Yesterday, I went to a parts shop in Machida to purchase parts for an experimental device using a Raspberry Pi.

Raspberry Pi is an educational board computer of several thousand yen, but it is a splendid computer that has been monitoring the Ebata's house with working for several years.

Anyway, the initial cost is cheap, so it is very helpful when I want to make a prototype system in a short time.

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On the other hand, the product lineup of enclosure, with water-proof and dust-proof for outdoor environment, is very poor.

There are also few types of communication modules (4G not WiFi).

Well, above all, it cannot be helped, since they are not intended for outdoor use.

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At the moment, the most useful are

"products that can be purchased at 100 yen stores"

Especially, plastic cases are abundant in size, and they are very useful.

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However, I cannot get metal adapters that secure the board computer, even at 100 yen stores"

I had a hard time getting the strangely sized metal tool, and I had to say "which country standard they use ?”

By consulting only one parts shop at Machida, I could connect different parts. Finally I managed to them somehow.

And I purchased them in large quantities at my own expense.

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"I am almost the same as when I was buying the parts for experimentation at my own expense in my campus life" with a sigh.