Content originally posted in LPCWare by Rob65 on Mon Jun 13 12:03:38 MST 2011
Serge,
I also used the Conrad module (nr. 641138, see picture). It needs a clear view and will not receive a proper signal when it was on my table - it just hates any electrical interference.
Place it in the windowsill or even better in a small water tight box outdoors and it will receive a good signal.
All of my DCF enabled clocks also need a good view to the sky. The clock in my bedroom is placed 2 meters from the window, there is no other electrical equipment next to it and still it will not receive a proper DCF signal. I need to place it near a window to sync. I live in Nijmegen, just a wee bit closer to Mainflingen (approx. 350 km).
The GPS module also needs a fairly clear view to the sky. I have a GS407 module with helical antenna but I will also try the Navilock 552. Both use the uBlox 5 chipset. The Helical antenna is less directional sensitive. The block ceramic antenna from the Navilock module must be horizontally placed, pointing upwards, to receive the best signal. But the block ceramic antenna has a better gain than the helical so you could experiment with this one.
With a price of € 40,- (the GS407 was € 74,- :() it is worth a try.
Power is 5V but serial I/O is 3.3V which is perfect for the lpc13/17xx
Note that you will need a serial port for the GPS and the lpc13xx has only 1 port. The lpc17xx has up to 4 ports.
He Zero, Thanks! Nice GPS module.
Do you perhaps have a different source for the connector? € 9,- is much more than the € 3,90 suggested retail price that Navilock themselves show on the website.
Rob