b'HOOKUP GUIDEREADY TO START HOOKING EVERYTHING UP? Check out the circuit diagram and hookup table below to see how everything is connected.+ 1 a b c d e f g h i j 1 - + -2 23 3 C1064 45 56 6 SCL7 7 C106 C106 SDA8 8 RX TX 13 AREF9 9 3.3V GNDVOLUME KNOB: NoticeIOREF I/O 1310 1011 11 RESET 5V 12that only two of the12 3.3V ~1112 S T A R TS O M E T H I N G ~1013 13 5V~9potentiometers legs are14 GND 814 POWER ANALOG IN ON15 15 GNDused in these circuits. TheVIN DIGITAL (PWM ~) 716 1617 17 ~6potentiometer is acting as18 A0 ~518 A1 419 19 A2a variable resistor, limitingA3 ~320 20 221 21 A4 1the amount of current22 A5 TX22 ISP RX 023 23flowing to the speaker and 24 2425 25thus affecting the volume as 26 2627 27you turn the knob. 282829 29+ - 30 a b c d e f g h i j 30 + -REMEMBER!POLARITY: The buzzer is polarized. To see which leg is positive and which is negative, flip the buzzer over and look at the markings underneath. Keep track of which pin is where, as they will be hard to see once inserted into the breadboard. There is also text on the positive side of the buzzer, along with a tiny (+) symbol.CONNECTION TYPESREDBOARD CONNECTIONBREADBOARD CONNECTIONJUMPER WIRESGNDtoGND(-)D10toF1 E2toGND (-) E1toF3BUZZER H1(+)to H3(-)POTENTIOMETER B1+B2+B338 : circuit 2a'