Be careful that some GPS modules output 5V TTL. That will fry rour TS-xxxx
in a hurry. I know that for a fact.
You do not need RS-232 level shifters, but you may need one to go from 5V
to 3.3V. Usually, a 4.7k resistor in series with the Tx output of the GPS
is all you need. The input of the TS-xxxx will clamp at 3.3V and the
resistor will limit the current to a safe value. No need to do anything
with the Tx output of the TS-xxxx. The 5V device will accept 3.3V inputs
just fine.
Didier
On Fri, Feb 28, 2014 at 9:46 AM, Jonathan Leslie <>wrote:
>
>
> I dont' know the ts7200 specifically, but the ts7500 you just solder onto
> the RX and GND pins to the gps modules TX and GND pins and you are hardware
> ready to go. The GPS module broadcasts 1 a second a dump at 4800 BPS.
>
>
>
>
>
>
> ------------------------------
> *From:* Yan Seiner <>
> *To:*
> *Sent:* Friday, February 28, 2014 10:40 AM
> *Subject:* [ts-7000] TTL serial on a TS7200
>
>
> I have a TS7200 that I'd like to interface with a GPS module. Most of
> the bare modules are TTL - 3.3 to 5V. Is there a way to set up a serial
> port on the 7200 with ttl levels?
>
> I need RX, TX, and DCD pins active on the serial port for the GPS.
>
>
>
>
|