Home » You searched for “meter”

Alcohol Detector Meter Circuit using MQ-3 Sensor Module

MQ-3 sensor LM393 comparator circuit

The simple alcohol detector circuit discussed here will accurately sense the emanation of alcohol gas from a selected source, such as from the mouth of a drunkard, when used as a breathalyzer. It’s cheap and a useful device which can be used by all authorized personnel such as a cops or traffic police for nabbing drunken … Read moreAlcohol Detector Meter Circuit using MQ-3 Sensor Module

Simple Digital Water Flow Meter Circuit using Arduino

In this post we are going to construct a digital water flow meter using Arduino and 16 x 2 LCD display. We will be taking a look at YF-S201 water flow sensor, its construction and working and how to interface with Arduino to extract some useful readings. The proposed project can measure the rate of … Read moreSimple Digital Water Flow Meter Circuit using Arduino

Make this Advanced Digital Ammeter using Arduino

In this post we are going to construct a digital ammeter using 16 x 2 LCD display and Arduino. We will understand the methodology of measuring current using a shunt resistor and implement a design based on Arduino. The proposed digital ammeter can measure current ranging from 0 to 2 Ampere (absolute maximum) with reasonable … Read moreMake this Advanced Digital Ammeter using Arduino

Using Digital Potentiometer MCP41xx With Arduino

In this project we are going to interface a digital potentiometer with arduino. In this demonstration potentiometer MCP41010 is used but you can use any digital potentiometer of MC41** series. By Ankit Negi INTRODUCTION TO MC41010 Digital potentiometers are just like any analog potentiometer with three terminals with only one difference. Whereas in analog one … Read moreUsing Digital Potentiometer MCP41xx With Arduino

Digital Capacitance Meter Circuit Using Arduino

In this post we are going to construct a digital capacitance meter circuit using Arduino which can measure capacitance of capacitors ranging from 1 microfarad to 4000 microfarad with reasonable accuracy. Introduction We measure value of the capacitors when the values written on the capacitor’s body is not legible, or to find the value of … Read moreDigital Capacitance Meter Circuit Using Arduino

Arduino Tachometer Circuit for Precise Readings

Disc Neodymium Magnet

A tachometer is a device that measures the RPM or angular velocity of a rotating body. It differs from speedometer and odometer as these devices deal with linear or tangential velocity of the body while tachometer a.k.a. “tach” deals with more fundamental the RPM. By Ankit Negi Tachometer is composed of a counter and a … Read moreArduino Tachometer Circuit for Precise Readings

Do NOT follow this link or you will be banned from the site!