I took apart the usb cable or rather cut into the wire placed a diode in series with the positive or negative wire to allow current to flow in to arduino not out...
Would an externally powered usb hub be a safe option?
Use a schottky diode, voltage loss reduced to ~0.3V range. Only get 500mA from the port, pick a diode accordingly.
it short circuited or something the moment it was plugged in, it was the first class in arduino
I'm sorry to be asking so many questions, but when I search for a schottky diode I get over 300 different items. I figured I needed to search for a 500mA but then I get names with 50v or 30v in them. Also, will the voltage loss interfere with my projects?
As for the macbook, it short circuited or something the moment it was plugged in, it was the first class in arduino
If Apple follows the usb standard, there must be a 500ma fuse in there that even if the arduino is shorted, it should not have burned the usb port; Even if the usb port is burned, the computer should still function.
<sarcasm>Besides if you are a good Mac user and only use your Mac with Apple or other pre-approved products, why would you ever need such protection in the first place?</sarcasm>
it short circuited or something the moment it was plugged in,
and the macbook harddisk is permanently damaged
and seeing a classmates macbook air + arduino literally dying after plugging in
The whole point about a Macbook Air is that it does not have a hard drive in it!!!!