In this video I've created a device that can notify in real time about events that happen on a website. The project uses NodeMCU board and a buzzer to produce sound as alert. The board is programmed ...

Eufy has announced its new dedicated Glass Break Sensor E10, designed to detect the sound of glass breaking, potentially alerting users to an intruder. The sensor is expected to launch soon in Europe ...

How often have you pulled out old MCU-based project that still works fine, but you have no idea where the original source code has gone? Having the binary image and the source code as separate things ...

Testing for failure with a multimeter is only partially effective, whereas a dedicated optocoupler testing circuit provides clear results in just seconds. For related tutorials and step-by-step build ...

Recently, I talked about how using your old Android phone as a security camera isn't the best approach for repurposing it, and discussed the possibility of using it as a smart home remote of sorts.

Exceptional points (EPs) in non-Hermitian systems offer a strong response to perturbations, offering a promising platform for sensing. By using a third-order EP of coherent perfect absorption, here, ...