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Touch keyboard – 8 keys and 1 slider

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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