so that I did not waste time searching or testing various configurations. I share how we can incorporate these items with KiCad in any PCBs.
‣ Some links below are affiliate. I receive a small commission at no extra cost to you.
⏰ TIMESTAMPS AND RESOURCES
0:00 Intro
1:01 Modularity with logical blocks
2:00 Options with DNP, solder jumpers, 0Ω resistors
5:24 Debugging with test points, multimeter, and pogo pins
6:45 Helpers with silkscreen notes, power, polarity, project, writable area
8:25 Mounting holes with standards and sizes
9:58 LEDs for power, indication, TX/RX, power consumption
11:24 My Twitter question & Thanks to open source projects
🛍️ PRODUCTS MENTIONED
Single row pin headers s.click.aliexpress.com/e/_AZtMoD
Pin header jumper blocks s.click.aliexpress.com/e/_A5tVit
Spring test probe pogo pins s.click.aliexpress.com/e/_ATbaTB
M2 M3 M4 M5 Hex Socket Screw set s.click.aliexpress.com/e/_ArQ3s5
🎩 DEMO FILES
Oak PCB hutscape.com/oak/hardware
📺 WATCH NEXT
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🔗 LINKS SHOWN
Thumbnail photo by Photo Brian Wangenheim on Unsplash unsplash.com/photos/k_YLyRBmgo4
Anna's story, GitHub on RUclips • Anna's Story
Young engineers by Alena Darmel on Pexels www.pexels.com/video/young-en...
Adafruit Si7021 Breakout Board www.adafruit.com/product/3251
Schematic cdn-learn.adafruit.com/assets...
Adafruit VEML7700 Lux Sensor www.adafruit.com/product/4162
Schematic cdn-learn.adafruit.com/assets...
How to Use Do-not-populate (DNP) Components in Your PCB Design maker.pro/pcb/tutorial/how-to...
Arduino Nano 33 BLE store.arduino.cc/usa/nano-33-ble
Teensy 4.0 board www.pjrc.com/store/teensy40.html
Solder Bridge Jumper Best Practices in PCB Design resources.altium.com/p/solder...
YwRobot Breadboard Power Supply static.rapidonline.com/pdf/73...
5 uses of 0Ω resistor you should know www.seeedstudio.com/blog/2020...
Raspberry PI Pico board datasheet datasheets.raspberrypi.org/pi...
What are these round pads on the bottom of a PCB? electronics.stackexchange.com...
iCEBreaker FPGA 1bitsquared.com/products/iceb...
From Idea To Production: Using KiCad For OSHW Design And Mfg by Piotr Esden-Tempski (KiCon 2019) • "From Idea To Producti...
esden/pretty-kicad-libs GitHub github.com/esden/pretty-kicad...
Writable area on a PCB electronics.stackexchange.com...
Particle.io Boron datasheet docs.particle.io/datasheets/b...
Adafruit Feather specification learn.adafruit.com/adafruit-f...
RobotDyn M0 mini robotdyn.com/samd21-m0-mini.html
Schematic robotdyn.com/pub/media/0G-000...
Twitter question / 1401471208403603463
🔌 HARDWARE LAB EQUIPMENT
EEVBlog Digital Multimeter 121GW www.eevblog.com/product/121gw/
Logic Pro 8 (Black) - Saleae 8-Channel Logic Analyzer amzn.to/3d2JgF5
ATTEN-862D Hot Air Gun workstation s.click.aliexpress.com/e/_Am4hDi
💻 SOFTWARE USED
dotfiles for terminal configuration github.com/sayanee/dotfiles
KiCad for designing the schematic and PCB kicad.org/
CoolTerm for accessing the serial monitor freeware.the-meiers.org/
PartsBox for stock, inventory and BOM management partsbox.com/
GoodNotes for highlighting notes and datasheets www.goodnotes.com/
🎶 MUSIC
Spring Field by Godmode from RUclips Audio library
📹 VIDEO PRODUCTION GEAR
iPhone 11 for recording video
Microphone Audio Technica ATR2100-USB amzn.to/31WPW1h
IKEA TERTIAL Work lamp stand hacked as a microphone stand www.ikea.com/sg/en/p/tertial-...
