Full keypad. Keypad added wires, assembly steps, and input tracking in the software. QR codes solve all this really well. The sensor scans for complete codes only, so no partial inputs. Built in error correction. You can pack hundreds of bytes in a relatively small space. Great! - ThreadSky

subspacedboy.bsky.social • 16 days ago

Full keypad. Keypad added wires, assembly steps, and input tracking in the software.

QR codes solve all this really well. The sensor scans for complete codes only, so no partial inputs. Built in error correction. You can pack hundreds of bytes in a relatively small space. Great!

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subspacedboy.bsky.social•16 days ago

That means we can just use modern cryptography instead of numerical codes. Any Dom can make a key pair. They send you the public half as a QR code and load it into the lock by holding your phone over the sensor. They can then send you a digitally signed contract and the lock is locked until the same

subspacedboy.bsky.social•16 days ago

Key sends an “unlock” command.

This system greatly simplifies all the online bits while making unlock codes truly unguessable.

The contract system was a lot of fun. In practice “task list” and “until i said so” were functionally the same. So this reduces everything to “until i said so”. One of my

subspacedboy.bsky.social•16 days ago

Surprise faves was @propertyowner.bsky.social ‘s “accepting this contract means you must accept all future ones for X days.” So I want to add “unremovable until released keys”. Once you accept a contract with this setting the lock is owned by that Dom and only that Dom until they voluntarily

subspacedboy.bsky.social•16 days ago

Release it. Same thing with temporary unlocks. You can make a contract code that says temp unlock is ok and you can just cycle the lock while being under contract. Also thinking about “blind contracts” where you can’t see the terms (because encrypted) until you load it. Blind contract would be

subspacedboy.bsky.social•16 days ago

Fun with randomly generated time intervals for those who self lock.

I haven’t built a test housing for the new electronics but it should be a lot smaller.

Also swaps the rp-2040 core for an ESP32-S3.

Anyway, will keep tinkering and post an update. If there’s a way to greatly simplify

subspacedboy.bsky.social•16 days ago

Production from the first gen I’ll make a run of them otherwise maybe an open source kit.

propertyowner.bsky.social•13 days ago

Good times. 😈

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