using the GPRSshield with an Arduino Mini 5V

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#1

Hi!

I would like to combine the GPRSshield with an Arduino Mini Pro 5V to build an compact sensor.

I am not sure what voltage the GPRSshield needs. My Mini only has 5V available. Will I have to provide the 3.3V too? (or only the 3.3V?)

I’ll have to connect the TX, RX (7,8) the GND, 5V ? Is there something else what I’ve to do?

Thank you!
Wolfgang

#2

Hi Wolfgang,
You only need to connect the 5V, GND, TX,RX to the corresponding pins of GPRS Shield, as the shield could be worked at 5V. The Tx and Rx could be hardware serial pins(1,0) or software serial pins(8,7) from the Arduino board.

Regards,
Steve

#3

Steve,

thank you very much for your response! That makes it easier for me. - If I want to use it with an 3.3V Arduino, is this possible too? Can one choose between 5V or 3.3V or is only the 5V ping supported?

Best regards
Wolfgang

#4

The GPRS Shield could not be powered by 3.3V, so it can only work with 5V Arduino.

Regards,
Steve