IR port from COM mouse
Once it was necessary to check the prehistoric (Russian yet) remote control. There were no funds. Rummaging in the Internet, I found several ideas. I was struck by the idea of making a simple IR port from: mice! Computer, of course. We will start with this device.
Anemometer
There was a task to collect anemometer for one project, so that it was possible to take data on a computer via USB. The article will focus more on the anemometer itself than on the data processing system from it. . .
Solar battery
The solar battery is a device for converting the energy of the sun into electricity. The high performance solar panels you can buy at Radio Shack and other stores are made from specially treated silicon and require huge
Charger for car battery from computer power supply.
On this page I will tell you about how to remake the power supply of a personal computer with my own hands into a charger for car (and not only) batteries. The advantages include the fact that with this charger
Jammer for the TV (Pig)
Sometimes it becomes necessary to make a big noise for the TV and radio range. For example, your wife watches "Do not be born beautiful," and you need to see the Champions League. For this purpose, use special devices - "Silencers" or popular
Microscope without lenses.
Over its nearly 300-year history of development, the microscope has probably become one of the most popular optical devices widely used in all areas of human activity. It is especially difficult to overestimate its role in the education of students
Water cooling system.
Another interesting variation on the topic of water cooling. This time in the external version with a large radiator, luminous fans and a blue tank for water. All this you can do with your own hands, spending less than a thousand rubles.
A selection of simple and effective schemes.
The first scheme is the simplest multivibrator. Despite its simplicity, its scope is very wide. No electronic device can do without it. . .
Camera gun.
Can I photograph the moon at home? “You can,” the person who never held the camera in his hands will answer. “No,” the professional will answer. To do this, you need expensive photo equipment worth at least $ 1,500. Normal fotik only remove
Do-it-yourself solar collector.
If your country house does not yet have electricity and gas, and heating water is a certain difficulty, I propose to make a solar water heater for showers and washing dishes from materials that can often be found in landfills.
Simple self-contained burglar alarm system.
Sometimes there is a need for an autonomous inexpensive security alarm, for example, for protection in the country. The use of industrial designs in such cases may be economically impractical.
Air-hydraulic rocket
The air-hydraulic model is one of the simplest in rocket modeling. It is characterized by simplicity of design and operation. This model makes it possible to conduct many different experiments and, most importantly, get acquainted with the action
Flamethrower
What only people do not collect at home. . . To assemble a flamethrower from plumbing accessories - there are no barriers for real home-made workers!
FUNNY HAND-MADE USB Flash Drive
This home-made USB flash drive (yes, yes, a flash drive!) Will appeal to those who like to surprise and mislead others :) It looks like a torn USB cable and is essentially such, only a tiny 1 GB flash drive is built into its connector
Assembling a subwoofer with your own hands!
Do-it-yourself subwoofer is much cheaper and better than Chinese models. Yes, and much more beautiful. . .