Measuring the speed of a rotating object is a common requirement. Knowing the speed of table and ceiling fans, as well as ...

Today we are going to create a strobe light for the tips of the wings of an rc airplane using a 555 timer (NE 555 or lm 555 IC) this circuit is very easy to make with few components and most ...

Think about how easily you recognize a friend in a dimly lit room. Your eyes capture light, while your brain filters out ...

The ESP32 does everything a Pi Pico does, but costs less and lasts 100x longer on batteries ...

Espressif has released the ESP32-H21, a low-power wireless SoC aimed at Thread, Matter, Zigbee, and Bluetooth LE device designs. The new device is positioned as an incremental update to the ESP32-H2 ...

A research team led by Professor Jiwoong Yang of the Department of Energy Science and Engineering at DGIST has developed next ...

Perovskite crystals can dramatically and reversibly change shape when hit with light, a behavior not seen in conventional ...

Flash Bee is an easy-to-make DIY handheld lightning detector based on an ESP32-C3 board, a round display, and AMS AS3935 ...

Humans have been studying and playing with light for millennia — from the ancient civilizations using rock crystals to magnify objects and focus sunlight to ignite fires, to Galileo who sparked the ...

Densitron is a global provider of industrial displays, HMI and tactile interface technologies for mission-critical ...