door_access_controllers
Differences
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door_access_controllers [2019-09-22 22:08] – tim | door_access_controllers [2019-09-22 22:10] – [PCB v3] tim | ||
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==== PCB v3 ==== | ==== PCB v3 ==== | ||
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+ | https:// | ||
* Off-the-shelf DC-DC converter instead of custom circuit | * Off-the-shelf DC-DC converter instead of custom circuit | ||
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* Normally-closed relay option removed | * Normally-closed relay option removed | ||
* Pull-up removed from piezo | * Pull-up removed from piezo | ||
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+ | This is a minor revision and is not likely to be rolled-out except where a new door is required. | ||
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+ | PCBs have been ordered 22nd September 2019. | ||
==== Future ==== | ==== Future ==== |
door_access_controllers.txt · Last modified: 2023-04-08 10:24 by tim