1. Draw the circuit diagram or, alternatively, make a table to keep track of the connections to connect pins 0-6 of Port D on the ATmega328P (see Figure 1) to the right digit of the HDSP-523E display (see Figure 2 and Table 1). The arrangement is your choice, just pick something that makes sense to you such as PDO to anode a, PD1 to anode b, etc. Ignore the decimal point (DP) LED. (PCINT14/RESET) PC61 (PCINT16/RXD) PDO 2 (PCINT17/TXD) PD13 (PCINT18/INTO) PD2 (PCINT19/0C2B/INT1) PD3 (PCINT20/XCK/TO) PD4 vec GND 8 (PCINT6/XTAL1/TOSC1) PB69 (PCINT7/XTAL2/TOSC2) PB7 10 (PCINT21/OCOB/T1) PD511 (PCINT22/OCOA AINO) PD6 12 (PCINT23/AIN1) PD7 13 (PCINTO/CLKO/CP1) PBO 14 28PC5 (ADC5/SCL/PCINT13) 27 PC4 (ADC4/SDA PCINT12) 26 PC3 (ADC3/PCINT11) 25PC2 (ADC2/PCINT10) 24 PC1 (ADC1/PCINT9) 23PCO (ADCO/PCINTS) 22 GND 21 AREF 20 AVCC 19 PBS (SCK/PCINTS) 18 PB4 (MISO/PCINT4) 17 PB3 (MOSVOC2APCINT3) 16 PB2 (SSOC1B/PCINT2) 15PB1 (OC1A/PCINT1) Figure 1: Pin diagram for ATmega328P COMMON CATHODE PIN FUNCTION 1 E ANODE NO. 1 2 D ANODE NO. 1 C ANODE NO. 1 DP ANODE NO.1 E ANODE NO. 2 D ANODE NO. 2 7 G ANODE NO. 2 C ANODE NO. 2 DP ANODE NO. 2 B ANODE NO. 2 A ANODE NO. 2 F ANODE NO. 2 DIGIT NO. 2 CATHODE DIGIT NO. 1 CATHODE B ANODE NO.1 A ANODE NO. 1 G ANODE NO. 1 F ANODE NO.1 18 17 16 15 14 13 12 11 10 LE * 16 2010 i 2 3 4 5 6 7 8 Figure 2: Internal circuit diagram for HDSP-523E Table 1: Pin list for HDSP-523E