Trying to learn KiCAD…still rough, but getting better. Finally enough drafted to share (and drown in the red ink as you all mark it up)… Thanks in advance for constructive criticism!
Showing just two of eight independent parallel igniter sub-circuits. And considering variations…DPDT vs. SPDT…Arduino source current for continuity measurements vs. dedicated constant current source…building driver/relay sub-circuits vs. buying an 8x driver/relay board…
Obviously just focused on the pre-launch continuity tests and one the launch signal handling. There ARE MULTIPLE power discos, removable keys, momentary “deadman” switches, and program logic safety measures as well!