ta-65 rev4

65% PCB compatible with the Tada68 case and keyboards like it.

The many revisions

This board originally started out as a custom PCB for the Aanzee by westfoxtrot. I decided to make more of them, and with some changes, the ta-65 was born. It had always come with a Mini USB connector up until the third revision, and since then it has not been compatible anymore with the M65-a, however, I am willing to make that happen if someone asks about it :)

Features

• Uses QMK Firmware and VIA
• Compatible with any case that uses the TADA68 PCB in its design
• USB-C connector
• ESD protection and fuse
• No in-switch LEDs
• Supports underglow with less likely to fail WS2813B LEDs
• ISP header
• JST header for use with a daughterboard

Supported layouts

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Design files

Of course, as with any of my boards, you are responsible for what you do with this power. Before opening the files: read the license, of course, and also make sure you have the latest (stable finally!) version of KiCad, 6.0.2 or higher.

Manufacturing

Manufacturing files and a 3d model (.step) are in here as well. Have fun!

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Changelog

• Rev 1 (e.a. feb 2019)

  First release

• Rev 2 (e.a. jan 2020)

  Added a JST header and switched the crystal over to a resonator. First attempt at compatibility with the M65-a (but unsuccesful; PCB too wide)

• Rev 3 (e.a. april 2020)

  First revision to include USB-C (which ended up breaking compat with the M65-a again).

• Rev 3.1 (e.a. ???)

  Change daughterboard connector to fit the Unified Daughterboard specification. Probably nothing else.

• Rev 4 (e.a. feb 2022)

  Mostly redone routing, added solder header for pin B7 (free pin), moved daughterboard connector, made PCB outline somewhat prettier, changed WS2812B LEDs to WS2813B LEDs. Also the first the release as an open source hardware project.