2_0

Arduino Based Voltmeter
The voltage ‘V2’ is a fraction of the actual applied voltage ‘V’. The applied voltage ‘V’ can be calculated from the fraction of applied voltage ‘V2’ with the help of the following equation. DC voltage, Vdc = V2 * (1 + (R1 / R2)) AC voltage as input: When we are applying an AC voltage we use a rectifier diode in series with the Voltage divider circuit to prevent the negative cycles from entering the circuitry. No need for step down transformers because we are already getting a voltage ‘V2’ in the range of 0 to 5 V only, across R2.
Testing of Hardness

Testing of Hardness

Testing of Hardness It is a very important property of the metals and has a wide variety of meanings. It embraces many different properties such as...
SAND TESTING

SAND TESTING

Electrical Properties

Electrical Properties

Arduino Mega 2560

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