Learn to build an RFID based attendance system using Arduino with step-by-step instructions, circuit diagrams, and complete code. This $35 DIY project replaces expensive commercial systems with ...

All the fibres along the tomato stem will become roots, which is why the plant should be buried deep. In the comments, people vouched for her hack. "I did this last year. The ones with eggs grew ...

5 ways to overcome feeling tired in the heat These simple strategies can help you fight off fatigue and enjoy the warmer weather. 1. Stay hydrated According to the National Library of Medicine, up ...

The noise margin (NM) of an inverter is an important feature for the operation stability of the digital circuits. Owing to their simple structure, easy processes, and relatively high gain, the ...

Small computer board platforms, such as Arduino, Raspberry Pi, and micro: bit are very common, cheap, and useful tools to teach modern technology, coding, and experimenting in different disciplines at ...

Fans use a lot less energy than air conditioning. Using ceiling fans compared to air conditioners can reduce energy use and greenhouse gas emissions by 76%, according to researchers in Australia. If ...

Characters maybe written using either the MAX72XX::Character constants (MAX72XX Code B Font) or as uint8_t values defining the segments to be lit. As the Code B Fonts for 0 - 9 are BCD, they can be ...

A large bedroom requires a powerful humidifier with a large water tank capacity. If not, your machine can't provide enough moisture for your big bedroom. Take a look at the detailed information of ...

Background In April 2011 a tertiary hospital in Seoul, Korea reported several cases of severe respiratory distress of unknown origin in young adults. Methods To find the route of transmission, ...

Browse 500+ Arduino projects with downloadable code and circuit diagrams. Complete tutorials for beginners and advanced makers.