Schematic

ReferenceDesignsAREPROVIDED"ASIS"AND"WITHALLFAULTS.ArduinoAGDISCLAIMSALLOTHERWARRANTIES,EXPRESSORIMPLIED, REGARDINGPRODUCTS,INCLUDINGBUTNOTLIMITEDTO,ANYIMPLIEDWARRANTIESOFMERCHANTABILITYORFITNESSFORA PARTICULARPURPOSE ArduinoAGmaymakechangestospecificationsandproductdescriptionsatanytime,withoutnotice.TheCustomermustnot relyontheabsenceorcharacteristicsofanyfeaturesorinstructionsmarked"reserved"or"undefined."ArduinoAGreserves theseforfuturedefinitionandshallhavenoresponsibilitywhatsoeverforconflictsorincompatibilitiesarisingfromfuturechangestothem. TheproductinformationontheWebSiteorMaterialsissubjecttochangewithoutnotice.Donotfinalizeadesignwiththisinfo
D21G18
ECC508
100n
GND
GND
GND
GND
+3V3
+3V3
GND
100n
1u
100n
100n
100n
4u7
GND
+3V3
BLM18PG471
+3V3
GREEN
390R
ORANGE
330R
VIN
MFFSMF050
100k
GND
GND
SIA817
SIA817
GND
PMEG6020
GND
GND
BQ24195L
GND
GND
1u
GND
47n
330R
GND
10u 10u
GND GND
4u7
GND
10u10u
GNDGND
10k
2u2
10k 10k
GND
+3V3
+5V
10k
GND
5k49
GND
GND
+3V3
1u 1u
GND GND
+3V3
2N7002
GND
10k
3V8
+3V3
PMEG6020
3V8
+3V3
NINA-W102
GND
AP2112K-3.3
GND
100n 100n
DNP DNP
DNP DNP
GND GND GND
GNDGNDGND
1u
GND
AP2112K-3.3
1u
GND
+3V3D
+3V3D
EP
49
GND
18
GND
35
GND
42
GNDANA
5
VDDANA
6
VDDCORE
43
VDDIN
44
VDDIO
17
VDDIO
36
U1B
EP
9
GND
4
NC
1
NC
2
NC
3
NC
7
VCC
8
U4B
C18
C23
C25
C24
C21
C17 C27
L3
DL3
R27
DL2
R23
F2
R19
D*2
G
S
Q2A
Q2B
1
2
J7
D2
BATT-
BATT+
VBUS
1*2
PMID
23
OTG
8
D+
2
D-
3
STAT
4
SDA
6
SCL
5
INT
7
CE
9
SW
19*2
BTST
21
REGN
22
TS2
12
TS1
11
ILIM
10
BAT
13*2
SYS
15*2
PGND
17*2
TH
25
U5
C14
C15
R28
C19 C20
C16
C13C12
R26
L2
R25 R24
R29
R30
C22 C26
Q3
R21
D3
GND
6*17
VCCIO
9
VCC
10
U2B
2
IN
1
OUT
5
EN
3
U3
C8 C9
C28 C29
C30 C31
C32
2
IN
1
OUT
5
EN
3
U6
C33
VBATT/1.4B
PA09_S0_I2C_SCL/1.7C
PA08_S0_I2C_SDA/1.7C
PA18_OTG/1.2B
A
B
C
D
E
1 2 3 4 5 6 7 8
A
B
C
D
E
1 2 3 4 5 6 7 8