door_access_controllers
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revision | Next revisionBoth sides next revision | ||
door_access_controllers [2019-02-24 00:35] – tim | door_access_controllers [2019-02-24 00:39] – [PCB] tim | ||
---|---|---|---|
Line 33: | Line 33: | ||
Errata: a generic through-hole flyback diode should be fitted between GND and 12V_OUT, on the underside of the screw terminal. | Errata: a generic through-hole flyback diode should be fitted between GND and 12V_OUT, on the underside of the screw terminal. | ||
+ | ==== Lessons Learned ==== | ||
+ | |||
+ | Future PCB revisions are likely to be based on a Wemos D1 Mini module to reduce component count and allow easier debugging. The onboard DC-DC converter will be replaced with an off-the-shelf "LDO replacement" | ||
===== Controller Unit ===== | ===== Controller Unit ===== | ||
door_access_controllers.txt · Last modified: 2023-04-08 10:24 by tim