The SPI communication interface is reserved for easy access to /STM32 and other main control boards; the onboard level conversion chip is compatible with 3.3V and 5V level interfacesNo backlight required, the last screen display can be for a long time when the power is offThe power consumption is very low, basically only consumes power when refreshingOnboard 40PIN GPIO interface is similar in size to , suitable for 5/4B/3B/3B+ motherboardsSuitable for mall price tags, asset equipment tags, electronic shelf labels, conference name tags, etcWorking voltage: 3.3V/5VDisplay colors: red, black, whiteGrayscale: 2Global refresh: 16sCommunication interface 3-wire SPl, 4-wire SPIResolution: 360 x 240pixelsViewing angle: 170Colour:As ShownMaterial:PCB+electronic componentsPackage Contents:1 x E-ink Screen ModuleOnly the above package content, other products are not included.Note: Light reflection 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.