The process of generating high-quality AM signals economically is greatly simplified by the availability of low-cost specialty linear integrated circuits (LIC). This is especially true for low-power systems, where low-level modulation schemes are attractive. Linear Integrated Circuit Modulator using OTA As an example, the RCA CA3080 operational transconductance amplifier (OTA) can be used to provide AM with an absolute minimum of design considerations. The OTA is similar to conventional operational amplifiers inasmuch as they employ the usual differential input terminals, but its output is best described in terms of the…
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Water Flow Detection with Alert System using 555 IC
Sometimes we have to check the water supply pipeline from the municipal whether water is coming or not. Though the supply interval is fixed, the supply time may vary accordingly. It is quite possible to forget to switch on the motor, which results in no water in the reservoir. The article named, “Water Flow Detection with Alert System using 555 IC” is written to tackle such situations. In this article, you will learn to construct a simple water flow detector circuit. The circuit basically triggers the alarm when the water…
Read MoreInterfacing UV sensor with Arduino
In this article, we will learn to interface a UV sensor with Arduino nano. The term “UV” stands for ultraviolet and UV sensors are used to measure the power or intensity of incident ultraviolet (UV) radiation at a particular area. This form of electromagnetic radiation (UV radiation) has shorter wavelengths than visible radiation but is still longer than x-rays. Some theory on UV spectrum: The UV spectrum ranges from 100 nm to 400 nm and is divided into three bands. UVA (315-400 nm) – least harmful but stay away from…
Read MoreHow to Interface Nokia 5110 LCD with Arduino
In this article, we will learn to interface a compact and monochrome LCD display named Nokia 5110 with Arduino Nano. This article will also demonstrate how we can display alphanumeric characters, draw lines and other shapes and even display bitmap images after converting them into a data array via “Nokia 5110”. Introduction of Nokia 5110 LCD Display: Nokia 5110 is a low-powered, inexpensive, and easy-to-use LCD display module. This display features a low-powered CMOS LCD controller/driver called PCD8544. The PCD8544 is designed to drive a graphic array of 84×48 pixels…
Read MoreInterfacing GP2Y1010 Dust Sensor with Arduino
In this article, you will see how to interface GP2Y1010AU0F Dust Sensor with Arduino. GP2Y1010AU0F is an optical dust sensor that can detect very fine particles such as smoke, environmental dust, etc. It is designed for application in commercial air purifiers. However, it is also used in air conditioners and portable air quality monitoring systems. This sensor can detect dust particles up to the size of 0.5 µm. Features of Dust Sensor GP2Y1010AU0F Can easily differentiate smoke and house dust Consumes less current: 20mA max Sense dust particles in less…
Read MoreCalling Bell Circuit Diagram
In this article, we are satisfying the curiosity of electronics hobbyists, you and I alike by making a calling bell circuit diagram. The project can be set up in different rooms of an office or hospital and the attendant or office boy waiting place or nursing station. When a call is made from any of the rooms the attendant can be notified through the bell and he/she can verify the room from which the call is made by looking at the display showing the room number. Thus this project allows…
Read MoreMicro SD Card Module and Arduino Interface
The majority of Microcontroller Units (MCU) include a limited amount of storage space that is adequate to hold your code or software. The Arduino Mega (ATmega2560) has 8 KB of bootloader space, 256 KB of flash memory for code storage, 8 KB of SRAM, and 4 KB of EEPROM (which can be read and written with the EEPROM library). The issue now is what to do if you need to store data for applications like data loggers, data visualization, etc., but the microcontroller unit memory is too small to be…
Read MoreAutomatic Solder Smoke Extractor
Automatic Solder Smoke Extractor: Soldering is the process of joining electric/electronic components together. It is a very basic and most used process in the field of electronics because it is used to establish a secure connection between PCB and the components. Multiple types of solder wire are available at the market varying in dimensions and quality. Although there are multiple types of solder wires almost all of them are made from Lead and tin. Only the heated iron melts the wire so it is a must to let the iron…
Read MoreArduino Countdown Timer using P10 Display
In this article, we make an Arduino Countdown Timer using P10 Display. The counting is done by Arduino and then displayed in the P10 LED module. This project might come in handy for time-keeping purposes during physical games. The details about pin configuration, display specifications, and hardware interfacing between Arduino Nano and P10 are referenced from the “Interfacing P10 single color LED Display with Arduino Nano” article. In this article you will learn two things: How to display a countdown of 3 minutes in P10. How to include a Reset…
Read MoreInterfacing P10 LED Display with Arduino
The P10 LED display is a single color (red, blue, and yellow), high brightness, lower power consumption, and long lifetime display module designed for semi-outdoor use. One display module we are using contains 16×32 = 512 LEDs. In the tutorial “Interfacing P10 LED Display with Arduino“, you will learn: How to interface P10 Led display with Arduino How to select text font and size of the character How to display static character and running character. Introduction to P10 Display P10 display is a dot-matrix LED display. Dot-matrix Led means a…
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