minus-squarenezrock@lemmy.dbzer0.comto3DPrinting@lemmy.world•Tired of expensive disposable batteries and rechargeable AA suck. So I made a 10k mAh pack for my deadbolt.linkfedilinkEnglisharrow-up4·16 days agoThis is how electronic locks work in prisons and jails. Motor in the doorframe with a bolt, power on to unlock, fails secure in the event of a power outage. linkfedilink
This is how electronic locks work in prisons and jails. Motor in the doorframe with a bolt, power on to unlock, fails secure in the event of a power outage.