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The on-board white LED is used to illuminate the object being measured and it can be controlled via the LED pin on the module
color saturation
input port
FSRs are sensors that allow you to detect physical pressure
LED indication for Power On / Charging / Full charge
A4988 Stepper Motor Driver (2A) water depth The on-board white LED isIntroduction : This breakout board for A4988 microstepping bipolar stepper motor driver features adjustable current limiting, over current and over temperature protection, and five different microstep resolutions (down to 1 16 step). It operates from 8 V to 35 V and can deliver up to approximately 1 A per phase without a heat sink or forced air flow (it is rated for 2 A per coil with sufficient additional cooling). This board ships with 0. 1 male