Learn how to control and blink multiple LEDs using the MAX7219 driver with Arduino. A simple guide for beginners in electronics and coding. #Arduino #MAX7219 #LEDProjects #ElectronicsTutorial John ...

Thus, they entered a heart rate sensor to our 2025 One Hertz Challenge! The build is based around a Wemos D1 mini, a ESP8266 development board.

Reduced sleep hours and reduced eye blink rate also augment the symptoms of eye dryness. The common symptoms for dry eyes are grittiness, feeling of rubbing the eyes, dry sensation.

Eyestrain is common, but it can generally be treated with simple, noninvasive methods, like adjusting your screen, using eye drops, or taking visual breaks.

To protect your eye health and support your vision, these are 10 simple things you can do every day for your eyes.

Spot the hidden bear in this stunning scenic optical illusion. Test your 20/20 vision, sharp IQ, and observation skills by finding it within 5 seconds.

Camera manufacturers tend to not want you to use filters over the camera sensor because they state that the image quality degrades. However, that’s not really the case.

Only 1% can spot the hidden odd number in this ‘421’ numerical optical illusion. Test your observation, IQ, and Hawk–Eye vision in this fun brain teaser.

Health experts have warned women using lash serums that promise longer, darker lashes that the trending beauty product could also cost them their eye-colour.