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In many microcontroller-based projects, you may need to communicate with PC. There are several ways to do this like RS232 COM port, USB port, parallel port, WIFI, Bluetooth, etc. You cannot directly connect computer to your microprocessor, you need wireless modules for WIFI and Bluetooth, voltage convertors for RS232 and parallel port and a protocol engine for USB. Here I am going to show you how to make a simple USB convertor for your projects. If you are interested in making one yourself follow me.

Step 1: Things You Need

  • 1x Type A male USB connector
  • 1x 3.5mm stereo audio male connector
  • 1x FT232RL IC
  • 1x 4.7uF electrolyte capacitor
  • 1x 10nF ceramic capacitor
  • 2x 100nF ceramic capacitors
  • 1x Ferrite bead
  • About 1-5 meters 4-wire cable
  • Copper board
  • An empty case of dental floss (or anything can be used as a box)
  • PCB making tools (sandpaper, glossy paper, laser printer, PCB file, iron, ferric chloride etchant)
  • Soldering tools (iron, wire and oil)
  • FT232R USB driver (http://www.ftdichip.com/Drivers/VCP.htm)
<p>Awesome ! I have always wanted to make a custom PCB etch. Great work!</p>

About This Instructable

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Bio: I'm a mechanical engineer, and I like computer programming, mechanics, electronics and specially the robotics.
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