Hello,
I'm thinking of buying this module to use with Arduino (5V)
https://www.ebay.es/itm/A6-GPRS-Pro...520106?hash=item1a4055e2aa:g:moUAAOSwMGVaVzB6
In the description it says: "Interface logic voltage: 3.3V". It has its own power regulator.
My question is: is 5V tolerant the interface (rx, tx) of this module?
I'm thinking of buying this module to use with Arduino (5V)
https://www.ebay.es/itm/A6-GPRS-Pro...520106?hash=item1a4055e2aa:g:moUAAOSwMGVaVzB6
In the description it says: "Interface logic voltage: 3.3V". It has its own power regulator.
My question is: is 5V tolerant the interface (rx, tx) of this module?