Tripod SLIK SDV-10
iPhone holder Xiletu XJ-8
🎬 VIDEO EDITING SOFTWARE TOOLS
DaVinci Resolve 17.1 for video editing
QuickTime for screencast
Canva www.canva.com/ 
Наука
I'm a fan of rectangular test points that fit a Keystone 5015 SMD test point. On initial prototypes, you can solder these on for easier test hook clipping, then leave them off in production. Still works for factory bed-of-nails testing too. KiCad has nice footprints for this.
Amazing! I love it when it can work for both small-scale prototypes as well as large-scale factory-level manufacturing. There are lesser changes in components as we progress from version to version. Thanks for sharing this :)
I had to search and see it visually. I found this datasheet and saw the image of the surface mount test point with test-clips: datasheet.ciiva.com/16884/70182998-16884102.pdf
I had a look at the KiCad footprint too! I also like that we can still use it without any test clips as well for prototypes: gitlab.com/kicad/libraries/kicad-footprints/-/blob/master/TestPoint.pretty/TestPoint_Keystone_5015_Micro-Minature.kicad_mod
If you go this way, shop around for what kind of SMD test points you can get. There are not a lot of manufacturers making these, and as a result they are extortionately priced. I paid something like US $0.25 *each* for these tiny bits of stamped and formed metal in quantity 100. If anyone wants to see the board design, I documented it here ruclips.net/video/HvkYDyGICJo/видео.html
@@sayanee I haven't used these much lately, but there was a time (especially when I was doing more experimental analog stuff, where more things could go wrong that would need probing) when I really loved using these.
They're especially useful in dense analog layouts, because a lot of them roughly fit in the space of chip passives. It ends up being just a question of slotting them into the right spot in a grid of passives-no weird shapes to worry about.
@@Laogeodritt Nice!! Thanks for sharing a practical use case.
@@sayanee what is your job and qualification? electrical or computer science?
Is this the only person discussing topics of such practical nature?
This might be the best channel on youtube for helping learn best practices to actually ship embedded products
Thank you so much! Now I know how to keep my mounting holes from disappearing.
Great tips! Im a big fan of including a zero ohm resistor between a voltage regulator output and the rest of the supply rail, that way you can depopulate it to make current measurements or disconnect the regulator and wire up an external supply
Awesome video!
Really helpful tips. I have learnt many new things. Thank you so much for uploading this useful video.
I find your tips tricks really awesome!
Sayanee Basu, thank you for sharing your PCB evaluation tips. I have learned so much about modular test & evaluation of a PCB from your video. Now I know how to plan footprints and artwork for test & evaluation. This will make PCB evaluation a breeze.I have subscribed to your youtube channel.
Love this! Hope you'll do more PCB videos, especially with tips 😊
Great video! I think a 2 pin header makes a good current measurement point. Put a jumper on it when you want normal operation.
Well done. Great info and tips
I learnt lot of things from your channel 😍
Watching this video did make me wonder if it was very hard to create an edge connector like a PCI slot. The reason for doing so could be for quick testing as well as connecting to other peripherals. This can be very useful if you create designs for mass production. It does imply creating an automated test bed, but then you can get not only full tests every time. You can also run endurance tests and get automated reports, all possible of being performed by a non-technical person, or simply just have a station that requires attention to switch the boards.
Obviously, we cannot fall into the trap of having a test bed for the test bed. That would create an infinite loop, and we would get nowhere. At some point, we have to go to the nitty-gritty with our instruments and make sense of what's happening.
This approach I find to be justifiable only for large productions, otherwise it won't be neither cost nor time effective. For small batches, the solution you use is perfectly fine, and it makes more sense.
What do you prefer- easy EDA or kicad?
Sorry, I have never used easy EDA.
I am a bit confused about using a 0ohm resistor as fuse, how long will it take for it to burn out?
2:00 I did not use it as a fuse.
@@sayanee didn't you see somewhere that it could be used as fuse?
09:21 Well, you're wrong. They are part of the schematic too. At least in KiCad 6!
I gotta dig into KiCad 6 now :)