Profile Topics Started Replies Created Engagements Favorites Search topics: Topics Engaged In Viewing topic 1 (of 1 total) Recent Topics Topic Views Posts Freshness OSPi 12vdc – should there be a ground between COM socket and transitor ground? Started by: Luka in: OpenSprinkler Pi (OSPi) 3109 2 5 years, 2 months ago Ray Viewing topic 1 (of 1 total)