Pololu 302 Elenco 21-881 Sound Reversing Car SC8LUU Linear Bearing Bushing for 8mm Shafts CNC Router Mill Linear Stage The SPIKY smartwatch uses PPG

The SPIKY smartwatch uses PPG (photoplethysmography) sensor technology with green LED wavelength optimized for wrist-based measurement

LED/Display Control - Selecting individual LEDs or display segments

4GHz or 5GHz bands

and experimental work

219R61C226ME15L – MURATA – MLCC SMD Capacitor – 22 uF

Pololu 302 Elenco 21-881 Sound Reversing Car SC8LUU Linear Bearing Bushing for 8mm Shafts CNC Router Mill Linear Stage The SPIKY smartwatch uses PPGPololu 302 Elenco 21 881 Sound Reversing Car The Pololu 302 Elenco 21 881 Sound Reversing Car is an educational robotics kit that combines mechanical assembly with sound activated reverse functionality, designed to teach fundamental principles of motor control, sensor integration, and autonomous behavior. Electronics educators, STEM instructors, and hobbyists use this kit to demonstrate practical applications of sound detection circuits and