I have built a kitchen timer and it is supposed to spend most of its life in sleep mode in order to save power. I am using the SSD1306Ascii library (SPI) by William Greiman.
In this library I have found hints to power on and off commands but I don't know how to use them:
/** Set Display off. */ #define SSD1306_DISPLAYOFF 0xAE /** Set Display on. */ #define SSD1306_DISPLAYON 0xAF
From what I could gather from the web, I need to re-initialize the display after turning it off and on again. But before I take care of that (which should be simple as it is done in setup anyway) I need to find out how to use these commands.
Would you help out a rookie?