1
2
6V - 3.3V
VCC
C1
10uf
C2
1uf
GND
U1
VIN
GND
EN
1
2
3
VOUT
BP
5
4
RT9193-1.8PB
1.8V
C3
1uf
C4
0.1uf
R1
1K
GND
C5
22nf
L1
LED
4
3
GND
GND
1.8V
1.8V
8
7
6
5
U2
VDD
GND
VDDIO
SDO
GND
CSB
SDA
SCL
BMP280
1.8V
C6
0.1uf
1
2
3
4
SDA
SCL
GND
Addr 0xEE
I2C address=1110111x(R/W)
VCC
VCC
P1
1
2
3
4
5
6
CON6
VCC
GND
EXT_SDA
EXT_SCL
MPU_INT
MPU_FSYNC
R3
4.7K
R4
4.7K
VCC
MPU_FSYNC
MPU_INT
EXT_SDA
EXT_SCL
C7
0.1uf
GND
14
13
12
11
10
9
8
U4
VCCB
B1
B2
B3
B4
NC
OE
VCCA
A1
A2
A3
A4
NC
GND
1
2
3
4
5
6
7
1.8V
FSYNC
INT
SDA
SCL
LSF0204PWR
R9
10K
1.8V
1.8V
C11
0.1uf
GND
GND
1.8V
R5
4.7K
R6
4.7K
1
2
3
4
5
6
14
15
16
17
19
7
21
U3
RESV
NC
NC
NC
NC
NC
NC
NC
NC
NC
RESV
AUX_CL
AUX_DA
ICM-20948
VDDIO
VDD
nCS
SCL/SCLK
SDA/SDI
AD0/SDO
INT
FSYNC
REGOUT
RESV
GND
8
13
22
23
24
9
12
11
10
20
18
GYRO_Addr 0xD0
ACCEL_Addr 0xD0
MAG_Addr 0x0C
1.8V
1.8V
R2
10K
C80.1uf
C90.1uf
GND
SCL
SDA
AD0
INT
FSYNC
REGOUT
GND
C10
0.1uf
R7
10K
R8
10K
A
B
C
D
A
B
C
D
1
2
3
4