HSINCHU, Taiwan, Sept. 28, 2017 /PRNewswire/ -- Lextar Electronics released the PR88 IR LED packaging module that is used for iris and facial biometric functions, making it one of a few IR LED modules ...

As you might have noticed, the 38-KHz pulse generator is built around the evergreen timer chip NE555P (IC1). Here, the RC components (R5-C3-P1) set the astable frequency to drive the infrared light ...

I’ve been building up some microcontroller based miniature spy cameras using readily available tiny camera modules. Since I know an add-on infrared illuminator makes it easy to have better night ...

- In recent years, handheld devices were gradually equipped with identification recognition systems to achieve more convenient unlocking and mobile payment functions, while taking care of the ...