6
PE6 (INT6/AIN0) 1 UVcc 2 D- 3 D+ 4 UGnd 5 UCap 6 VBus 7 PB0 (SS/PCINT0) 8 PB1 (PCINT1/SCK) 9 PB2 (PDI/MOSI/PCINT2) 10 PB3 (PDO/MISO/PCINT3) 11 PB7 (OC0A/OC1C/PCINT7/RTS) 12 RESET 13 VCC 14 GND 15 XTAL2 16 XTAL1 17 PD0 (INT0/SCL/OC0B) 18 PD1 (INT1/SDA) 19 PD2 (INT2/RXD1) 20 PD3 (INT3/TXD1) 21 PD5 (XCK1/CTS) 22 GND 23 AVCC 24 PD4 (ICP1/ADC8) 25 PD6 (T1/OC4D/ADC9 26 PD7 (T0/OC4D/ADC10) 27 PB4 (PCINT4/ADC11) 28 PB5 (OC1A/OC4B/PCINT5/ADC12) 29 PB6 (OC1B/OC4B/PCINT6/ADC13) 30 PC6 (OC3A/OC4A) 31 PC7 (ICP3/CLK0/OC4A) 32 PE2 (HWB) 33 VCC 34 GND 35 PF7 (ADC7/TDI) 36 PF6 (ADC6/TDO) 37 PF5 (ADC5/TMS) 38 PF4 (ADC4/TCK) 39 PF1 (ADC1) 40 PF0 (ADC0) 41 AREF 42 GND 43 AVCC 44 PAD 45 ATmega32U4 1 uF C3 5V L1 10 uH 0.1 uF C5 AVCC 5V AVCC 0.1 uF C4 VBUS 22 R2 22 R1 nRESET MISO MOSI SCK TXLED D8 D9 D10 D11 D3 D2 D0 D1 D4 D12 D6 D7 D5 D13 A0 A1 AREF HWB A2 A3 A4 A5 RXLED Y1 16 MHz 10 pF C1 10 pF C2 SW1 AVR3V3 VBUS 1 D- 2 D+ 3 ID 4 GND 5 NC 6 NC 7 NC 8 NC 9 NC 10 NC 11 USB Micro-B 5V 0.1 uF C31 0.1 uF C25 0.1 uF C32 A-Star 32U4 Prime SV ©2014 Pololu Corporation www.pololu.com Schematic diagram Primary microcontroller connections Page 1 of 6 PIC101 PIC102 COC1 PIC201 PIC202 COC2 PIC301 PIC302 COC3 PIC401 PIC402 COC4 PIC501 PIC502 COC5 PIC2501 PIC2502 COC25 PIC3101 PIC3102 COC31 PIC3201 PIC3202 COC32 PIJ101 PIJ102 PIJ103 PIJ104 PIJ105 PIJ106 PIJ107 PIJ108 PIJ109 PIJ1010 PIJ1011 COJ1 PIL101 PIL102 COL1 PIR101 PIR102 COR1 PIR201 PIR202 COR2 PISW101 PISW102 COSW1 PIU101 PIU102 PIU103 PIU104 PIU105 PIU106 PIU107 PIU108 PIU109 PIU1010 PIU1011 PIU1012 PIU1013 PIU1014 PIU1015 PIU1016 PIU1017 PIU1018 PIU1019 PIU1020 PIU1021 PIU1022 PIU1023 PIU1024 PIU1025 PIU1026 PIU1027 PIU1028 PIU1029 PIU1030 PIU1031 PIU1032 PIU1033 PIU1034 PIU1035 PIU1036 PIU1037 PIU1038 PIU1039 PIU1040 PIU1041 PIU1042 PIU1043 PIU1044 PIU1045 COU1 PIY101 PIY102 PIY103 PIY104 COY1 PIC2502 PIC3102 PIC3202 PIL101 PIU102 PIU1014 PIU1034 PIU1036 NLA0 PIU1037 NLA1 PIU1038 NLA2 PIU1039 NLA3 PIU1040 NLA4 PIU1041 NLA5 PIC401 PIU1042 NLAREF PIC502 PIL102 PIU1024 PIU1044 PIC301 PIU106 NLAVR3V3 PIU1020 NLD0 PIU1021 NLD1 PIU1019 NLD2 PIU1018 NLD3 PIU1025 NLD4 PIU1031 NLD5 PIU1027 NLD6 PIU101 NLD7 PIU1028 NLD8 PIU1029 NLD9 PIU1030 NLD10 PIU1012 NLD11 PIU1026 NLD12 PIU1032 NLD13 PIC101 PIC201 PIC302 PIC402 PIC501 PIC2501 PIC3101 PIC3201 PIJ105 PISW101 PIU105 PIU1015 PIU1023 PIU1035 PIU1043 PIU1045 PIY102 PIY104 PIU1033 NLHWB PIU1011 NLMISO PIU1010 NLMOSI PIC102 PIU1016 PIY101 PIC202 PIU1017 PIY103 PIJ102 PIR201 PIJ103 PIR101 PIJ104 PIJ106 PIJ107 PIJ108 PIJ109 PIJ1010 PIJ1011 PIR102 PIU104 PIR202 PIU103 PISW102 PIU1013 NLnRESET PIU108 NLRXLED PIU109 NLSCK PIU1022 NLTXLED PIJ101 PIU107

