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Project Patchouli: Open-source electromagnetic drawing tablet hardware

patchouli.readthedocs.io

11–20 of 57 posts

Re: Project Patchouli: Open-source electromagnetic drawing tablet hardware

#11
post #3

The Youtube introduction video ( https://www.youtube.com/watch?v=igVscvWAR1s ) is a great explanation of the tech and the end where he retrofits it into a Panasonic CF RZ is wild.

The production quality of this video is almost too good to be true! Kudos to Yukidama!

Re: Project Patchouli: Open-source electromagnetic drawing tablet hardware

#12
As a software engineer, seeing hardware projects like this makes me want to go back to school and pick up a few electrical engineering courses. The hardware space just seems to unlock so much (honestly blown away with the LCD retrofit at the end of the video: https://www.youtube.com/watch?v=igVscvWAR1s )

I've played with simple electronics on the arduino and raspberry pi platforms but this is a whole new level. Anyone gone down this path? Something you would recommend?

Re: Project Patchouli: Open-source electromagnetic drawing tablet hardware

#13

Earlier quoted context omitted.

Why negative points. Can I not say I'm happy he or she made this project. It's not for the internet. It's for the content poster only I wrote that I liked it. At that time I was the only poster. I didn't write first! I wrote awesome. Because I liked it. Don't assume that everything is for you the reader to read and not the poster to read

Comments should add something worthwhile to the discussion. Redundant comments ("noise") tend to be downvoted. (I didn't downvote you!) If you meant for the comment to be read by the content poster, then something more meaningful than a single-word response would have been more appropriate. These are the rules and practices which have kept HN lean and functional over nearly two decades.

[deleted]

Re: Project Patchouli: Open-source electromagnetic drawing tablet hardware

#14

Earlier quoted context omitted.

Why negative points. Can I not say I'm happy he or she made this project. It's not for the internet. It's for the content poster only I wrote that I liked it. At that time I was the only poster. I didn't write first! I wrote awesome. Because I liked it. Don't assume that everything is for you the reader to read and not the poster to read

I use a pen tablet daily for many years it's very very close to my heart and my work. Don't just assume sarcasm where it is none. Not everyone shares the same culture. Also why should I write a long swan song when a simple awesome is accurate and conveys everything I wanted to say

You could have expressed that with a upvote.

Text comments here are supposed to have more content. (And lamenting about downvotes has a high chance of getting more downvotes)

Re: Project Patchouli: Open-source electromagnetic drawing tablet hardware

#17

Earlier quoted context omitted.

Why negative points. Can I not say I'm happy he or she made this project. It's not for the internet. It's for the content poster only I wrote that I liked it. At that time I was the only poster. I didn't write first! I wrote awesome. Because I liked it. Don't assume that everything is for you the reader to read and not the poster to read

I use a pen tablet daily for many years it's very very close to my heart and my work. Don't just assume sarcasm where it is none. Not everyone shares the same culture. Also why should I write a long swan song when a simple awesome is accurate and conveys everything I wanted to say

[deleted]

Re: Project Patchouli: Open-source electromagnetic drawing tablet hardware

#19

As a software engineer, seeing hardware projects like this makes me want to go back to school and pick up a few electrical engineering courses. The hardware space just seems to unlock so much (honestly blown away with the LCD retrofit at the end of the video: https://www.youtube.com/watch?v=igVscvWAR1s ) I've played with simple electronics on the arduino and raspberry pi platforms but this is a whole new level. Anyon…

Honestly, just pick up the Art of Electronics - Horowitz and Hill. Spend some time working through that book. By the end of it, you'll have a better grasp of electronics than 90% of the engineers I've worked with, all who are EE bachelors/majors. It's a 3 month job at most, less if you do a dedicated hour a night. Then pick up some breadboard and parts, and build to your hearts content.

Making a working circuit is honestly very easy once you know the basics. Look inside a Made in China knockoff appliance, and you'll see that most things can be made from a couple of conponents and a microcontroller. Pull apart an old TV remote or bluetooth device, and look up the part numbers and what they do. There's not much to it. You have to remember that most of the stuff getting designed and built in South East Asia is done by people with zero qualifications. Electronics being "the thing that smart university people do" in the West is mostly a mental block, culturally constructed because people don't want their kids getting electrocuted so bombard them with constant threat of death if playing with electricity (which mostly isn't a worry anymore unless you're working with mains power).

The true discipline of Electronic Engineering is designing something that works for every eventuality and environment, with close to 100% reliability, at the very cutting edge of what is possible with the components we can afford while balancing physical and financial constraints. That's something which takes years of both academic study and industrial experience.

Re: Project Patchouli: Open-source electromagnetic drawing tablet hardware

#20

As a software engineer, seeing hardware projects like this makes me want to go back to school and pick up a few electrical engineering courses. The hardware space just seems to unlock so much (honestly blown away with the LCD retrofit at the end of the video: https://www.youtube.com/watch?v=igVscvWAR1s ) I've played with simple electronics on the arduino and raspberry pi platforms but this is a whole new level. Anyon…

Honestly, just pick up the Art of Electronics - Horowitz and Hill. Spend some time working through that book. By the end of it, you'll have a better grasp of electronics than 90% of the engineers I've worked with, all who are EE bachelors/majors. It's a 3 month job at most, less if you do a dedicated hour a night. Then pick up some breadboard and parts, and build to your hearts content. Making a working circuit is ho…

"Art of Electronics - Horowitz and Hill."

very good recommendation, that book help me turn my studies in to reality

electronic circuit emulators will help with the basics as well (eg https://www.falstad.com/circuit/)

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