Simple and Accurate LC Meter Circuit - 16F690

Digital LC Meter A LCR meter [Inductance (L), Capacitance (C), and Resistance (R)] is a piece of electronic test equipment used to measure the inductance, capacitance and, resistance of a component. Inductance is the property of an electrical circuit causing voltage to be generated proportional to the rate of change in current in a circuit. In Electronics, capacitance is the ability of a body to hold an electrical charge. Capacitance is also...

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MikroC Programming Guide

Microcontroller Programmer The purpose of this post is to provide basic information that one needs to know in order to be able to use microcontrollers successfully in practice. This post, therefore, doesn’t contain any super interesting program or device schematic with amazing solutions. Instead, the following examples are better proof that program writing is neither a privilege nor a talent issue, but the ability of simply putting puzzle pieces...

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Programmable Digital Seven Segment Timer Circuit - 16F628

Seven Segment Timer A timer is a specialized type of clock for measuring time intervals. By function, timers can be categorized to two main types. Those are Counts upwards and counts downward. Timers originally designed to fulfill a need in industry for a means of keeping time on certain devices. Originally, these timers were mechanical devices and used clockwork mechanisms as a means of keeping a regular time. The invention of two electromechanical...

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Digital LCD Speedometer and Odometer Circuit - 16F628

Speedometer In my previous post, I explained how to build a simple speedometer circuit using a micro-controller and seven segments. Read it from here. This is a further development of that circuit. This circuit indicates both speed and distance. A speedometer or a speed meter is an instrument that measures and displays the instantaneous speed of a vehicle. An odometer or odograph is an instrument that indicates distance traveled by a vehicle. Speedometer...

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Digital Seven Segment Speedometer Circuit - 16F628

Speedometer How Electronic Speedometers Work In Electronic speedometer, small magnets attached to the vehicle's rotating drive shaft sweep past tiny magnetic sensors (either reed switches or Hall-effect sensors) positioned nearby. Each time the magnets pass the sensors, they generate a brief pulse of electric current. An electronic circuit counts how quickly the pulses arrive and converts this into a speed, displayed electronically on the display....

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Simple LED Light Meter Circuit - LB1403

A light meter is a device having a light sensor at one end and a window at the other end which displays the reading that indicates the current light conditions. Light meters are often used in the fields of cinematography, photography and also in test cricket in order to determine the optimum light level for a scene. Using LB1403 IC and LDR, we can able to build a cheap light meter. LEDs are used to observe the current light conditions and variable...

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Simple Automatic Brightness Control Circuit

Automatic Brightness Control is the automatic adjustment of the exposure factors such as mA and V. ABC is used to keep the brightness of the display or bulb at a constant level. It involves the adjustment of the V and mA automatically depending on the part of the anatomy being examined. This can be achieved using a LDR, for instance, which monitors the ambient light and change its resistance this resistance changing use to adjust the V, the mA...

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