Source: https://mokxi.com/learn/robotics Updated: 2026-11-11 All courses Robotics track # Robotics, from your first motor to a robot that balances Motors, servos, sensors and PID control loops, then a rover, a claw machine and a balance bot, every lesson checked on a simulated board. Free 15 courses, 107 lessons, about 82 hours 4 levels Start at the first rung Embedded on the Arduino Uno The track ## Zero to expert, one course at a time A robot is three things in a loop: sense, decide and act. This track builds each part on its own first, the sensors, the motors and the code in between, and then puts them together, so you know why your robot does what it does. It starts on an Arduino Uno with no experience needed, then climbs through DC motors, servos and steppers, sensors and power, feedback control with PID, PLCs and real machines, and ends in a robot or machine you design yourself. The ladder ## Every course, by level Take them in order, or start on the rung that matches what you already know. Each course page lists every lesson. Level 1 ### Start from zero A board, a few pins and parts that react. 16 lessons · 12 h · Arduino Uno R3 ### Embedded on the Arduino Uno One board, twenty pins and a C++ sketch. From a lamp you switch to a game you can play. Open the course 9 lessons · 8 h · Arduino Uno R3 ### Interactive devices on the Uno Read people and sensors without blocking, control an output, then finish with two playable builds. Open the course Level 2 ### Make it move Motors, servos, sensors and the power to run them. 7 lessons · 4 h · Arduino Uno R3 ### Motors and motion DC motors on a driver, the H bridge inside it, servos, a stepper on an A4988, an encoder that measures what the motor did, and a 2WD robot car with ultrasonic eyes and line sensors. Open the course 7 lessons · 6 h · Arduino Uno R3 ### Servos, solenoids and actuators Everything that moves a thing to a place: servo pulses measured and calibrated, big servos and their supply, easing curves, solenoids with a flyback diode, linear actuators, vibration motors, and an animatronic face on a PCA9685. Open the course 7 lessons · 4 h · Arduino Uno R3 ### Sensors and measurement Intermediate: thermistors and RTDs, strain gauges in a Wheatstone bridge, light and IR, current on a shunt and an INA219, ADC resolution and noise, and calibration, finished with a power instrument you check against Ohm's law. Open the course 7 lessons · 3 h ### Power and batteries Where the volts come from and how to keep them: Ohm's law on a real meter, cells in series and parallel, a regulator, a LiPo on a TP4056, a boost converter, a battery gauge, and a power bank you build yourself. Open the course 7 lessons · 4 h ### Relays, contactors and motor control Intermediate, the electrician's course: relay coils and flyback diodes, latching start/stop circuits, interlocks, three-way switching, timers and ladder logic, all at low voltage, finished with a start/stop station and an emergency stop you wire yourself. Open the course Level 3 ### Close the loop Feedback control and machines that move on their own. 7 lessons · 7 h · Arduino Uno R3 ### Control systems: PID Feedback control on real physics: open and closed loops, P, I and D one at a time, tuning by the numbers, encoders, a balancing robot, and a motor that holds its speed whatever you throw at it. Open the course 4 lessons · 4 h · Arduino Uno R3 ### 3D printer and CNC basics Learn what a printer’s firmware does underneath: homing, temperature control with safety, G-code motion and runout detection. Open the course 8 lessons · 7 h · Arduino Uno R3 ### PLCs and ladder logic How factory machines think: the scan cycle, contacts and coils, seal-in circuits, timers, counters and sequencers, ending on a crossing controller you design rung by rung. Open the course 6 lessons · 4 h · ESP32-C3-DevKitM-1 ### Build a desk buddy robot Animated eyes on a round display that blink, feel, react to touch, tilt and light, ending with a robot that misses you. Open the course 4 lessons · 4 h · Arduino Uno R3 ### Mars rover Drive by counting wheel slots, see hazards, do the science, then send your rover on a full mission. Open the course 8 lessons · 6 h · Arduino Uno R3 ### Build a claw machine Build a real arcade claw machine piece by piece, from one stepper motor to coins, a clock, a win sensor, lights and sound. Open the course Level 4 ### Expert A robot that balances, and a machine of your own. 3 lessons · 2 h · Arduino Uno R3 ### Build a balance bot Three lessons on a two-wheel self-balancing robot: read its tilt, see what the wheels do to it, and write the PID that stands it up. Open the course 7 lessons · 7 h ### Robotics capstone: your own machine Pick a mobile robot or an arm and build it through seven milestones: a brief, sensors, closed-loop motion, control, safety, testing, and a demo and write-up for your portfolio. Open the course Outcomes ## What you will be able to do - Drive DC motors, servos and steppers from a driver, and measure motion with an encoder. - Read distance, line and tilt sensors, and filter what they say. - Tune a PID loop until a motor, an arm or a two-wheel robot holds where you want it. - Plan, build and test a machine of your own, with the wiring, code and limits written down. Careers ## Where this track leads The jobs these skills are used in every day, with what each one does and how to get there. Career ### Robotics and automation technician Build, wire, program and fix the robots and machines in real factories. See the career Career ### Embedded firmware engineer Write the code that runs inside cars, drones, watches and every smart gadget. See the career Career ### Electronics technician Test, repair and build circuit boards and the gear they live in. See the career Topics ## Looking for something specific? Each of these starts you on the right course and lesson for one subject. Robotics ### A robotics course: motors and sensors to robots that decide Drive motors, read distance and line sensors, build a car that avoids walls, then a balance bot and a Mars rover, all on simulated boards. Start here Motor control ### A motor control course: DC, servo, stepper and encoder Speed and direction on a driver, the H bridge inside it, angles on a servo, STEP and DIR on an A4988, and an encoder that measures what really happened. Start here PID control ### Learn PID control by standing up a balance bot Read tilt from an IMU, see what the wheels do to it, then write and tune the PID loop that keeps a two-wheel robot upright. Start here Sensors ### An Arduino sensors course: read the real world Buttons and pull-ups, analog voltages and a light sensor, then I2C sensors sharing a bus and a weather station on three buses. Start here Learn Arduino ### Learn Arduino online, free, on a simulated Uno Real C++ on a modeled ATmega328P, checked step by step. No board to buy, nothing to install, and the same code runs on a real Uno later. Start here Questions ## About the robotics track Can I learn robotics without a robot kit? Yes. The motors, sensors and robots run in the simulator with their physics, and the same wiring and code work on real parts when you want to build one. What should I know before the robotics track? Nothing. It starts with Embedded on the Arduino Uno, which covers pins, timing and analog readings, everything the motor and sensor courses build on. What is PID control, and do I need it? PID is the loop that measures where something is, compares it with where it should be and corrects. It is how a robot holds a speed, an angle or its balance, and the track teaches it on a motor before a balance bot. What jobs does robotics lead to? Robotics and automation technicians build, wire, program and fix the machines in factories and warehouses. The same skills lead into embedded firmware and electronics work. Tracks ## The other tracks 7 courses, 56 lessons, about 41 hours ### Coding track Python and C++ from your first print to classes, tests and state machines. Every program runs on a simulated board, so a bug is something you can see. See the track 16 courses, 126 lessons, about 97 hours ### Embedded track Arduino, ESP32, Raspberry Pi Pico and STM32: pins, timing, buses, motors, WiFi, registers and debugging, every lesson checked on a simulated board. See the track 11 courses, 102 lessons, about 60 hours ### Electrical track Current and voltage you can see, then transistors, op-amps, filters, power and PCBs. Every circuit runs in a real circuit simulator in your browser. See the track 21 courses, 141 lessons, about 98 hours ### Maker track Follow the starter kit you already own, then build a claw machine, a balance bot, a handheld console or an LED cube, each a short course checked by the simulator. See the track