Imagine a world where buttons vanish, and your touch alone activates devices. Picture a light switch that responds to your fingertips, a doorbell that senses your approach, or a sleek control panel that requires no physical buttons. Welcome to the realm of TTP223 Capacitive Touch Sensor, where magic meets technology. In this blog post, we’ll … Read more
The TDA2822 is a versatile and widely-used integrated circuit known for its role as a dual audio power amplifier. It’s designed to function in portable audio devices like cassette players, radios, and CD players due to its low voltage operation and power efficiency. This IC stands out for its ability to operate on a supply … Read more
Introduction to ESP8266 (Nodemcu) The ESP8266 is a compact Wi-Fi module that has gained popularity for its versatility in Internet of Things (IoT) applications. It integrates a powerful 32-bit microcontroller and a Wi-Fi transceiver into a small footprint, making it ideal for space-constrained projects. With its ability to run at 80 MHz or 160 MHz, … Read more
Introduction to ESP-01 ESP-01 is a Wi-Fi module that enables wireless communication and internet access for microcontroller projects. It is based on the ESP8266 chip, which has a 32-bit processor, a TCP/IP stack, and a Wi-Fi transceiver. It can operate in three modes: as an access point, as a station, or as both. It can … Read more
Introduction to Ethernet Shield(W5100) Ethernet shield w5100 is a device that allows an Arduino board to connect to the internet and perform various network tasks. It is based on the Wiznet W5100 chip, which provides a TCP/IP stack and supports up to four simultaneous socket connections. The shield can be easily mounted on top of … Read more
Introduction to Blynk IOT Blynk is a low-code IoT software platform for businesses and developers. It allows users to create mobile and web applications for their IoT devices without any coding required. It supports over 400 hardware modules, such as ESP32, Arduino, Raspberry Pi, and more. Users can connect their devices to the secure Blynk … Read more
Introduction to PIR sensors PIR sensors consist of a pyroelectric sensor, which is a material that generates an electric charge when exposed to heat. The sensor has two slots that are sensitive to infrared radiation. A Fresnel lens or a mirror is used to focus the infrared radiation onto the slots. When the sensor is … Read more
Introduction to Decade Counter CD 4017 CD 4017 decade counter is an IC that can count from 0 to 9 in binary code. It has 10 output pins, each corresponding to a digit from 0 to 9. The output pins change state sequentially as the counter receives clock pulses from an external source. A decade … Read more
Introduction to MQ2 gas sensors MQ2 gas sensors are compact and versatile electronic devices designed to detect various types of gases in the surrounding environment. These sensors belong to the MQ series, which is a line of gas sensors widely used for applications in safety, industrial processes, and environmental monitoring. MQ2 gas sensors, in particular, … Read more
Introduction to infrared(IR) receivers and remote Most advanced systems depend on wireless communication via Infrared(IR) receivers and remote, and Arduino is one of the most common platforms for innovators to explore wireless systems. Infrared(IR) receivers and remotes serve as a gateway to seamless wireless control and interaction. These components offer a user-friendly approach to designing … Read more
Introduction to soil moisture sensors Soil moisture sensors are innovative devices designed to measure the amount of moisture present in the soil. They play a crucial role in modern agriculture, environmental monitoring, and landscaping by providing valuable data to optimize irrigation practices, enhance crop yields, and conserve water resources. These sensors employ various technologies to … Read more
Introduction to liquid crystal display Liquid Crystal Displays (LCDs) are used to enhance electronic projects by providing a visual interface for data presentation and interaction. They allow users to display information, messages, and sensor readings in a user-friendly format. When integrated into Arduino projects, Liquid crystal displays (LCD) help in the visualization of real-time data … Read more
Introduction to ultrasonic sensors Ultrasonic sensors are electronic devices that utilize sound waves to detect and measure distances or objects. These sensors work on the principle of emitting ultrasonic waves and measuring the time it takes for these waves to bounce back after hitting an object. The sound is inaudible to human hearing. The time … Read more
Introduction to servo motors Servo motors are electromechanical devices that are used to achieve precise control over the position, speed, and acceleration of a mechanical system. The control mechanism used by the motor is the pulse width modulation. They are commonly used in robotics, manufacturing machinery, automation equipment, and other sectors and applications that demand … Read more
Introduction to arduino IDE software Arduino IDE software is an IDE that is used as a coding environment for an arduino board. In a previous post, we focused more on the physical component and how to use the board in a circuit. The arduino IDE software serves as a development environment where all the code … Read more
Introduction to Arduino Arduino is one of the most popular microcontroller ICs for electronic projects. It is an open-source, programmable electronic component. It is made of a physical hardware that can be programmed and a software referred to as Arduino software (which is an IDE) that is installed on a computer to program the physical … Read more
Introduction to the operational modes of a 555 timer A 555 timer is one of the most used integrated circuits for most electronic projects. We would discuss in detail all the operational modes of a 555 timer. It functions in different circuits as either a switch, a flip-flop, or an oscillator. A 555 timer can … Read more
Introduction to diodes We would focus on how diodes work and what role they play in circuit design. Diodes are electronic components that allow current to flow in one direction but not the other. Most common diodes have two leads. Some are clear with reddish-orange on the inside and a black stripe on one end … Read more
Introduction to transistors Transistors are active electronic components that can be used for amplification or switching circuits. We would look in detail at how transistors work. We would be focused on BJTs The basic type of transistor is the bipolar junction transistor. Bipolar junction transistors (BJT) Bipolar junction transistor is similar to diodes. Diodes have … Read more
Introduction to operational amplifiers An operational amplifier also referred to as an op amp is a high gain DC voltage amplifier, meaning it can use a very small voltage difference between its input to control a much larger voltage at its output usually 100 thousands of times larger. operational amplifiers come in different package types … Read more