| RS-485 or RS-422 buses are still widely used in industry for access control, video surveillance and many other applications. However, the st...
| RS-485 or RS-422 buses are still widely used in industry for access control, video surveillance and many other applications. However, the st...
| Have a Raspberry Pi that needs power, as well as an old ATX power supply? A PCB, some components, and an ATtiny will connect the dots.
| Since the DB25 / DB9 serial port has disappeared on modern PCs, it is getting complicated to connect up legacy equipment with RS-232 connect...