Common ground › Forums › General Questions and Comments › Common ground This topic has 2 replies, 1 voice, and was last updated 2 months ago by Sven. Viewing 2 reply threads Author Posts 2020-11-24 at 14:58 #11623 Reply svenGuest Is it correct that both the 9V, 5V and 12V parts of the cirquit all have common grounds? For example, do the LEDs and Solenoid valves all use the same ground connection? Or do i need to keep those separate? 2020-11-25 at 06:00 #11631 Reply MartynKeymaster Hi Sven, yes. The ground is common for all those parts. The only part that is separate are the camera and flash triggers and these are separated using optocouplers. 2020-11-25 at 21:19 #11635 Reply SvenGuest Thanks, makes the PCB a lot simpler 🙂 Author Posts Viewing 2 reply threads Reply To: Common ground Your information: Name (required): Mail (will not be published) (required): Website: Cancel Submit