Raspberry Pi Touch Keypad

16-key I2C capacitive touch keypad expansion board for Raspberry Pi, using the TTP229-LSF IC with adjustable sensitivity, 2.4–5.5 V operation, and auto-recalibration. Allow 0.5 s stabilization after power-on before touching keys.

Start wiring

I2C · Analog · USB · 3.3 – 5 V · Breakout

Confirm the data interface matches your host board.

Keypads

36 other options

Matrix keypads, analog ADKey boards, I2C keypad controllers, joysticks, and finished USB-HID keyboards are all here. Pin budget and simultaneous-press requirements are the splits that matter.

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4x4 Matrix Keypad visual preview
4x4 Matrix Keypad

Related groups

4 groups

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Encoders

Bare EC11 quadrature encoders, I2C navigation encoders, absolute AS5600 and 8421 encoders, slide and ribbon potentiometers, and digital I2C pots — covering most ways to read angular or linear position.

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Touch

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3D printing

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