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Will SIM300 or SIM340Z work with Australian phone network?

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soen

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Could someone please help.....help...
My sim340 SIM_VDD keep dropping off every 5 to 10 seconds.
It could not register to any network.
Is anyone know if the sim340 will work with australian phone network?

Thank You so much...please reply if you can....

Best regards,
soen
 

sim300 battery

hi
yes it's work with all "apn"s
your problem is because of supply of module
1- the module voltage may be less than 3.6V or higher than 4V.
2- maybe your supply cannot support the module voltage.
be success
 

    S

    soen

    Points: 2
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sim300 battery charge

Hi Sabeti, Thank you for your help. I try using 4.5V 3XAA batteries to test. and it works like a charms.
Do you know what is the LDO stand for? I saw it in the sim300 demo CCT? Do we need VEXT to get the SIM300 to work properly?
 

sim300 without battery

hi
U need to use 3.7 V litium battery (if U want use the module with battery)
VEXT use when U want to supply another chip or etc as module slave or charge the 3.7V battery
for battery harging see the hardware application for sim300
 

    S

    soen

    Points: 2
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sim300 charge

Do you know what is LDO? What is the actual component? where could we get them?
 

diagram of sim300

hi
upload it's picture
did U mean like this

 

battery for sim300

Hi Sabeti, I have got the circuit. I just don't understand why we need the LDO? My test CCT without LDO is working without problem. Do we really need the LDO? What is LDO? Why the output of the LDO is connected to the output of SIM300 (VEXT)???? I could not get the specification of that part! and do you know where we could buy one?
 

sim300 application note

HELLO I M FROM GREECE I M LOOKING FOR A SCHEMATIC DIAGRAM WITH A SIM300 ONLY FOR VOICE APLICATTION CAN SOMEBODY HELP ME?.
 

+++ sim300

Hi john,
Sorry, I am new as well about the SIM300.
I wish I could help you. Good luck.
 

sim300 greece

LDO is Low Drop Out regulator. It's typically a linear regulator with low drop voltage when it operates.
 

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