[aprssig] has anyone built/modified a USB to TTL level converter??

alexandru yo2ldk at yahoo.com
Thu Jun 2 11:19:10 EDT 2011

@Bob K8YS,
hi, you need something like this :


work very well and is a good interface to transceiver and you can leave cell 
phone back in garage :)

alexander- yo2ldk

From: Bob <k8ys at fuse.net>
To: TAPR APRS Mailing List <aprssig at tapr.org>
Sent: Thu, June 2, 2011 2:58:34 PM
Subject: [aprssig] has anyone built/modified a USB to TTL level converter??

I need TTL.
I have RS232
I have USB
I do not have a RS232 port. Rules out the standard USB to RS232 dongle.

I think that I want to take an old cell phone to computer interface that has
a USB to RS232 level converter. It is a common chip, and I have the drivers.

I want to take the RS232 from the cell phone cable and feed it to a MAX233
to get TTL in/out.

Then use the TTL to talk to the IC706m2g to control the radio.

Without reinventing the wheel, is there a "better way"?

Bob K8YS

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