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 fountain with night light display Fountain with night light display are great for designs. Fountains have long been cherished as captivating displays of water’s graceful choreography, but when bathed in the electrifying glow of night disco lights, they transcend the ordinary and become a mesmerizing spectacle of dynamic artistry. As daylight fades and … 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 smoke detection system using MQ2 gas sensor A smoke detection system is a critical component of fire safety measures, designed to swiftly identify the presence of smoke or potentially harmful gases in an environment. One commonly used sensor for this purpose is the MQ2 gas sensor. This sophisticated sensor utilizes a combination of … Read more
Introduction to simple AC to DC charger In electronics projects, a charger is important as it is used to charge up rechargeable batteries. The processes involved in developing a charger include converting AC voltage to DC voltage. The process is pretty straightforward. How to construct a simple charger To construct a simple 9V charger, the … 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
