Tested with the Robotdyn 16 Keys I2C Capacitive Touch TTP229 Module Robotdyn Capacitive Touch Disk Pad. uint16_t readKeys() - Read data from TTP229 and return states of 16 keys in bitmap ...
Copy the "TTP229" library folder to your /libraries/ folder. Restart the IDE (close and open again). Then in Arduino IDE: File -> Examples -> TTP229 -> KeyToSerial. File -> Examples -> TTP229 -> ...
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