this post was submitted on 24 Sep 2026
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Eneloops would only last about 3 weeks. And disposable last 2 months. This door is used a lot and since it has Zwave and a door open sensor it sends info on every open.

Bonus, since it can handle the lipo AA batteries that put out 1.8v and it gives the motor more oomph I made the battery pack give 7.2v and it never sticks anymore.

This is a garage-door so its not critical access but is used a lot.

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[–] Truscape@lemmy.blahaj.zone -1 points 1 month ago* (last edited 1 month ago) (1 children)

Creating programmable cards is exactly what we did at uni using an android app and a peripheral lol

(Including getting into utility rooms back when the security was an afterthought)

[–] Axolotl_cpp@feddit.it 4 points 1 month ago (1 children)

Yes but did you made an NFC or an RFID? As much as i know, most phones have only partial(eg: only reading) or no support to RFID

And again, you'd need to know what the reader on the door want, you cannot just give it any random data and hope it works, i could accept only an encoded password in SHA-256 and you would not be able to do much really, there are probably ways to break thru but at that point is faster and easier to lockpick the door

[–] Truscape@lemmy.blahaj.zone -2 points 1 month ago (1 children)

NFC with solely the phone, RFID using an android app and with a programmer attached via USB.

[–] W98BSoD@lemmy.dbzer0.com 2 points 1 month ago

And where did the source come from to program onto the new card?