Project idea
Build a mobile robot that uses three stationary UWB anchors and one on-robot UWB tag to trilaterate its position and follow user-sent coordinates indoors with holonomic motion using mecanum wheels. The coordinate goals are sent from an Android app over Bluetooth, while an STM32 controller performs TWR/TDoA ranging, heading estimation via a magnetometer, and mecanum kinematic control to reach waypoints accurately.
Project description
Three UWB anchor nodes (each a DWM1000 with an ATmega328/Pro Mini) form a triangle grid; the robot carries a DWM1000 tag to measure ranges to anchors and compute its pose for navigation using IEEE 802.15.4a UWB at up to 6.8 Mbps with ≈10 cm ranging accuracy capabilities in RTLS modes. An STM32F103C8T6 “Blue Pill” drives four DC motors via L298N drivers for mecanum holonomic movement and consumes goal coordinates received via an HC‑05 Bluetooth link from an Android app for path execution. A 3‑axis magnetometer (HMC5883L/QMC5883L form factor) provides heading, while LM2596 buck modules and a 3S Li‑ion pack power logic and actuation for mobile operation.
Total components (names only)
STM32 Controller
Arduino Pro Mini
Atmega328 Controller
DWM1000 Module
Robot Chassis
Robot Wheels
Magnetometer Sensor
DC Motors
Motor Driver
Switch Buttons
Status LEDs
Battery
Regulatory Circuitry
PCB Board
Resistors
Capacitors
Transistors
Cables and Connectors
Grid Poles
Screws and Bolts
Features
UWB ranging with DWM1000 enabling two‑way ranging or TDoA for ≈10 cm indoor positioning with IEEE 802.15.4a PHY.
Three‑anchor grid for robust trilateration and absolute indoor coordinates in tag/anchor RTLS configurations.
Heading sensing via 3‑axis magnetometer breakout for stable yaw reference during holonomic motion.
Mecanum holonomic chassis for lateral and rotational maneuvers in tight indoor aisles and corridors.
Android control via HC‑05 SPP link for waypoint input with simple serial protocol and wide module availability.
Applications
Warehouse navigation and asset movement in GPS‑denied indoor environments with decimeter‑level accuracy.
Shopping centers, retail, and indoor service robotics requiring precise docking and aisle traversal using UWB.
Industrial intralogistics and research platforms for RTLS and multi‑sensor fusion experiments with UWB.
Project Includes:
Fully assembled and tested circuit
Circuit diagram
Source code
(For DIY KITs - only the components will be provided)
Project Types:
- DIY KIT(Do IT YourSelf KIT) - We are providing only components in this kit for this project
- DIY KIT with Code & Circuit Connections - Along with the components, you will get the Code and the Circuit Connections file to help you build the project easily.
- Readymade Soldered - We are providing fully assembled, tested and ready-made project soldered on a PCB with all the other components, code & circuit diagram.
Dimensions (cm)
Assembled robot approx. 34.8 × 25.0 × 16.2 cm based on a representative 97 mm mecanum chassis footprint and height envelope.
Shipping dimensions (cm)
Boxed set approx. 40 × 30 × 20 cm to accommodate chassis, poles, and anchors with protective packaging around wheels and electronics.
Weight
Reference holonomic chassis of similar class can be around 5kg assembled, depending on wheel size, frame, and motors.
Estimated project weight
3.5–5.0 kg depending on battery capacity, wheel diameter, and motor/driver selection typical of small mecanum platforms.
Notes: All the products are made by LearnElectronics India and not for re-sale.
UWB Indoor Path Planner Robot
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Order Processing Time:
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Technical Support:
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