Okewu Emmanuel 
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 automatic security light system An automatic security light system turns on when it senses darkness without anybody having to switch it on. In most houses, we use a manual security light system which has to be turned on manually. The major drawback of this system is that when no one is around to … Read more
Introduction to rain detector alarm system A rain detector alarm system is a simple device that alerts households when it senses rainfall. In areas where rainfalls are common or during rainy seasons, it’s important that we get informed about rainfall on time so we make necessary arrangements before the rain starts falling heavily. The device … Read more
Introduction of battery charge controller Since the innovation of secondary cells, the Recharging of batteries has been made possible by passing direct current through them. However, challenges have risen on how to know when the battery is fully charged and to cut off charging automatically if the battery is fully charged since overcharging damages battery … Read more
