John Doyle Profile Topics Started Replies Created Engagements Favorites Search replies: Forum Replies Created Viewing 2 posts - 1 through 2 (of 2 total) Author Posts October 20, 2023 at 2:07 pm in reply to: Reaction Timer Display Problem #15163 John DoyleParticipant Thanks Michael,sure enough it was a bad solder joint. Everything is working great. The kids who play a lot of video games have the fastest score. July 3, 2023 at 1:20 pm in reply to: Duplicate display #15077 John DoyleParticipant Could I use your Digital Shield to Connect to the display on the GTP to duplicate the display? Author Posts Viewing 2 posts - 1 through 2 (of 2 total)