Building Autonomous Mobile Robots
Learn how to turn code and raw electronics into a smart, self-driving machine. Connect motor drivers and microcontrollers, establish reliable power, coordinate software with ROS 2, and guide your robot through unknown rooms using LiDAR and SLAM.
Like Duolingo, but for Building Autonomous Mobile Robots. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
A short one: 10 levels across 2 sections, about 20 minutes end to end, roughly 4 days at five minutes a day. It moves through From Code to Physical Motion and Autonomy and Spatial Intelligence. It starts from scratch.
Free forever · No credit card · iPhone & Android
Key ideas in Building Autonomous Mobile Robots
- Microcontroller pins only output tiny signal currents (typically 20-40 mA), while drive motors draw hundreds of milliamps or more
- Connecting a motor directly to a microcontroller pin can permanently burn out the chip
- A motor driver acts as a safe middleman, taking low-current control signals from the microcontroller to switch a separate high-current power supply on and off
- Pulse-width modulation (PWM) changes motor speed by pulsing full voltage on and off hundreds of times per second
- A 50% duty cycle means the pin is fully on (12V) half the time and fully off (0V) half the time, not holding a steady 6V
- Motors blur these rapid full-power bursts into smooth rotational speed due to mechanical inertia
- Differential drive steers a two-wheeled robot solely through the difference in speed and direction between its left and right wheels
- Driving wheels in opposite directions at equal speed causes the chassis to rotate in place with a zero turning radius
- Running one wheel faster than the other curves the robot toward the slower wheel
- Relying solely on time or motor runtime cannot guarantee how far a robot travels because wheel slip, battery drain, and carpet friction change actual movement
- Wheel encoders produce discrete pulses (ticks) as wheels turn, allowing the robot to measure real rotational travel
- Counting encoder ticks lets a robot stop after moving a specific distance regardless of terrain resistance
- Starting or rapidly accelerating a robot's motors pulls a sharp spike of surge current
- This surge draws so much power from the battery that system voltage briefly dips below the microcontroller's minimum operating threshold
- Separating or isolating the logic power rail from the heavy motor supply prevents motor surges from resetting the robot's brain
- Digital logic pins communicate by measuring voltage relative to ground as a zero-volt baseline
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives Building Autonomous Mobile Robots the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
What happens if you plug a robot drive motor directly into a microcontroller pin?
Get it right to open this lesson and 9 more in the app.
How to learn Building Autonomous Mobile Robots, step by step
Go in order. 10 short levels across 2 sections, about 20 minutes in all, five minutes a day.
- 1
From Code to Physical Motion
- Driving Motors with Microcontrollers
- Power Systems and Circuit Reliability
- 2
Autonomy and Spatial Intelligence
- Coordinating Robot Software with ROS 2
- Mapping and Autonomous Navigation
2 sections · 4 units · 10 levels. Built to play, not to enroll.
Questions about Building Autonomous Mobile Robots
How do I learn Building Autonomous Mobile Robots?
Go in order: start with From Code to Physical Motion, then Autonomy and Spatial Intelligence. On Tomo that's 10 short levels, about 20 minutes in all, played five minutes a day. Start free and play the first level in under a minute.
Is there a Duolingo-style app for Building Autonomous Mobile Robots?
Yes. Tomo works like Duolingo: short daily lessons, streaks and quick quizzes. Building Autonomous Mobile Robots is one of its free courses, and you can type any other topic to get a course of your own.
Is the Building Autonomous Mobile Robots course free?
Yes. Building Autonomous Mobile Robots is playable on Tomo's free plan, which doesn't expire. No credit card, no waitlist. Download the app and start your first lesson.
How long does it take to learn Building Autonomous Mobile Robots?
10 levels across 2 sections, about 20 minutes of play in total. It's built for five minutes a day, so you finish it a little at a time instead of all at once.
Do I need any background to start Building Autonomous Mobile Robots?
No. It's pitched at a beginner level, so it starts where you are and builds up. If you can tap a phone, you can start.
Tomo is in ChatGPT
Tomo is also a ChatGPT plugin: the same playable courses, built and played inside your chat.
Add Tomo to ChatGPT- What to ask
- “Make me a Tomo course on black holes.” “Turn this chat into a Tomo course.”
- What you get
- Quick questions with instant feedback, hearts and stars, ready to play in about a minute.
- Where it goes
- No sign-up to start. Connect your Tomo account and your streak carries on in the app.
You pick the voice
Building Autonomous Mobile Robots is taught in the Bestie style: your friend who just gets it. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
More Technology on Tomo
Practical Circuit Design
Move beyond basic breadboard recipes to design reliable, real-world circuits. Learn to drive high-power loads, shape signals with op-amps, clean up noisy power rails, and debug circuits with confidence.
Everyday Microcontrollers and Robotics
Discover how tiny computer chips bring modern gadgets, appliances, and medical monitors to life. Learn to connect sensors, drive motors, and write clean control logic to turn electronic parts into working automated machines.
How Robots Work
Discover how machines sense the physical world, make real-time decisions, and move with precision. Learn the core principles behind autonomous navigation, mechanical manipulation, and feedback control.
How Robots See
Discover how intelligent machines transform flat camera feeds into real-world action. Learn how robots detect objects, measure depth, track targets, and map unfamiliar rooms using video.
Practical Electronics: From Circuits to Chips
Learn how electricity is harnessed, amplified, and programmed to power modern hardware. Explore real-world circuits from basic LEDs and transistors up to microcontrollers, op-amps, and commercial silicon chips.
Raspberry Pi and ESP Hardware
Learn how microcontrollers and single-board computers bring physical projects to life. Discover how to choose the right board, wire sensors, write firmware, and build reliable smart devices.
Start Building Autonomous Mobile Robots today.
Download Tomo, search Building Autonomous Mobile Robots, and play your first lesson in under a minute.