Optical primary trigger page for MembersPage/EricN/Trigger
Planning on using 12-1 trigger wheel mounted in the distributer.
Trying an optical trigger now, followed instructions for Hall sensor on primary trigger as per manual.
Have some questions. Went to the local electronics store and picked up an OPB804 optical switch. Built it into this little circuit that I found on the internet
Changed the 1k resister to 100ohm, voltage at led is 1.25v to gnd. Using pullup on vems,signal high (beam blocked) is 4.6v, low is .25v to gnd (how low does this need to be minimum). Using a peice of paper as a shutter wheel, I get rpm reading, no higher than 100rpm at the moment.
Todo- Build new trigger wheel for optical sensor, reset config, cross my fingers.