---
id: screens
title: Screens
sidebar_label: Screens
sidebar_position: 2
---

import Tabs from "@theme/Tabs";
import TabItem from "@theme/TabItem";

There are currently two different screens supported by the RAK WisBlock system:

<Tabs
groupId="rakscreens"
queryString="rakscreens"
defaultValue="OLED"
values={[
{label: 'OLED Display', value: 'OLED'},
{label: 'E-Ink Display', value: 'E-Ink'}
]}>
<TabItem value="OLED">

The [RAK1921 OLED display](https://store.rakwireless.com/products/rak1921-oled-display-panel) is a 0.96 inch monochrome display.
US Distributor - Purchase link: [Rokland](https://store.rokland.com/products/rak-wireless-wisblock-oled-display-rak1921-pid-110004)

- 0.96 inch OLED display
- Resolution 128 x 64 pixels
- I<sup>2</sup>C interface

This item requires soldering.  
Further information on the RAK1921 can be found on the [RAK Documentation Center](https://docs.rakwireless.com/Product-Categories/WisBlock/RAK1921/Overview/#product-description).  
Similar modules are widely available from other suppliers, but do check the boards as some have the VDD and GND pins swapped round. This will prevent directly soldering the display to the baseboard. The preferred order is VDD, GND, SCL, SDA.
If pin ordering on the OLED board are swapped, there are some tricks to allow either reconfiguring the pins of the OLED via soldered jumpers, or by carefully soldering wire for those pins that are out-of-sequence. The final option is to use longer wires between the board and display, which permits re-ordering the wires as required.

[<img alt="0.96 inch OLED display" src="/img/hardware/screen.png" style={{zoom:'25%'}} />](/img/hardware/screen.png)

</TabItem>
<TabItem value="E-Ink">

The [RAK1400 EPD module](https://store.rakwireless.com/products/wisblock-epd-module-rak14000) is an ultra low power E-Ink display with three user buttons.

- 2.13 inch black and white E-Ink display
- Three button module
- Resolution 212 x 104 pixels
- Occupies the IO Port of a Wisblock Base

- US Distributor - Purchase link: [Rokland](https://store.rokland.com/products/rak-wireless-wisblock-epd-module-rak14000-pid-110024)
- Firmware for 5005 with RAK14000 e-paper: [`firmware-rak4631_eink-X.X.X.xxxxxxx.uf2`](/downloads)

  <img
    alt="RAK4631 5005 14000"
    src="/img/hardware/rak4631_5005_epaper.jpg"
    style={{ zoom: "50%" }}
  />

Please note only the white-black display is supported at this time, the white-black-red display may work, but is not supported.  
Further information on the RAK14000 can be found on the [RAK Documentation Center](https://docs.rakwireless.com/Product-Categories/WisBlock/RAK14000/Overview/#product-description).

</TabItem>
</Tabs>