Follow these steps to set up ROS on Ubuntu MATE:

1. To install the OS, follow these steps:
   1. Download the Ubuntu MATE bionic arm64-based version image file from this link: https://ubuntu-mate.org/raspberry-pi/ubuntu-mate-18.04.2-beta1-desktop-arm64+raspi3-ext4.img.xz.
   2. Once the image is downloaded, insert the SD card into your system and open Etcher.
   3. Select the downloaded image and the specific SD card location and click Flash!.
2. Loading the OS requires that the SD card is loaded. Power the SBC using an appropriate power supply adapter. If everything is successful, you should see the following output (the text and numbers in this image are intentionally illegible):

3. Installing ROS is pretty straightforward, as we saw in the Installing Armbian and ROS section. Follow the same steps mentioned in that section.

Now, let's learn how to set up ROS on Jetson Nano.