Thursday, August 11, 2022
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Presented here is a loop-based anti-theft alarm circuit using a simple wire loop as sensor. It can be used to protect any device against theft, or as a door opening alarm. Make sure that when the device moves, or...
Described here is an easy-to-use circuit of an automatic infrared (IR) faucet controller suitable for hand hygiene and water conservation at homes, hospitals and offices. With this compact controller you can turn on and off a faucet automatically, preventing...
Presented here is an obstacle-avoidance robot without microcontroller (MCU). The obstacle-avoidance feature is commonly found in autonomous cars and robots. Most obstacle-avoidance robots are costly and difficult to build because of MCUs. This project is simple and does not...
Android smartphones are rapidly becoming popular in the education industry. Some can even be used as signal or function generators. Bulky signal generators available in the market are costly and complex to operate. Android smartphones can be used as signal...
This project is used to control the movement of the spray head and nozzle in a thin metal or insulation film deposition system. Here, AT89C51 or P89V51RD2 microcontroller (MCU) is used to control the spray head and nozzle in...
This Automatic Fan Controller circuit is based on a thermistor and an operational amplifier (op-amp) that drives a MOSFET to switch a cooling fan on and off in an active heatsink system. The design also includes an overload protection...
This project is based on the Android app and Arduino Uno using Bluetooth as the wireless communication medium. It is a simple and flexible home automation system with only a few electronic components, without complex soldering. This project is...
Panel meters in regulated power supplies are used to display electrical parameters like voltage and current. Presented here is a DC Panel Meter circuit to display DC voltage and current of power supplies, including DIY-type ones. Circuit and working Circuit diagram...
This article covers the designing of an FM receiver using GNU Radio software and RTL-SDR hardware on Ubuntu operating system (OS). With advancements in software-defined radio (SDR), more supports are available for SDR hardware to be used with computers....
This project presents the implementation of a MATLAB graphical user interface (GUI)-based approach to wirelessly control the movement of a robotic car. Commands to move the car in forward, reverse, right and left directions are sent from the GUI,...
 
 

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