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Welcome to BotSims Let us explore Sentinel an inspection rover with twenty

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six parts and fifty two wires Open this tutorial's saved project using

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the button below the video If another project is open the workbench

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asks before replacing it Keep a backup of your own work first

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This project is a reusable starting point and every part remains editable

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Start in the three dimensional assembly Orbit to inspect the chassis drive

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wheels camera mast and sensor placement Hold the middle mouse button and

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drag to pan The assembly tree explains how parts attach Groups collect

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related components enter a group to focus on its members The inspector

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shows dimensions mass and supported parameters A detailed shape does not mean

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that every physical effect is modeled

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Open Wiring Electrical components appear automatically with named pins Follow battery positive

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into the regulator and motor driver and trace the common ground Controller

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signals connect to the driver's two channels To create a wire drag

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from a pin toward another compatible pin and release on its snap

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target Read the connection diagnostics before running Validation covers the supported interfaces

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it is not a complete circuit design certification

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Open Code to inspect the included virtual JavaScript program Sentinel reads its

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range sensor patrols forward then reverses and turns near an obstacle It

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stops when required sensor data or power is unavailable This code runs

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in a bounded browser worker It is a high level teaching interface

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not an emulator for Arduino ESP firmware or arbitrary native code You

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can edit the behavior and use the console to inspect its state

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changes

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Press Run and return to Assembly Watch the actual rover move and

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compare its battery voltage current and speed in live telemetry The differential

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drive model couples supported battery and motor behavior with mass and traction

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Pause before editing Use the panel controls to hide the inspector telemetry

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or console when you need more room The robot should answer an

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engineering question such as how a heavier payload affects acceleration rather than

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simply look animated

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Finally pause the simulation and export the project from the file controls

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The workbench saves current working state in this browser while the downloaded

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robot JSON is your portable backup Keep that file before switching devices

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or clearing browser storage The tutorial page also offers the reviewed project

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download and a written transcript Continue with Reach for a moving arm

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or Kestrel for a drone packaging and wiring study Each project explains

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its own modeling limits