[Xasin] has been working on a DIY laser tag system ... back in 2018 with simple ATmega328 based prototypes on breadboards. It has since evolved to a fully-featured system with ESP32s in the ...

There’s a huge market for 433 MHz alarm system hardware out there ... In his latest video, [Aaron Christophel] shows how easy it can be. In essence, you connect a common 433 MHz receiver ...

That’s all changed. Today you can buy DIY home security systems that have professional-grade wireless security equipment that’s extremely reliable, easy to install, and affordable. Basic DIY ...