Tag: electronics project
This controller circuit based on an infrared (IR) object sensor (Sharp 2Y0A21) is used for saving power of the mirror light near a washbasin. The circuit contains manual on and off switches and an additional automatic switching system.
Circuit and...
According to the World Health Organization (WHO) guidelines, people need to wash their hands with soap and water at least for 20 seconds to get rid of any virus. Although you have a stopwatch on phones, wristwatches, and other...
Corona Virus or COVID-19 has shaken the entire world. As per www.worldometers.info more than 121 countries have been affected by the virus. The death toll keeps on rising in many countries whereas in some they are going down gradually....
Board powered by Arm Cortex M7 that enables you to learn the Swift programming language and simultaneously develop innovative projects
Swift has been a general-purpose programming language that uses a fast approach to ensure safety, performance and develop well-built...
This simple GSM security switch project is based on Arduino Nano microcontroller (MCU) and SIM800L GSM modem (Fig. 1).
The cellular-based alert system is configured to send an SMS in response to a security switch action. When the security sensor...
This project presents a K-type thermocouple-based temperature measurement system using MSP430G2553 microcontroller (MCU). The MCU reads sensor data and updates it on a four-digit, seven-segment display, and also sends it to a smartphone through Bluetooth module. The author’s prototype...
This project is based on Arduino Uno and Processing software for monitoring temperature and sending voice alerts. Processing is an open source IDE that can be used to visualise data and implement other functionalities.
Circuit and working
The circuit is built...
Here is a simple audio amplifier circuit based on TDA2050 IC. This amplifier can deliver an output power of around 15W for an 8-ohm load, 18W speaker with 18V DC power supply.
Circuit and working
The circuit diagram of the TDA2050-based...
Smart presentation pointers are readily available in the market but are expensive. Here is a simple, easy-to-build, inexpensive and infrared (IR)-based smart slide pointer using Arduino Leonardo.
Slide presentations using PowerPoint can be frustrating because you may need to click...
The circuit presented here can measure voltage (V), current (A) and wattage (W) on an OLED. It is actually voltmeter, ammeter and wattmeter circuits combined in one unit. It is a useful tool for testing circuits, desktop power supplies,...
