Color sensing (as well as detecting empty spaces) settled on IR-based sensors commonly used in line-following robots. ... Posted in LED Hacks Tagged candle, ir sensor, LED candle, mosfet, ws2812b.

Each sensor card is a combination of an infrared LED, infrared photodiode, and a comparator chip works on 5V DC supply. The comparator circuit is wired using one-part (½) of the LM358 IC. In the ...

Some readers may recall building a line-following robot during their school days. Involving some IR LEDs, perhaps a bit of LEGO, and plenty of trial-and-error, it was fun on a tiny scale. Now imagi… ...

The sensor is intended as an alternative to pyroelectric sensors or PIR detectors in home automation, building automation, healthcare, security and industrial applications. Typically human presence ...