Viewing profile — kaipereira

Hey guys, A couple weeks ago, I was in Shenzhen, China for a hackathon and on the first day, we all used the one-day PCB fabrication to make PCB badges to wear during the event. I …

I’m working on 2 hardware projects right now! Fold-up, scissor lift, cross-cantilever 3D printer for open sauce M.2 FPGA hardware accelerator devboard All just for fun and open sou…

I personally love this macropad tutorial and it's how I got into doing circuit board design in highschool: https://hackpad.hackclub.com/ . Before doing this, it's really helpful if…

This is insanely cool, the noise they make is also really satisfying! What was the cost/time breakdown of the entire project because the flipdisc prices are hidden behind quotes an…

Thanks so much!

This is so cool! I'd love to see a write-up on how made it, and what you referenced because designing neural networks always feel like a maze ;)

We ordered the PCB's and badges separately, but it's extremely easy to assemble, you just attach the eink on using the FPC connector and the badges are already in a complete setup …

Yeah the RP2040 is a bit overkill, but it's really cheap to get from JLC, easy to prototype FAST and easy if anyone wants to reference the design and create/program their own badge…

I used https://eds.st.com/antenna/#/ to get an antenna that fit with a target inductance of 4.7uH and then used https://github.com/nideri/nfc_antenna_generator to create the footpr…

So the eink holds its state once it’s programmed so you do need an initial program of the badge through USB-C, and then the NFC uses passive RF harvesting.

The total ended up being about $10/badge for 60 (5 for badge, 5 for eink), and we made the mistake of not ordering enough, so we ordered a couple more that were about $1 more expen…

I love getting cool swag from hackathons and I also love designing PCB's, so when my friend asked me if I would design hackathon badges for a large game jam in singapore, I was abs…

Oh wow, I've never actually heard about the Lemontron, I'll definitely take a look at it for inspiration!

I also did forget to mention, but this project is OSHWA certified too :D https://certification.oshwa.org/ca000068.html

Routing is honestly one of my favorite parts of making a PCB, there's something about the feeling of understanding exactly what each trace is doing that I find exhilarating. The pr…

I'm probably going to run Marlin just because it would be the first 3D printer I've actually made and I've heard it's more beginner friendly. I think Klipper also needs a dedicated…

4 layer boards actually make it easier instead of more advanced in my opinion. You can have a dedicated ground and power plane which makes routing much simpler, and the fields are …

That's a really cool idea! I have a couple idea's on how I wanted to do it: - Belt printer fitted into a briefcase (the harbor freight case form factor would be good for that!) - P…

3D printing is such a fascinating field of technology, so a couple months ago, I decided to take a deep dive and learn how they actually work! This took me to one of my very first …

Hey guys, thanks for all the love :D The website went down because of the traffic and large images, so I've temporarily switched hosting, and it should stay up now (DNS propagation…