PIJ1011 PIJ1010 PIJ109 PIJ108 PIJ107 PIJ106 · pb2 (pd i/mo si /pc in t 2 ) 1 0 pb3 (pd o /mi so /pc in t 3 ) 1 1 pb7 (o c 0 a/ o c 1 c /pc in t 7 /r t s) 1 2 r eset 1 3 vc c 1 4

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PE6 (INT6/AIN0) 1

UVcc 2

D-3

D+4

UG

nd5

UCap 6

VBus7

PB0 (SS/PCINT0)8

PB1 (PCINT1/SCK)9

PB2 (PDI/MOSI/PCINT2)10

PB3 (PDO/MISO/PCINT3)11

PB7 (OC0A/OC1C/PCINT7/RTS)12

RESET13

VCC 14

GN

D15

XTAL216

XTAL117

PD0 (INT0/SCL/OC0B)18

PD1 (INT1/SDA)19

PD2 (INT2/RXD1)20

PD3 (INT3/TXD1)21

PD5 (XCK1/CTS)22G

ND

23

AVCC 24

PD4 (ICP1/ADC8)25

PD6 (T1/OC4D/ADC926

PD7 (T0/OC4D/ADC10)27

PB4 (PCINT4/ADC11)28

PB5 (OC1A/OC4B/PCINT5/ADC12)29

PB6 (OC1B/OC4B/PCINT6/ADC13)30

PC6 (OC3A/OC4A) 31

PC7 (ICP3/CLK0/OC4A) 32

PE2 (HWB) 33

VCC 34

GN

D35

PF7 (ADC7/TDI) 36

PF6 (ADC6/TDO) 37

PF5 (ADC5/TMS) 38

PF4 (ADC4/TCK) 39

PF1 (ADC1) 40

PF0 (ADC0) 41

AREF 42

GN

D43

AVCC 44

PA

D45

ATmega32U4

1 uFC3

5V

L1

10 uH

0.1 uFC5

AVCC

5V AVCC

0.1 uF

C4

VBUS

22

R2

22

R1

nRESET

MISOMOSISCK

TXLED

D8D9D10D11

D3D2D0D1D4

D12D6

D7

D5D13

A0A1

AREF

HWB

A2A3A4A5

RXLED

Y1 16 MHz

10 pFC1

10 pFC2

SW1

AVR3V3

VBUS 1

D- 2

D+ 3

ID 4

GND 5

NC

6N

C7

NC

8N

C9

NC

10N

C11

USB Micro-B5V

0.1 uFC31

0.1 uFC25

0.1 uFC32

A-Star 32U4 Prime SV©2014 Pololu Corporationwww.pololu.com

Schematic diagramPrimary microcontroller connections

Page 1 of 6

PIC101

PIC102COC1

PIC201

PIC202 COC2

PIC301

PIC302COC3

PIC401 PIC402

COC4

PIC501

PIC502 COC5

PIC2501

PIC2502 COC25

PIC3101

PIC3102 COC31PIC3201

PIC3202 COC32

PIJ101

PIJ102

PIJ103

PIJ104

PIJ105

PIJ106PIJ107PIJ108PIJ109PIJ1010PIJ1011

COJ1

PIL101 PIL102

COL1

PIR101 PIR102

COR1PIR201 PIR202

COR2

PISW101 PISW102

COSW1

PIU101

PIU102

PIU103

PIU104

PIU105

PIU106

PIU107

PIU108

PIU109

PIU1010

PIU1011

PIU1012

PIU1013

PIU1014

PIU1015

PIU1016

PIU1017

PIU1018

PIU1019

PIU1020

PIU1021

PIU1022

PIU1023

PIU1024

PIU1025

PIU1026

PIU1027

PIU1028

PIU1029

PIU1030

PIU1031

PIU1032

PIU1033

PIU1034

PIU1035

PIU1036

