Wednesday, October 27, 2021
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Most table lamps available in the market do not provide sufficient light to read small-size letters and fonts, especially those found on electronic components. This 20-watt chip-on board (COB) LED table lamp gives sufficient light of about 270 lumens...
Bluetooth-based spying devices can help you eavesdrop on someone, just like in James Bond movies. But Bluetooth and also WiFi have a very low range. Wouldn’t it be cool if you can secretly hear a person or organisation’s criminal...
In these times of Covid-19, thermal screening has become essential for checking one’s body temperature before allowing entry to premises like an office. However, it is a tiring process as it involves measuring body temperature of all the people,...
In this project, ESP-12E WeMos D1 Wi-Fi Uno based ESP8266 shield for Arduino-compatible board and Ubidots website platform are used for sending email or SMS alerts for temperature and humidity monitoring applications. The WeMos D1 uploads the temperature data...
Remote wireless display of sensor data is required in many industrial and consumer applications. Sensor data like light, temperature, accelerometer and strain gauge data, etc can be communicated through Wi-Fi and displayed on a mobile phone, laptop, or desktop...
Hunting continues to make many animal species extinct, and the governments are unable to do much except introducing some laws and conducting regular surveys. But conducting a survey is not an easy task, especially without the help of technology. The...
Handheld devices play an essential role in the healthcare industry. With the sensors becoming smaller and compact, making a handheld device is also becoming easier and affordable. Heart rate measurement systems, or HR machines, are now available almost everywhere,...
Presented here is an LED-based 2D matrix display clock. There are a number of technologies used to create various displays in use today. The basic display systems we know are segment displays, 2D displays, 3D displays, and also mechanical...
This mono AF amplifier uses a single 5-pin LA4425A IC to deliver 5-watt output through a 4-ohm, 5-watt loudspeaker. The datasheet of LA4425A recommends a 13.2V power supply to get 5-watt output. A suitable heat-sink may be used for...
This project will enable remote control of two electrical appliances. It makes use of a TV or DVD remote that uses modulated infrared (IR) pulse train operating at 38kHz frequency. A good thing about this project is that it does...