Hi there, is buying an USB Wi-Fi dongle too boring for you?
I know it is, so let's make it a little bit more interesting and build one.
Okay, you might be asking what is the USB Wi-Fi good for.
Literally every device has its own Wi-Fi adapter right?
Well, imagine installing new fresh windows on your computer, there is a solid chance it has no drivers for the Ethernet adapter.
And finding the drivers on another computer and copying it … that's too much work.
But with this device you can just plug it in, connect to the internet and let a program to find the drivers for you.
So what I got here used to be a Chinese android tablet and I found this little module on it.
I also found an exactly the same module on this e-book reader motherboard.
I googled the module and found this image.
As you can see, making an USB stick will be a very easy task as it's already USB based.
Just one little problem is that the USB gives us 5 volts, and we would like 3,3 volts.
Using a resistor to drop the voltage might be a bad idea, because the power consumption of the module isn't linear.
So in an idle state for example it would get much higher voltage.
For the first test I used this USB to SATA adapter.
It has a voltage regulator on it, which gives us a stable voltage even if the current is variable.
So … I'm using this SATA adapter only as a 3,3 volt source and the USB cable to transfer the data.
The USB cable is already connected and now I'm gonna give it some electricity.
And hey it works.
The device doesn't even require any special drivers as it's so basic.
That's nice but I can't imagine having this cable tangle lying around … just like that. Let's make it beautiful.
I have bought a few those regulators in a local electro store.
It is the same thingy that was on the SATA adapter.
But of course it's not the only regulator on this world.
I have found those components on random circuit boards, they are basically the same thing.
If you look on the internet, you will find people hooking some additional capacitors to it.
It just helps to "smooth" the voltage, but I don't care much.
The USB power source is stable enough and the Wi-Fi module has its own capacitors to soften the power fluctuations so screw it.
Now it's just about connecting everything together.
And you know what? Let's do the same with the E-book module.
Making one took me about half an hour in total … was it worth it? Of course it was.
And that's it for this video, make a few of those thingies yourself and have a nice day!



For more infomation >> ybf Rock the Croc 3piece Eye Set - Duration: 10:29. 
For more infomation >> HSN | Smart Home Electronics 08.05.2017 - 09 AM - Duration: 1:00:01. 
Không có nhận xét nào:
Đăng nhận xét