[time-nuts] Z3801 Replacement GPS Receiver Card

[Jim Lux]

On 9/17/12 3:34 PM, Chris Albertson wrote:
> $20 is to much.  I pay about $4 shipping included for the DB9 with the
> Max chip attached.   So you basically just attach 5V TTL to the back
> of the connector.

That works. if you have 5V handy.. The USB to ttl serial is handy when 
you don't necessarily have 5V on a convenient pin.


  Lots of people sell these.   See ebay #180688345029
> for an example.  These work well for the Oncore GPS because both use
> 0.1 inch male headers, use 0.1" female jumpers to connect.   Buy a
> handful as they are generally useful.


Indeed... those might be useful.

What I'd also like to find is a cheap current loop interface (for 
running low speed serial connections long distances using cat 5 wire)



>
> On Mon, Sep 17, 2012 at 3:22 PM, 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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