Datasheet

On the EInk Friends and Breakouts, for ultra-low power usages, the onboard 3.3V regulator has the Enable pin brought
out so you can shut down the power to the SRAM, MicroSD and display.
On the Breakouts and Shields, We even tossed on a MicroSD socket so you can store images, text files, whatever you
like to display. Everything is 3 or 5V logic safe so you can use it with any and all microcontrollers.
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