4
3
2
USB, SWD, Power switch V_USB USBLC6-2P6
VBUS
D
2
D2 D1
D3 D4
5
USB-MICRO 1 2 3 4 5
4 6 C1
GND
U2 6
USB CHRG
C2
3 2
4.7uF
STBC08PMR
Vcc
BAT PROG
CHRG PWR_ON
SH2 SH1
100nF
VDD
C
SWD
SWDIO RESET
VBat
R10 0R
V_USB
VBat
R11 NC
1 5
D
C3 R5 20K
4.7uF
VPROG = 1V IBAT=(VPROG/RPROG)x1000 RPROG=1000*VPROG/IBAT
Battery Connector VBat 1 2 3
BAT_NTC
BATT
V_USB
CHRG
1 2 3 4 5
SWDCLK
STEVAL-STLKT01V1
7 4
3 1
RXD-USB_DM RXD-USB_DP
V_USB V_USB
U1
1
Battery Charger
PAD GND
5
2
R3 2K
1
CHRG C
U4 1 2 3 4 5
I2C_SDA I2C_SCL
3V3 2
R4 1K
1
SWDCLK
VBat
STC3115IQT
ALM SDA SCL NC GND
VIN VCC BATD/CD RSTIO CG
10 9 8 7 6
C10 1uF Bat-
LED1
R9 50mOHM
R8 1K BAT_NTC
B
B
VBat
VBat
U3
PWR SensorTile 3V3
VDD MIC_CLK
A
C7 4.7uF
RXD-USB_DP RXD-USB_DM SD_SCK SD_MISO
1 2 3 4 5 6 7 8 9
18 17 16 15 14 13 12 11 10
IN EN
GND
1 3
3V3_EN
2
SensorTile Footprint
3V3
LDK120M-R Max 200mA 5 OUT
SW1
ADJ
4
R2 147K C6 R1 47K
4.7uF
SWDIO SWDCLK RESET I2C_SCL I2C_SDA SD_CS SD_MOSI
A
STLCR01V1
Power and connectors 5
4
3
2
1
5
4
3
2
1
3V3 D
D
SD_CS SD_MOSI SD_SCK SD_MISO
C9 100nF
R6 NC
SD
DAT1 DAT0 GND CLK VDD CMD CD/DAT3 DAT2
8 7 6 5 4 3 2 1
R7 NC
C
C
DETC SW
SWA SWB
Micro-SD
B
B
VDD U5 1 6 C8 100nF
5
HTS221
VDD CS
SCL SDA
GND
DRDY
2 4
I2C_SCL I2C_SDA
3
A
A
STLCR01V1
HTS221 and uSD Card 5
4
3
2
1
4
VDD F1 F2 E3 F3 F5 F4 F6 E4 D4
VBAT1 SXTAL0 SXTAL1 RF0 RF1 GND2 FXTAL0 FXTAL1
D5 E5 E6 D6 C6 C3 B6 A6
0.4p
MT
0
FT2
10p
FT1
GND GND
C33
100n
C32
U4
RF0 RF1 GND
RF1 RF0
C29
100p
100n
ANT GND
ANT1
A1 A2
ANT016008LCS2442MA1
GND
X2
GND
GND
C BLUENRG_CSP.
Balun + Chip Antenna CX2016DB32000D0FLJCC
C12
C17
15p
15p
L1
C14
RX_P RX_N
BALF-NRG-01D3.
GND GND
GND
B1 B2
3.9n
SPI_MOSI SPI_CLK SPI_IRQ TEST1 VBAT3 TEST2 TEST3 TEST4
A1 B3 A2 A3 A4 A5 B4 B5 D3
C GND
E2 E1 D2 D1 C1 C2 B1 B2
B
TEST5 TEST6 TEST7 VDD1V8 TEST8 TEST9 TEST10 TEST11 GND1
GND GND GND 100n
Tuning U6
SPI_MISO SPI_CS TEST12 VDD1V2 SMPSFILT2 NO_SMPS SMPSFILT1 RESETN GND3
BLUE_MOSI BLUE_SCK BLUE_IRQ TEST1
2.2u
2.2u
GND
BLUE_RST GND
150n
C30 VDD
B
C13
6
A
BLUE_CS BLUE_MISO
C34
5
VDD
3
100p
1u C31
C44
100n
GND GND
A
C43
2 GND
1
STLCS01V1
D GND
GND
GND
GND
D
BlueNRG-MS, Balun and Antenna Tuning
GND
BlueNRG - Bluetooth Low-Energy Chip 1
2
3
4
5
6
2
3
4
5
P11 P10 P9 P8
INT2 VDD
VDD C18
100n
100n
GND
C11
CS_M SPI_SDA
P3 P4
SCL CS_XL
VDD_IO VDD
CS_MAG SDA
GND2 DRDY
P10 P9
VDD VDD
P8 P7
GND
C1 GND1
NC OCS INT2 VDD
P1 P2
LSM303AGR
P5 P6
SDO SDX SCX INT1
SPI_CLK CS_A
GND
P1 P2 P3 P4
VDD
SDA SCL CS
U10
VDDIO GND1 GND2
VDD GND GND
A
U9
INT2 INT1
P14 P13 P12
A
6
P11 P12
SPI_SDA SPI_CLK CS_AG
1
LSM6DS3H
P5 P6 P7
B
C9 GND
B
VDD GND GND
220n GND
Accelerometer + Gyroscope
Accelerometer + Magnetometer
