The atlas device is connected via a ttl level serial connection, 1 transmit and 1 receive (thus 2 pins). You send it ascii message (r = read data) and it responds with the value x.xx. The other nice thing with it you can set the temperature compensation direct to the device.
So the Atlas devices gives you the true value of pH and transmits this value via a serial connection, no formatting required. Its not a voltage signal. Each Atlas device needs two pins tx & rcv unless you have a serial mutliplexor.
Atlas have arduino code on there web site so getting the value into the embedded arduino should be do able. Its how we then move this data to create a ninja object.
So the Atlas devices gives you the true value of pH and transmits this value via a serial connection, no formatting required. Its not a voltage signal. Each Atlas device needs two pins tx & rcv unless you have a serial mutliplexor.
Atlas have arduino code on there web site so getting the value into the embedded arduino should be do able. Its how we then move this data to create a ninja object.