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 […]
Arduino Tachometer Circuit for Precise Readings
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 […]
Wireless Servo Motor Control Using 2.4 GHz communication link
In this post we are going to construct a wireless servo motor circuit which can control 6 servo motors wirelessly on 2.4 GHz communication link. Introduction The project is divided […]
Transformerless AC Voltmeter Circuit Using Arduino
In this article we learn how to make a transformerless AC voltmeter using Arduino. Making an analog voltmeter is not an easy task as to build one you must have […]
LCD 220V Mains Timer Circuit – Plug and Play Timer
In this post we are going to make an LCD 220 V mains operated timer using Arduino whose countdown time can be witnessed via 16 x 2 LCD display. Introduction […]
GSM Car Ignition and Central Lock Circuit Using Arduino
In this post we are going to construct a GSM based car security system using Arduino, which can lock and unlock car’s ignition system and central lock by sending a […]