You can play Obsidiancraft by adding the server in the Minecraft launcher.
On Minecraft Bedrock Edition, open the Minecraft launcher or Minecraft app. Go to the “Servers” tab and press “Add Server.” Enter the Obsidiancraft IP Address 155.94.175.234in the “Server Address” and the Obsidiancraft port 19132 in the “Port.” Then press “Save” and start playing.