A follow-me rover using UWB or BLE tracking, low-speed drive, front collision sensor and strict stop behavior when the target signal is lost.
A follow-me robot is not just a rover that drives toward a signal. The hard part is not hitting ankles, pets or furniture when the tracking signal jumps. The robot needs a desired following distance, low acceleration and an obstacle layer in front of the motors.
UWB anchors give much better distance estimates than Bluetooth RSSI. BLE can work for rough presence, but it is noisy indoors. Start with a walking-speed cart that stops confidently before adding speed or payload.
Measures distance to the person more reliably than BLE RSSI
Two gear motors, wide wheels and low center of gravity
Reads tracking data and drives motors
Stops before hitting feet and obstacles
Sized to the base motor stall current
Useful payload turns the demo into a cart
Wide base, basket payload and very conservative speed caps.
Add person detection only after UWB follow behavior is stable.
Use higher-torque motors and a physical bumper for private indoor spaces.
Treat the generated output as a prototype plan, not a certified product. Body-adjacent, high-voltage, optical-energy and mobility builds need qualified review before real-world use.
Only roughly. BLE signal strength is noisy; UWB is much better for distance.
Keep at least 80-120 cm for early prototypes so braking has room.
Stop immediately. Do not continue toward the last known position.
Build a follow-me grocery cart with UWB tracking, 12V hub motors and IR collision avoidance. Parts list and ESP32 firmware. Carries 30kg.
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