Optocouplers frequently fail without a sound in labs or during repairs. The package appears to be undamaged, but there may be no output from the LED source or the photosensitive output stage. Testing ...

Through light waves, optocouplers transfer signals of all types between components. Due to their mode of operation, they also provide electrical isolation and noise immunity not found in other ...

Abstract: This paper presents a real-time hardware testing design based on a hybrid approach between Flying Probe-Inspired In-Circuit Testing (FPICT) and Joint Test Action Group (JTAG) debugging ...

Circuit designers are very familiar with optocouplers, also called optoisolators (and sometimes called optorelays, if configured for on/off mode). They contain a photon-emitting LED with a ...

I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller and a piece ...

Abstract: People living in rural and remote areas of Sub-Saharan Africa generally lack access to electricity due to their geographical location and the costs associated with connecting these areas to ...

Learning electronics? Then, chances are you already know what an Arduino is, or at the very least, you've heard of it. After all, it's among the most popular electronics platforms available in the ...

The following project is an update of Gary D. Patterson’s “Simplified CTC signals” in the July 1988 issue of MR. Bringing the project up to date was a large endeavour. The block control project now ...