PIU1037

PIU1038

PIU1039

PIU1040

PIU1041

PIU1042

PIU1043

PIU1044

PIU1045

COU1

PIY101

PIY102

PIY103

PIY104

COY1

PIC2502

PIC3102 PIC3202

PIL101

PIU102

PIU1014

PIU1034

PIU1036NLA0

PIU1037NLA1

PIU1038NLA2

PIU1039NLA3

PIU1040NLA4

PIU1041NLA5

PIC401PIU1042NLAREF

PIC502PIL102

PIU1024

PIU1044

PIC301PIU106

NLAVR3V3

PIU1020NLD0

PIU1021NLD1

PIU1019NLD2

PIU1018NLD3

PIU1025NLD4

PIU1031NLD5

PIU1027NLD6

PIU101NLD7

PIU1028NLD8

PIU1029NLD9

PIU1030NLD10

PIU1012NLD11

PIU1026NLD12

PIU1032NLD13

PIC101 PIC201

PIC302

PIC402

PIC501

PIC2501

PIC3101 PIC3201

PIJ105

PISW101

PIU105 PIU1015 PIU1023 PIU1035 PIU1043 PIU1045PIY102 PIY104

PIU1033NLHWB

PIU1011NLMISO

PIU1010NLMOSI

PIC102

PIU1016

PIY101

PIC202PIU1017PIY103

PIJ102 PIR201

PIJ103 PIR101

PIJ104

PIJ106PIJ107PIJ108PIJ109PIJ1010PIJ1011

PIR102

PIU104

PIR202 PIU103

PISW102

PIU1013

NLnRESET

PIU108NLRXLED

PIU109NLSCK

PIU1022NLTXLED

PIJ101

PIU107

12

43

5678

12

43

56

12

43

5678

12

43

56789

10

AREF

D13D12D11D10D9D8

D7D6D5D4D3D2D1D0A5

A4A3A2A1A0

nRESET

3V35V

VIN

D3D2

Reserved

12

43

5678

12

43

56

12

43

5678

12

43

56789

10

AREF

D13D12D11D10D9D8

D7D6D5D4D3D2D1D0A5

A4A3A2A1A0

nRESET

3V35V

VIN

D3D2

Reserved

MISO1 VCC 2

SCK3

MOSI4

RST5 GND 6

AVRISP5V

nRESET

MOSI

MISO

SCK

HWB

A-Star 32U4 Prime SV©2014 Pololu Corporationwww.pololu.com

Schematic diagramExternal connections

Page 2 of 6

12

43

56

12

43

56789

1011

12

43

56789

12

43

56789

1011

12

43

56789

12

43

56

12

123

123TXLED

RXLED

VREG

STAT

A1BATLEVSHDN

D6 12BZCTRL

5V

VIN

Optional power and ground buses

12

BAT+

12

BAT+

1

2

3.5 mm

BAT+

1

2

3.5 mm

BAT+

31

2

DC barrel jack

BAT+

31

2

DC barrel jack

BAT+

Power inputs

PI601

PI602

CO6

PIJ201 PIJ202

PIJ203

PIJ204

PIJ205 PIJ206

COJ2

PIJ3a01

PIJ3a02

PIJ3a03

COJ3aPIJ3b01

PIJ3b02

PIJ3b03

COJ3b

PIJ4A01

PIJ4A02

COJ4A

PIJ4B01

PIJ4B02

COJ4B

PIJP1A01

PIJP1A02

PIJP1A03

PIJP1A04

PIJP1A05

PIJP1A06

PIJP1A07

PIJP1A08

COJP1A

PIJP1B01

PIJP1B02

