user71424: I want to use a single Arduino board and link it to both the ANALOG CO2 GAS SENSOR (MG-811 SENSOR) and ANALOG PH SENSOR - METER KIT. I was wondering if the Uno Rev 3 had enough pins or do I have to go with the Mega.

user68826: Nano board has a bunch of analog and digital pins. It does good and cheap. But for convenience UNO board is preferable for its large size easy handling and easy pin and wiring management.

71424: <p>I want to use a single Arduino board and link it to both the ANALOG CO2 GAS SENSOR (MG-811 SENSOR) and ANALOG PH SENSOR - METER KIT. I was wondering if the Uno Rev 3 had enough pins or do I have to go with the Mega.</p>
 68826: <p>Nano board has a bunch of analog and digital pins. It does good and cheap. But for convenience UNO board is preferable for its large size easy handling and easy pin and wiring management.</p>
