MPR121 breakout

from the datasheet "Connect to VSS/VDD/SDA/SCL to chose the address ox5A,0x5B,0x5C,and 0x5D", you can change the address as:

  1. cut off the wire in the ADD, if not cut, the address would be 0x5A;
  2. connect the right side of ADD to 3V3, to select the address 0x5B; connect the right side of the ADD to right side of SDA/SCL to seelct address 0x5B/0x5C.

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