DFRduino GPS Shield For Arduino > Active Antenna ?

[thierry]

Hello,

My question is: It's possible to connect a Active GPS Antenna ?
In the descriptif of card, it' annoted: "Antenna supervisor and supply"

For me, it must have two requirements for  "Antenna supply”
1er requirement:
this module series is LEA-5A, LEA-5,  LEA-5T Or LEA-5H  (http://www.u-blox.com/en/gps-modules/pvt-modules/previous-generations.html)
It’s ok
2nd requirement:
it takes a VCC (3.3V) in the pin 18 “VCC_REF” ?   but in your schema  “VCC-REF” is not connected.
this is correct?  Or  this is  possible by software command ?

Regard
Thierry

[thierry]

up

[Hector]

Hi Thierry,


Do you speak spanish?


Sorry for the late reply. We are very busy getting ready for Maker Faire in San Francisco, California.


To answer your question:


Pin 18 is disconnected. From looking at the schem for the GPS chip you could solder a resistor between Vcc_RF and V_ANT, but this would be under your own risk, and it is dangerous. You could permanently damage your GPS.


We will put in a small jumper to enable users to use an active antenna in the next revision of this shield

[thierry]

Thank Hector for the response . No Speak Espagnola (I am French). My friend speaks Spanish very well. why?

I bought the card. It works very well. I'm on NetDuino (3.3V) . Tested so far with uart.
this is a very good card (good choice of GPS)

"Maker Faire in San Francisco, California"  that's good. I do not pensse we have this kind of event in France.

Regards
Thierry

[Hector]

Hi Thierry,


I am Mexican, I thought because of the way you worded some part of your post you might speak Spanish, but French also makes sense


I'm glad you have the shield working for you.


Many places are starting to have their own Maker Faire. I hope France will have one soon. I think French people are very creative and a Maker Faire in France would be very interesting