Posts by Afzal Rehmani

A simple heat-activated fire alarm built with a 10k NTC thermistor, a 1k preset and a single BC547 transistor. Includes the full s…

In the realm of affordable and versatile computing, the Raspberry Pi stands as a game-changing innovation. Launched in 2012 by the…

Toggle switches are essential components in various electrical applications, from simple household gadgets to complex industrial m…

Overview In today's technology-driven world, the demand for reliable, long-lasting power sources is higher than ever. Among the va…

Overview The LR1130 battery, also known by designations such as AG10, 189, LR54, and L1131, is a widely utilized coin cell battery…

Overview The L512F Sensata-Crydom Thyristor Bridge Rectifier Module represents a significant advancement in power electronics, des…

Introduction The article explores the integration of the ESP32 microcontroller with the Stepper Motor 28BYJ-48 and the ULN2003 Mot…

Introduction Pulse sensors are used in several projects for athletes, gaming, home appliances, and mobile phone developers where t…

Introduction The ESP8266 WiFi module has revolutionized the world of IoT (Internet of Things) by providing an affordable and versa…

The ESP32 Cam is a compact and powerful development board that combines an ESP32 chip with a camera module, making it ideal for va…

Introduction: In today's technology-driven world, having a reliable power source is crucial to keep our devices charged and ready…

Introduction 18650 batteries are popular and versatile power sources used in a wide range of devices, including flashlights, lapto…