1. Acer C720 (in Japanese)

    (Not-)New Notebook PC in 2017

    My notebook PC was getting broken somehow (not the PC itself, but its AC adaptor and battery) at the end of year of 2016.

    So, I bought Acer C720 in 2017. My main criteria to select computer is how I can control the computer …

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  2. Flying Stone Tiny 01G Test Plan

    We need to specify a test plan to manufacture a board. In order to encourage designing and manufacturing by yourselves, we show our test plan for Flying Stone Tiny 01G here.

    This makes the reproducibility better, I suppose.

    Since our point is the users' computing freedom, we specifically use a …

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  3. Installing Debian Stretch

    Another (somewhat not new) notebook PC of mine

    I got Acer C720 Chromebook this year (2017).

    Since it is a good opportunity, I install Debian Stretch (now "testing") to this machine. It took a half of day (including replacing SDD and BIOS, preparation of USB memory for installation, as well …

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  4. Flying Stone Tiny 01 revision G

    Five years passed from the initial design of FST-01. Now, I have another revision "G", where "G" may stand for "Good" or "Green".

    Update is required for two reasons:

    • The LDO regulator became discon.
    • KiCAD has been changed. Especially, the file format has been changed.

    Components of FST-01

    • STM32F103TB
    • USB …
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