PIJP1B03

PIJP1B04

PIJP1B05

PIJP1B06

PIJP1B07

PIJP1B08

COJP1B

PIJP2A01

PIJP2A02

PIJP2A03

PIJP2A04

PIJP2A05

PIJP2A06

COJP2A

PIJP2B01

PIJP2B02

PIJP2B03

PIJP2B04

PIJP2B05

PIJP2B06

COJP2B

PIJP2C01

PIJP2C02

PIJP2C03

PIJP2C04

PIJP2C05

PIJP2C06

COJP2C

PIJP2D01

PIJP2D02

PIJP2D03

PIJP2D04

PIJP2D05

PIJP2D06

COJP2D

PIJP3A01

PIJP3A02

PIJP3A03

PIJP3A04

PIJP3A05

PIJP3A06

PIJP3A07

PIJP3A08

PIJP3A09

PIJP3A010

COJP3A

PIJP3B01

PIJP3B02

PIJP3B03

PIJP3B04

PIJP3B05

PIJP3B06

PIJP3B07

PIJP3B08

PIJP3B09

PIJP3B010

COJP3B

PIJP3C01

PIJP3C02

PIJP3C03

PIJP3C04

PIJP3C05

PIJP3C06

PIJP3C07

PIJP3C08

PIJP3C09

PIJP3C010

PIJP3C011

COJP3C

PIJP3D01

PIJP3D02

PIJP3D03

PIJP3D04

PIJP3D05

PIJP3D06

PIJP3D07

PIJP3D08

PIJP3D09

PIJP3D010

PIJP3D011

COJP3D

PIJP4A01

PIJP4A02

PIJP4A03

PIJP4A04

PIJP4A05

PIJP4A06

PIJP4A07

PIJP4A08

COJP4A

PIJP4B01

PIJP4B02

PIJP4B03

PIJP4B04

PIJP4B05

PIJP4B06

PIJP4B07

PIJP4B08

COJP4B

PIJP4C01

PIJP4C02

PIJP4C03

PIJP4C04

PIJP4C05

PIJP4C06

PIJP4C07

PIJP4C08

PIJP4C09

COJP4C

PIJP4D01

PIJP4D02

PIJP4D03

PIJP4D04

PIJP4D05

PIJP4D06

PIJP4D07

PIJP4D08

PIJP4D09

COJP4D

PIJP701

PIJP702

PIJP703

COJP7

PIJP801

PIJP802

PIJP803

COJP8

PIJP1701

PIJP1702

COJP17

PIJP1901

PIJP1902

COJP19

PIJP2001

COJP20

PIJP2101

COJP21

PIJP2201

PIJP2202

COJP22

PIJP1A04

PIJP1B04

PIJ202

PIJP1A02

PIJP1A05

PIJP1B02

PIJP1B05

PIJP2001

PIJP2A01

PIJP2B01NLA0

PIJP2A02

PIJP2B02

PIJP801NLA1

PIJP2A03

PIJP2B03NLA2

PIJP2A04

PIJP2B04NLA3

PIJP2A05

PIJP2B05NLA4

PIJP2A06

PIJP2B06NLA5

PIJP3A03

PIJP3B03NLAREF

PIJ3a01 PIJ3b01

PIJ4A02 PIJ4B02PIJP1701 PIJP2201

PIJP802NLBATLEV

PIJP1902NLBZCTRL

PIJP4A08

PIJP4B08NLD0

PIJP4A07

PIJP4B07NLD1

PIJP3A02

PIJP3B02

PIJP4A06

PIJP4B06

NLD2

PIJP3A01

PIJP3B01

PIJP4A05

PIJP4B05

NLD3

PIJP4A04

PIJP4B04NLD4

PIJP4A03

PIJP4B03NLD5

PIJP4A02

PIJP4B02

PIJP1901NLD6

PIJP4A01

PIJP4B01NLD7

PIJP3A010

PIJP3B010NLD8

PIJP3A09

PIJP3B09NLD9

PIJP3A08

PIJP3B08NLD10

PIJP3A07

PIJP3B07NLD11

PIJP3A06

PIJP3B06NLD12

PIJP3A05

