Power Saving Methods


I have a small project using an UNO and GSM shield with a couple of digital sensors and I am looking to reduce its current consumption.

At the moment it is consuming around 88mA and I know LEDs is a common method by cutting the tracks on the PC howevr I want to leave my UNO in tact. Also is it known howmuch current the LEDs actually comsume?

Are there any other simple methods of disabling peripherals like ADCSRA = 0 to disable ADC that I could use?

Thanks in advance

This is a good tutorial for this. Power saving techniqus