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Topic: Cheap GSM/GPS tracker (Read 2491 times) previous topic - next topic

jumpjack

Is this module all I need to build a cheap GSM/GPS tracker? Just a few AT commands sent by an Arduino and it's done?
http://www.futurashop.it/allegato/7100-FT971.asp?L2=MODULI%20GSM&L1=MODULI%20GSM%20E%20SISTEMI%20GPS&L3=&cd=7100-FT971&nVt=&d=65,00

I read about an additional shield to be connected between this device and the Arduino, but I don't get the reason.
Besides... WHERE are thr AT commands described?!? Are they standard?

johnwasser

You'll need the two antennas.  You should also look at the schematic of the shield.  You may find you need level shifters to connect to the Arduino.  And possibly ha heftier power source if the module draws more than 1A.
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kamalgk

Is the folowing GPS module by holox compatiable with arduino Mega2560?

http://www.holux.com/JCore/en/support/DLF.jsp?DLU=885908.pdf

johnwasser


Is the folowing GPS module by holox compatiable with arduino Mega2560?

http://www.holux.com/JCore/en/support/DLF.jsp?DLU=885908.pdf


That doesn't look like a good fit.  It requires a 3V active antenna (I don't have a clue where you would find one) and the interface is 2.8V CMOS so you would need level shifters to be compatible with 5V TTL.
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