Ttp229 16 Way Capacitive Touch Switch 4×4 Keypad Digital Touch Sensor Module

This 16 key capacitive touch keypad is based on the TTP229 capacitive sensor with accurate sensing of up to 16 points. Using this Touch keypad provides a solid-state alternative to mechanical type keypads providing the advantage of greater durability especially in dusty environments. The Digital Touch keypad Sensor can also be configured in different modes providing various key group options up to 16 independent keys. Outs 1 to 8 on the header connector mimics the states of the first 8 keys. 

Features And Specifications Of TTP229 16-Channel Digital Capacitive Switch Touch Sensor Module for Arduino:

• Operating voltage2.4V~5.5V
• Built-in regulator
• Stand-by current At 3V, and sleep mode slow sampling rate 8Hz
  • => Typical 2.5uA for 16 input keys
  • => Typical 2.0uA for 8 input keys
• 8 Key or 16 key modes
• Separate outputs to 8 keys in 8 key mode
• 2 wires serial output interface for both 16 key and 8 key mode
• Outputs can be set to CMOS/OD/OC with active high/low
• 2 Wires serial interface can select active high or low by option
• Optional Multi-key or single-key
• Provides two kinds of sampling rate: slow sampling rate 8Hz and fast sampling rate 64Hz at sleep mode
• Optional maximum key-on time about 80sec
• Auto calibration at power-up (keypad must not be touched for 0.5 seconds after power-up)
• Auto calibration for changes in an environment

Package Include:

• 1 x TTP229 16-way capacitive touch sensor keypad

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