Gen7 Endstop is a general purpose optical endstop compatible with RAMPS, Sanguinololu, Generation 7 Electronics and any other controller running on 5 V or 3.3 V. Simple, affordable and easy to build.
For making or getting a Gen7 Endstop, see the latest version.
As with any maintained piece of technology, there have been improvements over time. Surprisingly few changes, the design works and works and works …
Latest and most recommended version is Gen7 Endstop v1.3.1.
Changes from v1.3: none, but Generation 7 Electronics got a new version number due to changes, so the endstop got one, too. Version numbering of board and endstop is independent since then.
Changes from v1.2: none, except for the version number.
Changes from v1.1:
Changes from v1.0: none, except for the version number.
This is the initial version, released together with the then brand new Generation 7 Electronics.