PIJP3B05NLD13

PIJ206

PIJ3a02

PIJ3a03

PIJ3b02

PIJ3b03

PIJ4A01 PIJ4B01

PIJP1A06

PIJP1A07

PIJP1B06

PIJP1B07

PIJP2D01

PIJP2D02

PIJP2D03

PIJP2D04

PIJP2D05

PIJP2D06

PIJP3A04

PIJP3B04

PIJP3D01

PIJP3D02

PIJP3D03

PIJP3D04

PIJP3D05

PIJP3D06

PIJP3D07

PIJP3D08

PIJP3D09

PIJP3D010

PIJP3D011

PIJP4D01

PIJP4D02

PIJP4D03

PIJP4D04

PIJP4D05

PIJP4D06

PIJP4D07

PIJP4D08

PIJP4D09

PIJP1702 PIJP2202

PIJP701NLHWB

PIJ201NLMISO

PIJ204NLMOSI

PIJP2C01

PIJP2C02

PIJP2C03

PIJP2C04

PIJP2C05

PIJP2C06

PIJP3C01

PIJP3C02

PIJP3C03

PIJP3C04

PIJP3C05

PIJP3C06

PIJP3C07

PIJP3C08

PIJP3C09

PIJP3C010

PIJP3C011

PIJP4C01

PIJP4C02

PIJP4C03

PIJP4C04

PIJP4C05

PIJP4C06

PIJP4C07

PIJP4C08

PIJP4C09

PIJ205

PIJP1A03

PIJP1B03

NLnRESET

PIJP1A01

PIJP1B01NLReserved

PI601NLRXLED

PIJ203NLSCK

PIJP803NLSHDN

PIJP703NLSTAT

PI602NLTXLED

PIJP1A08

PIJP1B08

PIJP2101

NLVIN

PIJP702

Vss 1

VDD 2

Vo 3

RS 4

R/W 5

E 6

DB0 7

DB1 8

DB2 9

DB3 10

DB4 11

DB5 12

DB6 13

DB7 14

LCD

5V

D7

D8

cloc

kwise

R2110k

D13

TXL

RXL

MISO

DB3

DB2

DB1

DB0

1kR24

R/W

J18A

J18B

J18C

J18D

J18I

J18J

BuzzerD5

Q4

100k

R16

BZCTRL

5V

D2Green

1.5kR4

TXL

5V

D1Yellow

2.21kR3

D13

D3Red

2.21kR5

RXL

5V

1k

R19

1.5k

R20

SW3 B SW4 C

SW2 A

1kR27

MISO

3k

R23

3k

R22

A-Star 32U4 Prime SV©2014 Pololu Corporationwww.pololu.com

Schematic diagramOn-board hardware

Page 3 of 6

12

43

567891011

DB0DB1DB2DB3

DB4

DB5

DB6

E

RS

E

RSR/W

DB4DB5DB6DB7

DB7

PIBZ101

PIBZ102

COBZ1

PID101PID102

COD1

PID201PID202

COD2PID301PID302

COD3

PID501PID502

COD5

PIJ18A01PIJ18A02

COJ18APIJ18B01PIJ18B02

COJ18BPIJ18C01PIJ18C02

COJ18CPIJ18D01PIJ18D02

COJ18D

PIJ18I01PIJ18I02

COJ18I

PIJ18J01PIJ18J02

COJ18J

PIJP1801

PIJP1802

PIJP1803

PIJP1804

PIJP1805

PIJP1806

PIJP1807

PIJP1808

PIJP1809

PIJP18010

PIJP18011

COJP18

PILCD101

PILCD102

PILCD103

PILCD104

PILCD105

PILCD106

PILCD107

PILCD108

PILCD109

PILCD1010

PILCD1011

PILCD1012

PILCD1013

PILCD1014

COLCD1

PIQ401

PIQ402

PIQ403COQ4

PIR301

