We used the board developed in the Google Audio-to-tactile project (Big thanks!). It is an open source board with a Nordic nRF52840 MCU.
It's not commercially available in this form and needs to be produced from the specifications provided here.
The rest of the components needed can be found in the BOM.
The fingerbeds and casing are 3D printed. The models can be found in the documentation folder.
v26
v23
