SCL1ADD_SEL2GND3VDD4BUTTON0/GPIO05BUTTON1/GPIO16BUTTON2/GPIO27BUTTON3/GPIO38BUTTON4/GPIO49BUTTON5/GPIO510INT#11GPIO1212BUTTON6/GPIO613BUTTON7/GPIO714BUTTON8/GPIO815BUTTON9/GPIO916BUTTON10/GPIO1017BUTTON11/DS/GPIO1118RESET#19SDA20EP21