PIR302

COR3

PIR401

PIR402

COR4

PIR501

PIR502

COR5

PIR1601PIR1602

COR16

PIR1901 PIR1902

COR19PIR2001 PIR2002

COR20

PIR2101PIR2102

PIR2103

COR21

PIR2201 PIR2202

COR22PIR2301 PIR2302

COR23

PIR2401

PIR2402

COR24

PIR2701

PIR2702COR27

PISW201

PISW202

COSW2

PISW301

PISW302

COSW3

PISW401

PISW402

COSW4

PIBZ101PID502

PILCD102

PIR401 PIR501PIR2101

PIQ401

PIR1602

NLBZCTRL

PIJP1801

PILCD107

NLDB0

PIJP1802

PILCD108

NLDB1

PIJP1803

PILCD109

NLDB2

PIJP1804PILCD1010NLDB3

PIJ18B01PIJ18B02

PIJP1807

PILCD1013

PIR301

NLD13

NLDB6

PIJ18I01PIJ18I02

PIJP18011

PILCD106NLD8

NLE

PID102

PILCD101

PIQ402PIR1601

PIR2103

PIR2402

PIR2701

PISW302 PISW402

PIJ18D01PIJ18D02

PIJP1805

PILCD1011

PISW201

NLDB4

NLMISO

PIBZ102

PID501PIQ403

PID101PIR302PID201

PIR402PIR1901

PID301PIR502PIR2001

PILCD103

PIR2102

PIR1902

PIR2202

PISW301

PIR2002

PIR2302

PISW401

PIR2702

PISW202

PIJP18010

PILCD105

PIR2401

NLR0W

PIJ18J01PIJ18J02

PIJP1809

PILCD104NLD7

NLRS

PID302

PIJ18C01PIJ18C02

PIJP1806

PILCD1012

PIR2301

NLDB5

NLRXLPID202

PIJ18A01PIJ18A02

PIJP1808

PILCD1014

PIR2201

NLDB7

NLTXL

5VVREG VBUS

0.1 uFC14

0.1 uFC15

STAT 1

EN2

VSNS3

ILIM 4

GND5

IN26

OUT 7IN18

PAD9

TPS2113A

1 uFC9

100kR7

20kR8

0.1 uFC8

270R9

STAT

0.1 uFC13

10 uFC7

10 uFC10

10 uFC11

10 uFC12

D6Blue

10kR25

D8Green

2.21kR26

VBUSVREG

A-Star 32U4 Prime SV©2014 Pololu Corporationwww.pololu.com

Schematic diagramPower multiplexing

Page 4 of 6

10 uFC35

PIC701

PIC702 COC7

PIC801

PIC802COC8

PIC901

PIC902COC9

PIC1001

PIC1002 COC10

PIC1101

PIC1102 COC11

PIC1201

PIC1202 COC12PIC1301

PIC1302 COC13

PIC1401

PIC1402 COC14

PIC1501

PIC1502 COC15

PIC3501

PIC3502 COC35PID601PID602

COD6PID801PID802

COD8

PIR701

PIR702COR7

PIR801

PIR802COR8

PIR901

PIR902

COR9

PIR2501

PIR2502

COR25PIR2601

PIR2602

COR26 PIU201

PIU202

PIU203

PIU204

PIU205

PIU206

PIU207PIU208

PIU209

COU2

PIC1002

PIC1102

PIC1202 PIC1302

PIC1402

PIC1502

PIC3502

PIU207

PIC701

PIC801PIC901

PIC1001

PIC1101

PIC1201 PIC1301

