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Touch keyboard – 8 keys and 1 slider

By on January 31, 2019
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Based on the TTP229-LSF chip, this board allows you to make a small 8/16 touch keyboard and a slider.
The system automatically recalibrates when none of the buttons are touched for more than 4 seconds.

Features

  • Interface: I2C or I/O
  • Capacitive touch buttons: 8 or 16
  • Slider: 1
  • Sampling frequency: 8 Hz / 64 Hz
  • Human Body Mode: 6 KV
  • Power supply: from 2.4 Vdc to 5.5 Vdc
  • Working temperature: from -40°C to + 85°C
  • Storage temperature: from -50°C to + 125°C
  • Dimensions (mm): 47 x 68
  • Fixing hole diameter: 3 mm

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About Boris Landoni

Boris Landoni is the technical manager of Open-Electronics.org. Skilled in the GSM field, embraces the Open Source philosophy and its projects are available to the community.

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