I have a propane boiler under the house that has a status panel with LEDs that are only running at .5 (one half) volt DC. I would like to tie the indicators into my whole house automation system. I have the capability to sense "Dry Contact" on-off conditions. Any help with a very low voltage sensing circuit??
Thanks, Thom in beautifull Fuquay, NC
Thanks, Thom in beautifull Fuquay, NC