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and barometric pressure
and overcurrent protection
which detects high and low levels
It is important that the microcontroller share ground with the relay board along with other control signals else it will not able to control the relay
Adjustable Arms: Features adjustable arms with alligator clips that can hold small components
20K 3386P Trimpot(Pack of 5) Motor Wheels & Chassis and barometric pressure20K 3386P Trimpot Trimmer Potentiometer (Pack of 5) 20K 3386P Trimpot is a high accuracy variable resistor and PCB mountable with 3 terminal pins. A general purpose board mountable preset also called by other names like potentiometers, Trimpots, etc but is just a variable resistor. The voltage between the terminal varies as the trimpot is rotated. The Variable resistors are used for variating voltage as per the need in a circuit. The outer two pins
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