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powering the sim900 via non arduino mcu

http://geeetech.net/forum/viewtopic.php?f=8&t=15808

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powering the sim900 via non arduino mcu

Posted: Sun Feb 09, 2014 10:01 am
by oldnotdead
I want to power the sim900 via the 5 volts from my microcontroller (not an arduino). Do i connect
the 5 volts to the hole on sim900 board labeled 4.1 volt ? Please help as I do not want to damage
the board. Thank you.

oldnotdead

Re: powering the sim900 via non arduino mcu

Posted: Tue Mar 04, 2014 7:27 pm
by jack
HI Friend:
If only power 5 volts,that's ok.Don't worry.



Best regards.

Re: powering the sim900 via non arduino mcu

Posted: Fri Mar 07, 2014 8:10 pm
by oldnotdead
thank you for your response, I did connect the 5 volts and it is working okay.
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