Depth Sensing
Using Light Detection and Ranging (LiDar) or Time of Flight (ToF) sensors.
TFMini - Micro LiDAR Module (Qwiic)
Single pixel, Resolution: 1cm, Maximum Reads Per Second: 100, Minimum Detected Object Size at 2m: 20mm, 45$
https://www.sparkfun.com/products/14786
Opne8008B
320x240, up to 10m, Distance & confidence data at max 120 FPS, 380$
https://www.seeedstudio.com/Opene8008B-QVGA-Time-of-Flight-Sensor-Evaluation-Kit-p-4424.html
Terabee 3Dcam 80x60
80x60 pixels, 250€ +VAT
https://www.terabee.com/shop/3d-tof-cameras/terabee-3dcam/
TeraRanger Evo 64px
8x8 pixels, 124€ + VAT
https://www.terabee.com/shop/3d-tof-cameras/teraranger-evo-64px/
Pieye Nimbus 3D
Resolution: 352 x 288, Measurement range: 0,1 m – 5 m, Imager: Infineon REAL3 IRS1125A, open source software, requires raspberry pi, 229€
https://shop.pieye.org/en/Cameras/Nimbus-3D-camera.html