5 pin midi in convert to usb midi out

I am looking for help with a new project. I want to send midi control messages from my Line 6 POD HD500 which has old style 5 pin midi connectors to a Zoom MS-70 which only has a USB connector. The Zoom accepts incoming midi commands but does not send anything. I want a small box that can go right on my pedal board and needs no computer interface. I have seen some projects where the Arduino UNO has been used to send midi signals to the Zoom via foot switches but I want the POD to generate the midi command and the Arduino USB to convert it to USB mid to the Zoom. Does that make sense?

I am pretty new to this stuff so if there is a better, simpler way to do it please let me know. Thanks in advance for anybody's help!

The Zoom box is meant to be connected to a computer and so is a USB client. Therefore you need to make your Arduino into a USB host. So you will need a host shield of one sort or another and the software to drive it. That is the difficult part of the project.
Receiving the MIDI data from the Line 6 POD HD500 is the easy part, you just need a MIDI interface, either bought or made.
In effect half of this project:-
http://www.thebox.myzen.co.uk/Hardware/MIDI_Shield.html

thanks Grumpy_Mike

The idea is to build on what this guy did. He is generating the midi signal with a FS so I was hoping that I could just pass on the midi signal being generated with the POD HD500. Can the Arduino be used to translate the serial midi into USB mid?

Am I even on the right track here?

PS - sorry about the cross posting...

Can the Arduino be used to translate the serial midi into USB mid?

Yes but as I said the hard part is that you need a USB shield to make the arduino "talk" USB MIDI.
That requires a separate processor that is on the shield along with software to drive it.

Google the words

arduino usb host shield

for various types and suppliers