| If you want to apply computer control to a solenoid valve or another DC load there is no need to start looking for an expensive measurement...
All items tagged with Switch and RS232 (5)
| This circuit can be built into a power bar and used to remotely switch six socket-outlets. It is controlled via an RS232 interface and uses...
| Only simple materials and a little bit of skill are needed to build an RS232 switch. All that you need are two 9-way sub-D plugs with solder...
| The circuit presented in this article enables you to build a software-controlled 8-channel analogue switching unit that will be hard to be...
| Although a PC can be equipped with four RS232 serial ports, only two of these are available on most machines. Worse, most laptops have ju...