I have a Sparkfun GPS Logger Shield and I want to save power by shutting it off when I do not need GPS readings. Now reading the hookup guide it says that the "EN" pin can do this: "Active-high chip-enable – pull low to reset or turn off".
I wanted to ask some advice as to what this actually means and how I safely go about it. Is it as simple as:
pinMode(pin, OUTPUT); //turn off digitalWrite(pin, LOW); //turn on digitalWrite(pin, HIGH);
Where the pin is a digital pin on the Arduino and it is connected to the "EN" pin of the GPS shield.