A
B
C
D
1
1
2
3
1
2
3
U1
VIN
GND
EN
VOUT
BP
RT9193-33
5
4
C5
22nf
GND
3.3V
C3
1uf
R1
1K
C4
0.1uf
L1
LED
I2C Addr 0x76
3.3V
GND
INT
CSB
10
9
8
7
6
U3
VDD
VSS
VSS
INT
CSB
VDDIO
SCK
VSS
SDI
SDO
BMP388
1
2
3
4
5
SCK
SDI
SDO
C6
0.1uf
3.3V
GND
GND
GND
R6
0R
VCC
C1
10uf
C2
1uf
GND
POWER
BMP380
P1
5
4
3
2
1
CON5
P2
6
5
4
3
2
1
CON6
VCC
GND
EXT_SDA_SDI
EXT_SCL_SCK
EXT_INT
VCC
GND
EXT_SDO
EXT_SDA_SDI
EXT_SCL_SCK
EXT_CSB
Interface
VCC
3.3V
EXT_SDA_SDI
R2
4.7K
6
1
R3
4.7K
SDI
5
U2A
NDC7002N
VCC
3.3V
EXT_SCL_SCK
R4
4.7K
4
3
R5
4.7K
SCK
2
EXT_CSB
U2B NDC7002N
VCC
3.3V
1
R7
4.7K
6
R8
4.7K
5
CSB
U4A NDC7002N
VCC
3.3V
EXT_SDO
3
R9
4.7K
4
R10
4.7K
2
SDO
U4B NDC7002N
VCC
3.3V
1
R11
4.7K
6
R12
4.7K
5
INT
U5A NDC7002N
EXT_INT
2
3
4
4
A
B
C
D