A 4x4 capacitive touch button grid

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ReferencesQtyManufacturerMPNDigikeyMouser
C1,C22VishayVJ0603A220JXACW1BC399-7874-1-ND77VJ0603A220JXACBC
C12,C13,C14,C154VishayVJ0603Y472KXACW1BC720-1387-1-ND77VJ0603Y472KXACBC
C10,C11,C32,C4,C5,C7,C8,C9,C349YageoCC0603ZRY5V9BB104311-1343-1-NDCC0603ZRY5V9BB104
C3,C332MurataGRM188R61C105KA93D490-1536-1-ND81GRM39R105K16
C61AVXF931A106KAA478-8192-1-ND647F931A106KAA
D1,D10,D11,D12,D13,D14,D15,D16,D2,D3,D4,D5,D6,D7,D8,D916LumexSSL-LXA228SIC-TR3167-2243-1-ND696LLXA228SICTR31
R1,R22PanasonicERJ-3EKF22R0VP22.0HCT-ND667ERJ3EKF22R0V

NoMech

NoMech touch sensor board. Based on the work of Kasbah.

Current developments:

  • NoMech 4x4 board
  • NoMech-8x8 8x8 board

You can buy the parts to build one through the Kitspace page. The firmware is available in the firmaware repo.

It would need some significant development to work robustly. Here is a demo of how far we got with it:

The hardware design is available under CC-BY-SA-3.0. Any firmware in this repo is under GPLv3.