Backlit keyboard
I work as a programmer and as many programmers I work on / work at home at night (and when it is). But the problem is that I don’t like to work without electricity (it’s completely different to communicate in ICQ or play games), but I cannot turn on the light for the reason that my wife is going to bed.
On the internet and on Habré there are many articles ( example 1 , example 2 ) about how to make the backlight for the keyboard, but everywhere in the examples you need to spoil either the keyboard or the table, but this does not smile at me.
And having come across an article about an LED lamp for small works that plows from a battery-tablet, I had an idea to make a mobile backlight for a keyboard that would be powered by the same tablet.
What do we need
First, of course, desire. Perhaps it will be caused by inspiration and the desire to create something, and perhaps by some fatigue to write programs in the dark, but still without it in any way.
Further details: 2 LEDs (better than white), 2 tablet batteries for 3B, 2 stationery clothespins (you can buy at any office supply store and I understand that I bought the biggest ones; in any case, imagine how these clothespins will hold on to the keyboard) .
And also a piece of twisted pair, a soldering iron, solder, nippers, a matchbox (or a piece of other thin cardboard) and of course electrical tape (well, as here without it).
Given the above, and checking the correct location of the hands, you can safely begin to manufacture the device.
')
Get to work
First, we take one of the wide sides of the matchbox, bend it in half, but we don’t need to press it tightly, there must be a battery inside, and cut the cardboard so that (from the opposite fold) the battery hides about half as in the picture.
The other two sides should be a little longer than the tablet itself, in order to cut the cardboard along the fold and turn it - it turns out to be a pocket. Next, you need to wrap the pocket with tape, while it is desirable that the battery was inside, otherwise then it risks not fit in its place, but it must also enter / exit tightly without a hammer.
Then on the bend we punch 2 holes in opposite sides and push the wires from the twisted pair in advance to the insulation in the place where the wire will be in the pocket. Bend the tips of the wires to the edges of the pocket so that the battery would touch these wires with different poles.
Now you need to wrap the entire pocket with wires with tape several times for durability and wind it, all the same wonder tape, pocket to the clothespin:
and solder to the tips of the wires LED. True, I stillhave nothing to do for beauty put the wires in a twisted pair casing. The second is by analogy.
Test
They say - the test of something made by himself is worth it to do something with his own hand.And of course you can not ignore the pride in himself.
What can I say. I like it. Conveniently. Does not hit the eyes. The lighting is sufficient. At any time, you can remove the clothespin from the keyboard and turn off the device, taking out the battery.
And still office clothespins can be used so:
On the internet and on Habré there are many articles ( example 1 , example 2 ) about how to make the backlight for the keyboard, but everywhere in the examples you need to spoil either the keyboard or the table, but this does not smile at me.
And having come across an article about an LED lamp for small works that plows from a battery-tablet, I had an idea to make a mobile backlight for a keyboard that would be powered by the same tablet.
What do we need
First, of course, desire. Perhaps it will be caused by inspiration and the desire to create something, and perhaps by some fatigue to write programs in the dark, but still without it in any way.
Further details: 2 LEDs (better than white), 2 tablet batteries for 3B, 2 stationery clothespins (you can buy at any office supply store and I understand that I bought the biggest ones; in any case, imagine how these clothespins will hold on to the keyboard) .
And also a piece of twisted pair, a soldering iron, solder, nippers, a matchbox (or a piece of other thin cardboard) and of course electrical tape (well, as here without it).
Given the above, and checking the correct location of the hands, you can safely begin to manufacture the device.
')
Get to work
First, we take one of the wide sides of the matchbox, bend it in half, but we don’t need to press it tightly, there must be a battery inside, and cut the cardboard so that (from the opposite fold) the battery hides about half as in the picture.
The other two sides should be a little longer than the tablet itself, in order to cut the cardboard along the fold and turn it - it turns out to be a pocket. Next, you need to wrap the pocket with tape, while it is desirable that the battery was inside, otherwise then it risks not fit in its place, but it must also enter / exit tightly without a hammer.
Then on the bend we punch 2 holes in opposite sides and push the wires from the twisted pair in advance to the insulation in the place where the wire will be in the pocket. Bend the tips of the wires to the edges of the pocket so that the battery would touch these wires with different poles.
Now you need to wrap the entire pocket with wires with tape several times for durability and wind it, all the same wonder tape, pocket to the clothespin:
and solder to the tips of the wires LED. True, I still
Test
They say - the test of something made by himself is worth it to do something with his own hand.
What can I say. I like it. Conveniently. Does not hit the eyes. The lighting is sufficient. At any time, you can remove the clothespin from the keyboard and turn off the device, taking out the battery.
And still office clothespins can be used so:
Source: https://habr.com/ru/post/97677/
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