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    41j

    41j.com · Personal blog · on HN since 2012

    The personal blog of a developer and hardware tinkerer covering a graphical terminal, DNA sequencing, chip die images, and embedded electronics.

    Visit blogRSSHN submissions
    Hardware & ElectronicsScienceProgramming
    What HN says

    HN links it for the HTerm graphical terminal, DNA sequencing IP summaries, and chip decapping and die images; one commenter reports a broken DEB download link.

    Stats for nerds
    19HN people shared it
    25linked in comments
    184story points
    Aug 2026last shared
    2013people per year2026

    Top posts on HN

    1. 1
      HTerm – The Graphical Terminal
      8 people · 138 points · first shared 2013 · 12 comments on HN
    2. 2
      Common Git screwups and solutions
      3 people · 11 points · first shared 2015 · Discussion on HN
    3. 3
      Thoughts on applying to YC as a science based startup
      1 person · 7 points · first shared 2018 · Discussion on HN
    4. 4
      My take on the Adapteva Parallella
      2 people · 4 points · first shared 2012 · Discussion on HN
    5. 5
      A Brief Computational Analysis of “Pen-Pineapple Apple-Pen”
      2 people · 3 points · first shared 2016 · Discussion on HN
    6. 6
      PIC versus AVR
      1 person · 3 points · first shared 2016 · Discussion on HN
    7. 7
      The Next Few Years in DNA Sequencing
      3 people · 2 points · first shared 2021 · Discussion on HN
    8. 8
      MinION DNA sequencer image dump of silicon
      1 person · 2 points · first shared 2022 · Discussion on HN
    9. 9
      A visit to an electron microscope
      1 person · 2 points · first shared 2015 · Discussion on HN
    10. 10
      M7 WiFi Camera Notes
      1 person · 2 points · first shared 2025 · Discussion on HN

    What HN people wrote when they linked it

    • akavelMay 2014

      Hm, I remembered something seemed to be linked here on HN some time ago, so after quick googling:

      https://news.ycombinator.com/item?id=7539648

      http://41j.com/hterm/

      Surprised that you missed it, so I'm still not quite sure if maybe I misunderstood something in your question, or you were just having some healthy holidays around that particular time :)

      [EDIT] Oh! For more added fun, I've stumbled upon ReGIS's sibling for bitmaps, SIXEL; some pretty screenshots e.g. at:

      http://web.archive.org/web/20140521194225/https://pypi.python.org/pypi/PySixel/0.1.5 (submitted to the Wayback Machine, as it loads faster from there for me...)

    • new299Mar 2019

      While sulfuric or nitric acid is the best way to do this, you can also decap using a box cutter and some patience. I recently did this to figure out if an opamp I bought was fake:

      http://41j.com/blog/2019/03/various-op177-die-images/

      I’ve posted some better images here:

      https://twitter.com/new299/status/1111301269988106245?s=21

      I’m going to try and get setup to decap properly. But the for those more concerned about using the required acids, a box cutter can give some insight into what’s going on in many devices...

    • mellingSep 2013

      I remember that the early comments were pretty negative on the Parallella.

      https://news.ycombinator.com/item?id=5557985

      http://41j.com/blog/2012/10/my-take-on-the-adapteva-parallella/

      How does the product rate now that it's finished? I bought one and I think it should be shipping in the next week or two. My feeling was that good or bad, supporting the Kickstarter campaign might help spur the industry just a tad bit faster. We really seemed to have stalled on multi-core general purpose computers.

    • KirinDaveJun 2018

      Lots of terminals support both inline and loaded graphics. A surprising number of terminals support things like OSC 1337: https://chromium.googlesource.com/apps/libapps/+/master/hterm/doc/ControlSequences.md#OSC-1337

      It's worth noting that iTerm2 and ChromeOS's HTerm (https://chromium.googlesource.com/apps/libapps/+/master/hterm) are a popular but hardly singular example. The (unfortunately name conflicted) HTerm/Hackterm is a pretty cool example of an older standard: http://41j.com/hterm/

    • keymeOct 2019

      I found your hack (http://41j.com/blog/2016/09/mirrorswitch/) very interesting. Enough to pop open a dumb switch I had laying around...
      RTL chipset. Googled the DS in 2 minutes. What do you know... VLANs, port mirroring, IGMP snooping, ACLs and an embedded 8051!

    • NuxMay 2013

      Would love to try it, but the "Linux" link points to a DEB package (I'm on RPM distro ..) that's missing (404):
      http://41j.com/hterm/hterm_0.0.1-1_amd64.deb

      Can you provide a generic binary?

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