Operating Mode:     1.Power Down Mode:power consumption Less than 0.1uA.It can be awakened by an external interrupt,after the interrupt returns,continue to execute the source program.     2.Idle Mode:Typical power consumption 2mA     3.Normal Working Mode:Typical power consumption:4mA~7mA     4.The power-down mode can be awakened by an external interrupt and is suitable for battery-powered systems and portable devices such as water meters and gas meters.     Memory Function:     1.Program Memory:used to store user programs,data and tables and other information.     2.Digital Memory:used to store intermediate results and process data of program execution.     size:95x80mm (length, width)     Material:Plastic + Metal     colour:Blue+Black          Package Contents:     1 x Motherboard     1 x chip     1 x Infrared remote control     1 x LCD screen     1 x Android data cable     4 x Support copper pillar nut     5 x Spare jumper cap     1 x One infrared receiver     5 x DuPont line          Only the above package content, other products are not included.     Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.