The MaxBotix high resolution, low voltage MB1003 HRLV-MaxSonar-EZ0 is an excellent low cost choice for use where high sensitivity, wide beam, or people detection is desired.
The MaxBotix low voltage MB1010 LV-MaxSonar-EZ1 offers very short to long-range detection and ranging, in an incredibly small package with ultra low power consumption. The MaxSonar-EZ1 detects objects from 0" to 254".
TFMINI Micro LiDAR Module indoor/outdoor measures 100 times per second within 12 meters.
This is a direct drive 4WD robot kit that uses Nexus mecanum wheels. The mecanum wheels allow it to vector in any direction.