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Breadboard Basics In the 1960s, wire-wrap technique is used for designing, building, and testing the electronic circuits and prototypes. Then, the larger boards (like wooden boards used for bread slicing) were used onto which the components (huge electronics elements) were connected using wires, pins or thumbtacks. Hence, these are called as breadboards but, technical name […]
Piezo buzzer is an electronic device commonly used to produce sound. Light weight, simple construction and low price make it usable in various applications like car/truck reversing indicator, computers, call bells etc. Piezo buzzer is based on the inverse principle of piezo electricity discovered in 1880 by Jacques and Pierre Curie. It is the phenomena of […]
Introduction to Motor Driver: L293D is a typical Motor driver or Motor Driver IC which allows DC motor to drive on either direction. L293D is a 16-pin IC which can control a set of two DC motors simultaneously in any direction. It means that you can control two DC motor with a single L293D IC. […]
A relay is an electrically operated switch .Many relays use an electromagnet to mechanically operating a switch, but other operating principles are also used , such as solid state relays .Relays are used where it is necessary to control a circuit by a separate low-power signal , or where several circuits must be controlled by […]
Humidity is defined as the amount of water present in the surrounding air. This water content in the air is a key factor in the wellness of mankind. For example, we will feel comfortable even if the temperature is 00C with less humidity i.e. the air is dry. But if the temperature is 100C and […]
What is a DHT11 Sensor? DHT11 is a low-cost digital sensor for sensing temperature and humidity. This sensor can be easily interfaced with any micro-controller such as Arduino, Raspberry Pi etc… to measure humidity and temperature instantaneously. DHT11 humidity and temperature sensor is available as a sensor and as a module. The difference between this […]
Temperature is the most often-measured environmental quantity. This might be expected since most physical, electronic, chemical, mechanical, and biological systems are affected by temperature. Certain chemical reactions, biological processes, and even electronic circuits perform best within limited temperature ranges. Temperature is one of the most commonly measured variables and it is therefore not surprising that […]
What is a Flame Sensor? A Flame Sensor is a device that can be used to detect presence of a fire source or any other bright light sources. There are several ways to implement a Flame Sensor but the module used in this project is an Infrared Radiation Sensitive Sensor. A flame-sensor is one kind […]
Detection of light is a basic need for everything like plants, animals and even devices. Device researchers have worked on techniques for light detection and developed devices that offer excellent performance. Light is an electromagnetic radiation with a much shorter wavelength and higher frequency than radio waves. It is a quantum mechanical phenomena and comes […]
Infrared technology addresses a wide variety of wireless applications. The main areas are sensing and remote controls. In the electromagnetic spectrum, the infrared portion is divided into three regions: near infrared region, mid infrared region and far infrared region. The wavelengths of these regions and their applications are shown below. Near infrared region — 700 […]
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