PIC1401

PIC1501

PIC3501PID602 PID802

PIR801

PIR902

PIU202

PIU205

PIU209

PID601PIR2502

PID801PIR2602

PIR701

PIR802

PIU203

PIR901PIU204

PIU201NLSTAT

PIC902

PIR2601PIU206

PIC702

PIC802

PIR702PIR2501

PIU208

VIN

D412V

100kR10

BAT+

100kR11

23

1SW6

Through-hole

100kR12

23

1

SW5

SMT

D712V

Q3Q2

IN1

ON/OFF3 OUT 5

NC 4

GND2

3.3V LDO

4.7 uFC19

0.1 uFC21

4.7 uFC18

5V

1 uFC16

0.1 uFC17

1 uFC20

0.1 uFC22

0.1 uFC23

0.1 uFC24

3V3

NPR17

AVR3V3

REGEN

SHDN

300kR6

VIN

Q1

VIN

0.1 uFC6

A-Star 32U4 Prime SV©2014 Pololu Corporationwww.pololu.com

Schematic diagramRegulators and power connectors

Page 5 of 6

VREG

REGEN

PHASE5

FB 10

SS 1

PGND6

PG8

VIN4

SYNC 2

FS 12

COMP 11

VCC 9

EN7

BOOT3

GND_PAD13

U3

ISL85410

100 nF

C27

91kR29

12.4kR30

4.7 uFC26

FB

27 pFC29

PG 1 uFC28

10 uFC30

10 uFC33

22 uH

L2

10 uFC34

100kR13

300kR15

VIN

BATLEV

15kR14

PIC601

PIC602 COC6

PIC1601

PIC1602COC16

PIC1701

PIC1702COC17

PIC1801

PIC1802COC18

PIC1901

PIC1902COC19

PIC2001

PIC2002COC20

PIC2101

PIC2102COC21

PIC2201

PIC2202COC22

PIC2301

PIC2302COC23

PIC2401

PIC2402COC24

PIC2601

PIC2602 COC26

PIC2701PIC2702

COC27

PIC2801

PIC2802COC28

PIC2901

PIC2902 COC29PIC3001

PIC3002 COC30

PIC3301

PIC3302 COC33

PIC3401

PIC3402 COC34

PID401PID402 COD4

PID701PID702 COD7

PIJP1501

COJP15

PIL201 PIL202

COL2

PIQ101

PIQ102

PIQ103COQ1

PIQ201PIQ202PIQ203

PIQ204

PIQ205PIQ206PIQ207PIQ208PIQ209

COQ2

PIQ301PIQ302PIQ303

PIQ304

PIQ305PIQ306PIQ307PIQ308PIQ309

COQ3

PIR601

PIR602

COR6

PIR1001

PIR1002

COR10

PIR1101

PIR1102COR11

PIR1201

PIR1202COR12

PIR1301

PIR1302COR13

PIR1401

PIR1402COR14

PIR1501

PIR1502COR15

PIR1701

PIR1702COR17

PIR2901

PIR2902COR29

PIR3001

PIR3002COR30

PISW501

PISW502

PISW503COSW5

PISW601

PISW602

PISW603

COSW6

PIU301

PIU302

PIU303

PIU304

PIU305

PIU306

PIU307

PIU308

PIU309

PIU3010

PIU3011

PIU3012

PIU3013

COU3

PIU401

PIU402

PIU403 PIU404

PIU405

COU4

PIC1802 PIC1902 PIC2002 PIC2102 PIC2202 PIC2302 PIC2402PIR1702

PIU405

PIC1602 PIC1702PIU401

PIU403

PIR1701NLAVR3V3

PIQ205PIQ206PIQ207PIQ208PIQ209

PIR1301

PIR1402 PIR1502

NLBATLEV

PIC2901 PIR2901

PIR3002PIU3010NLFB

PIC601

PIC1601 PIC1701 PIC1801 PIC1901 PIC2001 PIC2101 PIC2201 PIC2301 PIC2401

PIC2601

PIC2802 PIC3001

PIC3301

PIC3401

PIQ102

PIR1002

PIR1401 PIR1501

PIR3001

PISW501

PISW603

PIU302

PIU306

PIU3013

PIU402

PIC2701 PIU303PIC2702

PIL201

PIU305

PIC2801

PIU301

PIU309

PIU3011

PIU3012PID401

PIQ204

PIR1001

PID402 PID702PIQ201PIQ202PIQ203 PIQ301PIQ302PIQ303

PIR1102

PID701

PIQ304

PIR1202

PIR1101 PIR1201

PISW502

PISW602

PISW503

PISW601

PIU404

PIU308NLPG

PIQ103

PIR602

PIU307NLREGEN

PIJP1501 PIQ101NLSHDN

PIC602

PIC2602

PIQ305PIQ306PIQ307PIQ308PIQ309

PIR601

PIR1302

PIU304

PIC2902

PIC3002

PIC3302

PIC3402

PIL202

PIR2902

DAT2 1

CS 2

DI 3

VDD 4

CLK 5

VSS 6

DO 7

IRQ/DAT1 8C

D9

CD

10

GN

D11

GN

D12

microSD

3V3

CD

DI

DO

CLK

nCS

DAT1

DAT2

5V

DI

DO

CLK

nCS

3V3

3V3

MOSI

MISO

SCK

61

52

U5A

43U5B

42

53

1

U6

Q5

10kR18

nCS_IN

470

R28

A-Star 32U4 Prime SV©2014 Pololu Corporationwww.pololu.com

Schematic diagrammicroSD hardware

Page 6 of 6

(microSD version only)

CD

DAT1DAT2

nCS_IN 12

43

5

100kR33

3V3

100kR31

VCC

100kR32

VCC

PIJ501

PIJ502

PIJ503

PIJ504

PIJ505

PIJ506

PIJ507

PIJ508

PIJ509PIJ5010PIJ5011PIJ5012COJ5

PIJP501

PIJP502

PIJP503

PIJP504PIJP505

COJP5

PIQ501

PIQ502

PIQ503COQ5

PIR1801

PIR1802

COR18

PIR2801 PIR2802

COR28

PIR3101

PIR3102COR31

PIR3201

PIR3202COR32

PIR3301

PIR3302

COR33

PIU501

PIU502

PIU505PIU506

COU5A

PIU503 PIU504

COU5B

PIU601PIU602

PIU603PIU604

PIU605 COU6

PIJ504

PIQ501

PIR1801

PIR3301

PIU505

PIU605

PIJ509PIJ5010PIJP503

NLCD

PIJ505

PIU504

NLCLK

PIJ508

PIJP505

NLDAT1

PIJ501

PIJP504

NLDAT2

PIJ503PIU506

NLDI

PIJ507

PIR3302

PIU602NLDO

PIJ506

PIJ5011PIJ5012PIJP502

PIU502

PIU603PIR2802

NLMISO

PIR3101PIU501

NLMOSI

PIJ502

PIQ502

PIR1802

PIU601

NLnCS

PIJP501

PIQ503

NLnCS0IN

PIR2801PIU604

PIR3201PIU503

NLSCK

PIR3102

PIR3202