Schematic Demonstration

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1 1 2 2 3 3 4 4 5 5 D D C C B B A A Arduino S3v3 Demonstration Board 29 January 2013 Arduino 1 Revision: 2:61 Sheet: Schematic Designed by: Sam Checked by: Fussy Dave Approved by: QA Size: A RESET 1 (RXD) 2 (TXD) 3 (INT0) 4 (INT1) 5 (XCK/T0) 6 VCC 7 GND 8 XTAL1 9 XTAL2 10 (T1) PD5 11 (AIN0) PD6 12 (AIN1) PD7 13 (ICP1) PB0 14 PC5 (ADC5/SCL) 28 PC4 (ADC4/SDA) 27 PC3 (ADC3) 26 PC2 (ADC2) 25 PC1 (ADC1) 24 PC0 (ADC0) 23 AGND 22 AREF 21 AVCC 20 PB5 (SCK) 19 PB4 (MISO) 18 PB3 (MOSI/OC2) 17 PB2 (SS/OC1B) 16 PB1 (OC1A) 15 AtMega8 U2 J2 1 2 3 4 5 6 7 8 J5 1 2 3 4 5 6 J1 1 2 3 4 5 6 7 8 DS4 L R9 3.1KΩ Reset AREF L1 100μH C7 100nF C3 20pF 5V AREF 1 2 3 4 5 9 8 7 6 D-Sub 9 X1 1 2 3 J3 Q1 BC557 R6 100KΩ R8 10KΩ R4 4.7KΩ C6 10μF R7 10KΩ R10 10KΩ D31 1nF Q2 BC547 R3 1KΩ DS1 TX R2 1KΩ D2 IN4001 5V Released under the Creative Common Attribution Share-Alike 2.5 License http://creativecommons.org/licenses/by-sa/2.5/ M8RXD M8TXD J4 Auto Reset 1 2 R5 10KΩ 5V C4 10nF R11 1KΩ DS2 RX M8TXD M8TXD C5 100μF C10 100μF C2 10nF DS3 Power LED s1 1KΩ 5V D1 IN4001 VIN Input 1 Ground 2 Output 3 Regulator U1 J6 1 2 J21 1 2 3 4 5 6 5V Reset VIN X2 16000 C9 10nF C8 22pF PORT(D8-D3) PORT C(A0-A5) PORT D(D0-D7) Arduino S3v3 Revision 2

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