Simple FM Transmitter Circuit

In telecommunication, frequency modulation (FM) transfers information by varying the frequency of the carrier wave according to the message signal. This is a low-power transmitter and it uses FM waves for transmitting the sound, this transmitter … Read more

Simple FM Transmitter Circuit

Touch Alarm using IC 555

A touch sensor in electronics is used to detect and record physical touch. Also known as tactile sensors, it’s a small, simple, low-cost sensor made to replace old mechanical switches we have seen in the … Read more

Touch Alarm using IC 555

9V Regulated Power Supply Circuit

You should always make sure to use an appropriate current limit when powering sensitive components. A regulated power supply converts unregulated AC to a constant DC. It is used to ensure that the output remains … Read more

9V Regulated Power Supply Circuit

AC Power Motor Speed Control

Alternating current (AC) motors are among the most widely used electric motors in several industries today. As its name implies, an AC motor converts electrical energy into mechanical energy. These motors offer several advantages over direct … Read more

AC Power Motor Speed Control Circuit

Interfacing Rotary Encoder with Arduino

A rotary encoder is also called a shaft encoder. It is an electro-mechanical device, that converts the angular position or motion of a shaft or axle to an analog or digital output signal. There are two main types of rotary encoders: absolute … Read more

Interfacing Rotary Encoder with Arduino

Sound Detector Arduino

We live in a World of virtual assistants with voice interactions, this makes our various tasks much easier. For this purpose different sound sensors are used, which are sensitive to sounds like loud voices, claps, … Read more

Sound Detector Arduino

Arduino Capacitance Meter

A Capacitor is an electrical device that stores electric charge and the ability of the capacitor to store the electric charge is known as its Capacitance. Figuring out the values of different capacitors in the circuits can be … Read more

Arduino Capacitance Meter

Arduino RDA5807M FM Receiver

Long ago we were all depending on local FM radios, to get the latest news and songs. Slowly these radios are losing popularity. But in emergencies when the internet is down, radios place an important … Read more

Arduino RDA5807M FM Receiver

Tilt Switch Arduino Schematics

Tilt switches are commonly used to detect motion or orientation. They are used to detect slope or inclination relative to gravity and are set to trigger outputs at limits outside a safe operating zone. It … Read more

Tilt Switch Arduino Schematics