Pages: [1]   Go Down
Author Topic: SIM300 GSM  (Read 403 times)
0 Members and 1 Guest are viewing this topic.
Offline Offline
Jr. Member
**
Karma: 2
Posts: 52
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

SIM300

I have a GSM shield based on a Sim300S.
when i look at the print i see that the 12V power is converted to 3.3v
and there is a max232 module on the board.

can i connect the 3.3 directly to my arduino. and drop my own max232 and the max232 on the gsm shield and connect the gsm shield directly to my serial pins of my arduino mega.



http://i00.i.aliimg.com/wsphoto/v0/606211678_1/Free-Ship-SIM300-GPRS-development-board-with-GSM-Antenna.jpg
Logged

Offline Offline
Newbie
*
Karma: 0
Posts: 12
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

As I remember this module need power source in the range of 3.4 to 4.5 V but be careful it also need a current Burst 2A (not on all cases)

and Arduino provide 3.3v and 5v but the current not excess 1A
Logged

Pages: [1]   Go Up
Jump to: