In this post I have explained a simple method of automatically switching ON an inverter fan whenever the unit is operating in the charging mode or inverter mode, in order to ensure optimum cooling of the internal power devices. The idea was requested by Mr. Sudip Bepary. Circuit Objectives and Requirements I have just bought […]
Automatic
Ultrasonic Smart Automatic ON/OFF Switch Circuit
In this article we are going to build a smart automatic ON/OFF switch using Arduino, which can turn on or off gadgets automatically by sensing the presence of human nearby through the concept of ultrasonic. We are going to use ultrasonic module and Arduino to sense the presence of human which activates the gadgets such […]
Automatic Voltage Regulator (AVR) Circuit
An automatic voltage regulator circuit is quite well used where Voltage supply is only 120VAC. Many gadgets can operate good at 220V Ac that is why Voltage regulation is needed. By: Mehran Manzoor For this matter an appropriate voltage Regulator circuit is designed which can operate up to capacity of 1KW and gives Variable voltage […]
Automatic Evaporative Air Cooler Circuit
In this post we study a simple moisture sensor circuit which enables an evaporative air cooler to automatically restore the wetness level of its evaporative pad by detecting its moisture level and by activating the water pump accordingly. The idea was requested by Mr. Ankur shrivastava Technical Specifications sir could you please help me to […]
Making an Automatic Stopwatch for Runners, Athletes and Sportpersons
In this post I will show how to construct a stopwatch which automatically starts timer when the runner begins to run and the timer stops when the runner reaches the end. The elapsed time between starting and ending point is displayed on a 16 x 2 LCD. First let’s begin by learning how to configure […]
Make this Geyser Water Heater Timer Circuit with Automatic Switch OFF
In this post we study a simple water heater timer controller circuit which can be used in bathrooms for automatically switching OFF a geyser or a water heater unit after a predetermined time period as preferred by the user. The idea was requested by Mr. Andreas Technical Specifications Many of us when we need hot […]