Micro USB connector pinout

Here is the connector in question:

Here are the associated pins coming out of the actual plug:

Now, here is the information from Wikipedia that ties all of these things together (in one place!)

Pin Name Wire color Description
1 VBUS Red +5 V
2 D− White Data−
3 D+ Green Data+
4 ID N/A Permits detection of which end of a cable is plugged in, “A” connector (host): connected to the signal ground, “B” connector (device): not connected
5 GND Black Signal ground

If you were wanting to wire together a simple micro USB power cable (say for a Raspberry Pi or something), all you would need to do is:

  • Run 5V to Pin 1
  • Run Ground to Pin 5

It can’t get more clear than this:

Unbelievably inexpensive parts from China

How do Chinese manufacturers sell things on EBay so cheaply? Take for example this DC-DC LM2596 Step Down Adjustable Converter Power Supply Module 1.3V-35V:

DC-DC LM2596 Step Down Adjustable Converter Power Supply Module 1.3V-35V

For $0.99 this includes EBay and PayPal charges, FREE Economy Shipping from Hong Kong, handling, packaging, labeling, and all above the cost of the item (you can’t even buy the parts for that price! $2.25 each@1500 quantity+S&H from Mouser just for the LM2596). And, this is a good quality item. Furthermore, there must also be design and production costs.

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