Motion sensor module PIR (Adjustable Range) Incremental this shift register is a

this shift register is a device that allows additional inputs or outputs to be added to a microcontroller by converting data between parallel and serial formats

according to the label indicates the direction of the gravitational force exerted particular attention must not directly push the white plastic cover part of the sensor inorder to avoid damage

it detects knocks

TDS (Total dissolved solids)

Motion sensor module PIR (Adjustable Range) Incremental this shift register is aIntroduction : Sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of thesensors range. They are small, inexpensive, low power, easy to use and don't wear out. For that reason they arecommonly found in appliances and gadgets used in homes or businesses. They are often referred to as PIR, "PassiveInfrared", "Pyroelectric", or "IR motion" sensors. Everything emits some low level radiation, and the hotter