Matia

Matrials -Arduino -Attiny85 -Wires -Arduino IDE software Attiny is a micro processor and it can do what normal Arduino can do, but much smaller. Attiny has eight pins, reset, Analogput 1 ~3(also can be used as an digital input). 2 more Io that can be used to send PWM signal. To program Attiny you will need an older version of the Arduino IDE (1.0.5), and then you have to download the Attiny library from this link( https://github.com/damellis/attiny/archive/ide-1.0.x.zip ) add the unzipped library to the hardware folder in the main Arduino folder. After you have done that you will see bunch of board lists that means that you have completed with the libraries. Now you will connect your Arduino to your computer and Go to files and add ArduinoISP from the example. You don't want to change any thing on the ISP file just upload it to your Arduino. Now we can connect our Attiny to Arduino. This is how the Arduino and the Attiny should be connected. Pin 13 -> io 2...

How does the hydrogen Generator work? Whether the hydrogen generator is using water or extracting and reforming hydrogen from other chemicals, the basic principal of the generator remains the same. The source liquid or chemical is placed in a container with two metal plates. The plates are then "charged" (either through the introduction of electricity or through a chemical reaction) causing the elements of the source to separate into H2 and a byproduct that is not used by the generator. The H2 is then removed from the container. Uses for Hydrogen Generator Many hydrogen generators that use water electrolysis technology are sold in public as the part of fuel efficiency system to be installed in private vehicle.   An ultra-high purity hydrogen generator that works on the water electrolysis system is used in medical and research fields to produce high purity hydrogen for gas chromatography and other uses. Extraction and reformation generators tend to be used in fueling ...

I had a jump rope with a counter on it. One day it didn't work. So I took the jump rope apart and then negative side was not connected to PCB so I connected. I also added a cheating button. This process took a lot of time for me beacuse the wires would not fit in. I noticed that the LCD display isn't connected by any wires. I think the pink thing has like little wires in them so if u attach it sends data. Unfortunately, I accidently took off the pink stuff from the display. So I couldn't fix the jump rope.

Coin Experiment I had some old coins laying around my drawer so I decided to wash them with vinegar. After that, I found out that adding salt is better. On this photo, this coin was only half way into the vinegar so you can see the comparison before and after. Most of the copper coins that was in the vinegar became pink, because that is how the actual copper  looks like when the oxygen gets remove from them. I had another idea, trying a coin on a torch. At first, I thought it was kind of boring because none of the color or anything change. But as soon as I took the coin out from the torch it became really dark and looked old. I think this happens because it takes less time for the copper to get oxygen on them then steel.

How to make a Fidget Spinner I got these bearings from a leg massaging machine that I took apart a few days ago. First, I washed bearings in the water and attached to a wooden stick using a hot glue. Then I added 2 more bearings and other stick to the other side and the project was complete.