Microsoft pen protocol

The Microsoft Pen Protocol or MPP is a protocol developed by Microsoft for digital pens, designed mainly for Surface Pen but also used by other hardware manufacturers, like HP.

The protocol is based on technology developed by N-trig^[1] (a separate company at the time, though acquired by Microsoft in 2015 for US$200 million),^[2][3]

Version history

• 1st generation (MPP 1.2, 2013)
• 2nd generation (MPP 1.5, 2015)
• 3rd generation (MPP 2.0, 2017)
• Slim Pen (MPP 2.5, 2019)
• Slim Pen 2 (MPP 2.6, 2021)