Lazarus Archive · LZ-31496

Willow sewing machine controller, model BG-550

Willow Electronics, 1983. Firmware for an embedded controller.

Description

Control firmware for a sewing machine, read from the machine’s chips before it was scrapped.

Provenance

Found in a school storeroom when the building was cleared. Read with the owner’s consent and credentials. Nothing was bypassed. Independent reads agree bit for bit.

Preservation

Fixity (SHA-256)
60e6c687edf872148e2ba32fe888623957d8cf3ed62517cc3c5c20a5ed89306a
Last verified
Oct 13, 2026, by Vigil
Emulation profile
LZE-EMBED-2 · lz-mcu core
Copies
Three, on two kinds of storage, in two cities
Original carriers
Kept in cold storage in Vancouver

Access

Free, in reading rooms only, under the Lazarus orphan works policy.

In the reading room it runs in emulation under profile LZE-EMBED-2, from a read-only copy of the recovered image, as it would have on an embedded controller.

Cite as: Willow Electronics, Willow sewing machine controller, model BG-550 (1983). Lazarus Archive, LZ-31496.

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