[time-nuts] Z3801 Replacement GPS Receiver Card

Azelio Boriani azelio.boriani at screen.it
Mon Sep 17 22:39:50 UTC 2012


Or use transistors. You can translate the serial levels this way too, look
at this as an example: http://www.kmitl.ac.th/~kswichit/ap275/ap275.htm

On Tue, Sep 18, 2012 at 12:36 AM, Azelio Boriani
<azelio.boriani at screen.it>wrote:

> Yes, and you can even try an USB to serial adapter but with the TTL
> output. You can try with a simple inverter (74HC04, 74HC14 but use a
> resistor in series between the PC output and the inverter input) as some PC
> accept the 0-5V levels.
>
>
> On Tue, Sep 18, 2012 at 12:22 AM, Jim Lux <jimlux at earthlink.net> wrote:
>
>> On 9/17/12 3:00 PM, Azelio Boriani wrote:
>>
>>> OK, you can test a VP Oncore GPS receiver alone if you have a mean to
>>> translate the TTL serial port to a regular RS232 for the PC. This can be
>>> done with a MAX232 chip (or equivalent).
>>>
>>
>> There are a ton of these (serial TTL ports) available inexpensively for
>> use with Arduinos.  In the under $20 range, usually.  Try Sparkfun.com for
>> instance..
>>
>>
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>



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