Dusty clockwork and wired doorbells become networked tools when tiny ESP32 modules add internet time and smart triggers.

A mechanical TV — the kind that makes an image with a Nipkow disk and a single lamp with some help from persistence of vision — is easy enough to wrap your head around. Moving that technique into the ...

There are some projects that seem at first sight to be easy, but anyone who tries them finds a whole heap of unexpected problems and turns to the off-the-shelf device. PCB antennas for example, or ...

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So, if the pin layouts on a tutorial don’t match the ones I’ve got on my ESP32, I’d look at what protocol the sensor uses, go ...

Ayush Pande is a PC hardware and gaming writer. When he's not working on a new article, you can find him with his head stuck inside a PC or tinkering with a server operating system. Besides computing, ...

Petoi Quaddle is a palm-sized robot dog kit with four servos and wheeled feet. Build it in minutes, then code it with blocks, Python, or Arduino C++.

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