Use ToF for simple distance checks, 2D LiDAR for mapping and depth cameras for richer indoor perception.
We may earn a commission from purchases through these links, at no extra cost to you.
ToF sensors are cheap, small and good for simple obstacle detection. A 2D LiDAR is better when the robot needs a map or repeatable navigation around a room.
Do not buy LiDAR before defining the behavior. Many robots only need front distance, cliff sensing or dock alignment, which can be solved with cheaper sensors.
Pulling current matching products on AliExpress…
Use two or three ToF sensors.
Use 2D LiDAR plus wheel encoders.
Both use light timing concepts, but hobby ToF modules are point sensors while 2D LiDAR scans a plane.
For mapping with LiDAR, ROS can help. For simple avoidance, no.
Start with ToF. Upgrade when navigation needs a map.
Start with this prompt prefilled, then let RoboHub generate the live parts list, wiring plan, CAD and firmware.