mbot Extension

import Tabs from '@theme/Tabs'; import TabItem from '@theme/TabItem'; import YouTubeShortEmbed from '@site/src/components/YouTubeShortEmbed'; import GooseDesktopInstaller from '@site/src/components/GooseDesktopInstaller'; import CLIExtensionInstructions from '@site/src/components/CLIExtensionInstructions';

<YouTubeShortEmbed videoUrl="https://www.youtube.com/embed/QKg2Q6YCzdw" />

This tutorial will get you started with deemkeen's MQTT MCP server for the MakeBlock mbot2 rover, and outline some code changes we made along the way.

:::tip Quick Install Command

Environment Variables

:::

Configuration

<Tabs groupId="interface"> <TabItem value="cli" label="goose CLI"> <CLIExtensionInstructions name="mbot2" description="Control a MakeBlock mbot2 rover through MQTT and MCP" command="/path/to/java -jar /path/to/mbotmcp-0.0.1-SNAPSHOT.jar" envVars={[ { key: "MQTT_SERVER_URI", value: "▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪" }, { key: "MQTT_USERNAME", value: "▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪" }, { key: "MQTT_PASSWORD", value: "▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪" } ]} commandNote={ <> Replace <code>/path/to/java</code> and <code>/path/to/mbotmcp-0.0.1-SNAPSHOT.jar</code> with your actual Java installation and JAR file paths. </> } infoNote={ <> MQTT_SERVER_URI has a value like <code>tcp://1.2.3.4:1883</code>. MQTT_USERNAME and MQTT_PASSWORD are required to exist, but can be empty strings if your MQTT server does not require authentication. </> } /> </TabItem> </Tabs>

Example Usage

The available commands allow you to drive the mbot2 rover around, including:

• "turn left" or "turn right""
• drive "forward" or "backward"
• "explore" randomly
• "stop" exploring
• "beep"

The default distance to travel is 70cm (about 27 inches), and the turn angles are set to 90 degrees. You can change these values in the Python code on the mbot2. The mbot2 has a lot of other capabilities with the proximity sensors, lights, and color detection sensor on the bottom of the unit that you can add to the Python code, and will need to update the Java code to include those commands via MCP.

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