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At the moment I'm using two softserials to connect to a GPS and an GSM module.

It seems not possible to have two open software-serials. So I was looking for an solution

After the initial-setup, the GPS module is only needed to be read from; while the GSM module needs to be bidirectional. So:

GPS > listen only
GSM > listen and write

Now I came across the GPS library from Adafruit, which uses an interrupt to receive data. Is this instead of a software serial. Or do I again run into the limitation?

An other solution might be to use the D0 and D1 to attach eg the GSM module. But than I won't be able to see the debug messages in my serial monitor. Is that correct?

Sorry in advance for these n00b questions. But I'm frustrated the things dont work as I want :)

edit

• This is the adafruit GPS board.
• And the board with whom it is connected: Gboard
• The Sim900 is connected to D2/D3 and the GPS is connected to A2/A3.
• D0/D1 are connected to a FTDI breakout board, which is plugged into my USB.

At the moment I'm using two softserials to connect to a GPS and an GSM module.

It seems not possible to have two open software-serials. So I was looking for an solution

After the initial-setup, the GPS module is only needed to be read from; while the GSM module needs to be bidirectional. So:

GPS > listen only
GSM > listen and write

Now I came across the GPS library from Adafruit, which uses an interrupt to receive data. Is this instead of a software serial. Or do I again run into the limitation?

An other solution might be to use the D0 and D1 to attach eg the GPS module. But than I won't be able to see the debug messages in my serial monitor. Is that correct?

Sorry in advance for these n00b questions. But I'm frustrated the things dont work as I want :)

edit

• This is the adafruit GPS board.
• And the board with whom it is connected: Gboard
• The Sim900 is connected to D2/D3 and the GPS is connected to A2/A3.
• D0/D1 are connected to a FTDI breakout board, which is plugged into my USB.

At the moment I'm using two softserials to connect to a GPS and an GSM module.

It seems not possible to have two open software-serials. So I was looking for an solution

After the initial-setup, the GPS module is only needed to be read from; while the GSM module needs to be bidirectional. So:

GPS > listen only
GSM > listen and write

Now I came across the GPS library from Adafruit, which uses an interrupt to receive data. Is this instead of a software serial. Or do I again run into the limitation?

An other solution might be to use the D0 and D1 to attach eg the GSM module. But than I won't be able to see the debug messages in my serial monitor. Is that correct?

Sorry in advance for these n00b questions. But I'm frustrated the things dont work as I want :)

This is the adafruit GPS board. And the board with whom it is connected: Gboard

The Sim900 is connected to D2/D3 and the GPS is connected to A2/A3.

D0/D1 are connected to a FTDI breakout board, which is plugged into my USB.

At the moment I'm using two softserials to connect to a GPS and an GSM module.

It seems not possible to have two open software-serials. So I was looking for an solution

After the initial-setup, the GPS module is only needed to be read from; while the GSM module needs to be bidirectional. So:

GPS > listen only
GSM > listen and write

Now I came across the GPS library from Adafruit, which uses an interrupt to receive data. Is this instead of a software serial. Or do I again run into the limitation?

An other solution might be to use the D0 and D1 to attach eg the GSM module. But than I won't be able to see the debug messages in my serial monitor. Is that correct?

Sorry in advance for these n00b questions. But I'm frustrated the things dont work as I want :)

edit

• This is the adafruit GPS board.
• And the board with whom it is connected: Gboard
• The Sim900 is connected to D2/D3 and the GPS is connected to A2/A3.
• D0/D1 are connected to a FTDI breakout board, which is plugged into my USB.

At the moment I'm using two softserials to connect to a GPS and an GSM module.

It seems not possible to have two open software-serials. So I was looking for an solution

After the initial-setup, the GPS module is only needed to be read from; while the GSM module needs to be bidirectional. So:

GPS > listen only
GSM > listen and write

Now I came across the GPS library from Adafruit, which uses an interrupt to receive data. Is this instead of a software serial. Or do I again run into the limitation?

An other solution might be to use the D0 and D1 to attach eg the GSM module. But than I won't be able to see the debug messages in my serial monitor. Is that correct?

Sorry in advance for these n00b questions. But I'm frustrated the things dont work as I want :)

At the moment I'm using two softserials to connect to a GPS and an GSM module.

It seems not possible to have two open software-serials. So I was looking for an solution

After the initial-setup, the GPS module is only needed to be read from; while the GSM module needs to be bidirectional. So:

GPS > listen only
GSM > listen and write

Now I came across the GPS library from Adafruit, which uses an interrupt to receive data. Is this instead of a software serial. Or do I again run into the limitation?

An other solution might be to use the D0 and D1 to attach eg the GSM module. But than I won't be able to see the debug messages in my serial monitor. Is that correct?

Sorry in advance for these n00b questions. But I'm frustrated the things dont work as I want :)

This is the adafruit GPS board. And the board with whom it is connected: Gboard

The Sim900 is connected to D2/D3 and the GPS is connected to A2/A3.

D0/D1 are connected to a FTDI breakout board, which is plugged into my USB.