An AVR/ARM based piezoelectric sensor for use in ultra-precise applications

Vibration-based, free-mounted z-probe sensor with micron accuracy for 3d printers

A Klipper Extension for the Probe Obj that allows the first probe sample to be discarded from the following command: PROBE,PROBE_ACCURACY,PROBE_CALIBRATE,QUAD_GANTRY_LEVEL,BED_MESH_CALIBRATE,SCREWS_TILT_CALCULATE,Z_TILT_ADJUST,PROBE_Z_ACCURACY, and CALIBRATE_Z

Klipper TTP223 Inductive Z-probe sensor

Arduino sketch and wiring diagram to set up a load cell + HX711 as a Z probe for a CNC machine