EEVblog #1306 (1 of 5): 3 Cent Micro - Open Source Programmer

A five part video series on building the Free PDK open source programmer for the 3 Cent Padauk microcontrollers.
A new video released 9am Sydney time every day.
Part 1 is about how to take a github hardware project and order the parts and PCB from a Bill Of Materials. This could be applicable to any project you want to get manufactured.

#Padauk #github #PCB

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[adlerweb]

20:16 You don't have to specify board size - if you upload Gerbers things like size and layer count are automatically extracted

[eldonad]

This series is brilliant ! Getting to be behind your shoulder as you are going through the project is very pleasant, and as a beginner hobbyist I learn so much from you, thanks a lot ! Keep it going !

[pedrocimini]

Really love the github repo exploration! I think there is a lot to learn by understanding how our peers think behind their projects as well! :)

[almostanengineer]

Did I just watch 40 mins of Dave rambling for no real reason 😳

[evghenim]

JLCPCB will actually do V-scoring even for 5 proto boards ($2) for NO additional cost (as long as its the same design).

EDIT: But the resulting "panel" needs to be larger then 70x70mm (which is not an issue, as up to 100x100 mm is same price).

[gn_ghost]

Just a note: Capacitor in BOM should say its voltage rating, as well as the watt rating for the resistors.

[rocketmanprojects]

You can set the location of the JLC order number for free. I usually just stick it under an IC or something where it will be covered up.

[DiverJames]

Was expecting this to be “Dave builds 5 different microcontroller projects series, meh 😕”...got to the 3 minute mark and I’m like “Oh! HELL YEAH!!”. This is going to be good!

[Corianas_]

Great work, thanks for running us through this process, I wish I had this to watch 9 months ago when I last tried to order a pcb from a github repo :-/

[evilsdexter]

cool!!! a proper project from Dave, that's... wait for it... not abandoned (remember the Orange pi cluster one? ;) ). Awesome!

[kasamikona]

On JLCPCB, for the "Remove Order Number" option, "Specify a location" is free. Useful if you're designing a board, or have the ability to edit an existing board. All you do is add the text "JLCJLCJLCJLC" in a readable font size somewhere on one of the silkscreen layers, and they'll replace that with the order number. If you're assembling the board yourself, you can put it somewhere that'll be fully hidden once it's assembled, like underneath a large chip, or simply ensure it goes on the bottom side.

[SuperBlackReality]

22:19 one note, if you order small pcb and choose penalization by jlcpcb and you're board size is not a divisor of 100, or you order less then you could possibly fit in 100x100, then they will make panel 100x100 and add the order number on the excess board (100 is just as example of standard size)

[rulleeeee]

Regarding the panel and v-scoring, JLCPCB will do that for no additional charge even if it is just a small panel. I've done multiple 10x10cm boards split into a 3x3 grid. They will even do the panel for you and do the v-cut. I've tried doing it myself in the gerber and having them do it, both worked fine.

[garthenar]

I just finished finals week. I'm 100% ready to give this a go.

[hughhemington]

Now that you've done all the work, the price can go way up!

[steverpcb]

You should have used EasyEDA, select panel and specify the number horizontal and vertical, they will be V grooved at no extra charge provided that your panel is at least 70mm in the shortest dimension. Then click on Order at JLCPCB :) Minimum V groove spacing is 20mm, they snap your panel out of the big one and V groove it separately, add a boarder to the panel and the order number will be put on that :) The perfect size for that PCB would be 20mm wide X 90mm long, paneled by V groove 5 across with a 5mm boarder top and bottom for $2 !

[FXP]

I always let them know to put the order number under the big LQFP's so that you don't see them afterwards ;-)

[nabunbs]

Follow along with Dave is I really dig the concept!!! I'm hooked already!

[demoncloud]

This is going to be a good series I will binge watch ! Post all 5 videos man !

[nathansavery]

FYI you don't have to download it, that is the offine version to download, the browser version is the button at the top slight right of the webpage. Also includes an on and offline version of the auto-router.