The output side of the board has 6 pin headers, with 4 pins to be connected with the digital I/O of any micro-controller board (Arduino, ARM STM32). 4 status LED SMD types are provided to check the status of each pressed key. TTP 224 4 Channel Digital Touch Sensor is compatible with all Arduino&Raspberry Pi board. This is a 4 switch digital touch sensor with capacitive sense technology, the TTP 224 IC offers capacitive sense input feed designed for touchpad control, followed by a 4- finger-sized touchpad.
Technical Specifications
- Operating Voltage Range: 2 V to 5.5 V
- Operating Current: 2.5μA
- Output Response Time: 60ms
- Startup Calibration Delay: 0.5 sec
- Weight: 3 g
- Dimensions: 6 x 8 x 2 cm
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Sensor
MPR121 ( Capacitive touch module)
- Low power operation.1.71 V to 3.6 V supply operation
- 29μA supply current at 16 ms sampling interval period
- 3μA Stop mode current
- 12 capacitance sensing inputs
- Auto-calibration for each sensing input
- Complete touch detection LED driver functionality with 8 shared
SKU: STEM18065
