4 layers30 × 51 mm

Launch relay
NCSU-High-Powered-Rocketry-Club/Launch-Relay-KiCAD
KiCAD files for the rocket launch detection relay board
68 partsMIT
Boards in 1 GitHub repository, designed in KiCad, that use the ACPL-217(AT) by AOTE. See how each wires it, with its parts, size, README and files; the ACPL-217(AT)’s symbol, footprint and pinout are on its own page.

NCSU-High-Powered-Rocketry-Club/Launch-Relay-KiCAD
KiCAD files for the rocket launch detection relay board