MaBell Project Plan v4: Boxed and Installed #

Plan: MaBell Bluetooth Gateway: Project Plan · Previous: v3: Line voltage and a real bell

The end state: the gateway on its own circuit board, in an enclosure, installed at home and in daily use. Status: planned. Its definition of done and tasks are written when it becomes current.

Scope #

• Circuit board: schematic capture and layout in KiCad, built around the line interface chosen in v3, with test points and a programming header.
• Revisions: fabricate, assemble and bring up Rev A; fix what it shows in Rev B and later, until a board is electrically verified against the requirements.
• Firmware: retuned for the board, with the full set of functional sections passing again.
• Enclosure: designed (3D printed or fabricated), with connector placement, strain relief, and thermal and safety review.
• Installed: wired to the house phone and in daily use, with a long-run stability check.
• Documentation: the build, wiring, user and troubleshooting guides, and design notes and lessons learned.

Not in v4: building more units; MaBell is built once.