This controller makes your HHKB fully programmable. You can use this with tmk_keyboard firmware. This will fit HHKB Pro2, Type-S and JP.

You can buy assembled board here. https://geekhack.org/index.php?topic=71517.0

141.50x36.00mm(1.6mm thick)

• 2017/06/27: Rev.N Fix footprint of USB: add SMD pads for frame
• 2017/05/03: Rev.M Fix footprints of USB, LED, SKHH and DF14
• 2016/08/27: Rev.L Enlarge TH land of USB connector
• 2016/07/03: Rev.K Add reverse polarity protection and change foot print of D1
• 2016/01/28: Rev.J Add TMK logo and remove C13
• 2015/12/01: Rev.I Changed USB miniB to UX60SC-MB-5S8(through hole)
• 2015/12/01: Rev.H' Changed lands of USB miniB to recomended size
• 2015/07/xx: Rev.H
• 2015/03/xx: Rev.G
• 2014/12/xx: Rev.F
• 2014/11/xx: Rev.E
• 2014/09/19: Rev.D
• 2014/07/28: Rev.C

TBD