When doing DIY experiments, we often need to use the display. The Keyestudio electronic ink screen module has a 2.13-inch display with a black and white color and a resolution of 250*122.

The module dynamically displays the pattern via SPI communication.

There are 2 slide switches on the back. The P1 slide switch is for adjusting the display brightness. Sliding to “0.47” position, the display is brighter; sliding to “3” position, the display is darker.

The P2 DIP switch is used to adjust the power supply voltage. Sliding to“5VIN” position, the power supply voltage is 5V; sliding to “3.3VIN”, the power supply voltage is 3.3V.

The module comes with two positioning holes with a diameter of 3mm, easy to fix it on other devices .

For your convenience, we also provide detailed methods for using the display module and the arduino microcontroller.

Special Note: When testing, we use the IDE software 1.8.9 version; if you use other versions of the IDE, source code may be incompatible.

Technical Details

 Operating voltage: DC 3.3 or 5V (slide switch control)

 Working current: 100mA

 Maximum power: 0.8W

 Display color: black and white

 Display size: 2.13 inches

 Display resolution: 250*122

 Interface type: 8pin pin header with 2.54mm pitch

 Operating temperature range: -20℃ to +60℃

 Positioning hole size: diameter 3mm

 Dimensions: 76.4*34.5mm

 Environmental attributes: ROHS

Connection Diagram 

Link for Source Code and software:

https://1drv.ms/u/s!ArhgRvK6-RyJghWf0ZKbYMveeveU?e=tKXX0K