GND
GND
P8 GND1
GND
P4
SPI_SDA
P5
P3
P7 P6
GND
LR CLK
GND
B3
MIC_CLK
B4
MIC_DATA
C
MP34DT04
Digital Microphone LPS22HB
STLCS01V1
Pressure Sensor
2
B2
CS_P
SDO
INT/DRDY CS
GND
D
1
P9
VDD_IO SCL
SDA
P1 P2
RES
VDD SPI_CLK
VDD
DOUT VDD
U13
B1
VDD
G1*4
GND2
C
P10 VDD
U11
3
D
MEMS Sensors and Microphone
4
5
6
R1
1 KPG-0603SEC-TT
X1
VSS4 VDD3 PC4 PC5 PB0 PB1 PB2 VSS3 VDD2 VDDA PA0 PA3 PA5 PA6 PA7 PB10 PB13 PB12
ABS06-107-32.768KHZ-T
INT2 INT2 INT2
GND
B GND
Crystal
SPI_SDA GPIO3 GPIO2 MIC_CLK INT2 INT2 INT2 NRST GPIO2 GPIO2
VDD
LED
BLUE_RST
GND
OSC32_OUT OSC32_IN TXD-USB_DM
SAI_MCLK SAI_SD
RXD-USB_DP GPIO6
4p
GND
C1 C2 C3 C4 C5 C6 C7 C8 C9 D1 D2 D3 D7 D8 D9 E1 E2 E3
C
4p
VDD
STM32L476JGY6
GND VDD
PA12 PA13 PC11 PG11 PG12 PB4 PB5 PC15 PC14 PA11 PA10 PC10 BOOT0 PH1 PH0 PC9 PA8 PA9
VDD
U1
G9 G8 G7 G6 G5 G4 G3 G2 G1 F9 F8 F7 F3 F2 F1 E9 E8 E7
VDD
VDDUSB MIC_DATA
VSSA VREF+ PC3 PA2 PA4 PA1 PB11 PB14 PB15 PC0 PC1 PC2 PC6 PC8 PC7 NRST PB9 PB8
VDDUSB
GND VDD GND GPIO5 TXD-USB_DM SAI_FS
VDDUSB PA15 PD2 PG9 PG14 PB3 PB7 VSS1 VDD VSS2 PA14 PC12 PG10 PG13 VDDIO2 PB6 PC13 VBAT
VDD
B
A1 A2 A3 A4 A5 A6 A7 A8 A9 B1 B2 B3 B4 B5 B6 B7 B8 B9
VDD
RXD-USB_DP SAI_SCK
C20
VDD
VDDUSB
C2
A
LED
OSC32_OUT
SPI_CLK CS_AG
6
SAI_SD
5
J9 J8 J7 J6 J5 J4 J3 J2 J1 H9 H8 H7 H6 H5 H4 H3 H2 H1
A
4
OSC32_IN
3
CS_P BLUE_SCK BLUE_MISO BLUE_MOSI
2
GND VDD CS_A BLUE_IRQ TEST1 CS_M BLUE_CS GND VDD VDD
1
C
C8
C3
C1
C6
C4
C15
C5
1u
1u
1u
1u
100n
1u
100n
GND
GND
GND
GND
GND
GND
GND
Decoupling Capacitors D
STLCS01V1
Ultra-low-power DSP STM32L476xx Microcontroller
1
2
3
D
Ultra low-power microcontroller and Crystal Oscillator
4
5
6
1
2
3
ADC_IN3, DFSDM_CKOUT SWD_VDD +5V supply 3.0V - 3.6V supply
A
USART RX or USB DP USART TX or USB DM SPI3_SCK, SAI2_SCK_A SPI3_MISO, SAI2_FS_A
4
MIC_CLK VDD VIN VDDUSB GND RXD-USB_DP TXD-USB_DM SAI_SCK SAI_FS
GND GND GPIO6 GPIO5 NRST GPIO3 GPIO2 SAI_SD SAI_MCLK
5
6
A
SWD_GND SWD_IO SWD_CLK SWD_RST LP_UART_RX, I2C3_SCL, ADC_IN1, DFSDM_DATIN4 LP_UART_TX, I2C3_SDA, ADC_IN2, DFSDM_CKIN4 (DFSDM_DATIN6) SPI3_NSS, SAI2_SD_A SPI3_MOSI, SAI2_MCLK_A
Half-Moon Pin output B
B
VDDUSB
VDD
VDD
VDD
VDD
CONN
U2 B2
A2
IN
OUT
EN
GND
B1
A1
C7
LD39115J18
C10
C19
C16
100n
1u
1u
G1
GPIO6 GPIO5 NRST GPIO3 GPIO2 SAI_SD SAI_MCLK SAI_FS
P1 P3 P5 P7 P9 P11 P13 P15
GND
G2
G1
G4
P1 P3 P5 P7 P9 P11 P13 P15
P2 P4 P6 P8 P10 P12 P14 P16
G2
G3
G4
GND
P2 P4 P6 P8 P10 P12 P14 P16
MIC_CLK VDD VIN VDDUSB GND RXD-USB_DP TXD-USB_DM SAI_SCK
G3
GND
C
BM10NB(0.8)-16DS-0.4V(51) 0
VIN
R2
C
GND
Hirose bottom connector (optional) VDD
1u
GND
GND
GND
GND
GND
STLCS01V1
D
Low-Drop Out Voltage Regulator
1
2
3
D
Low-drop out voltage regulator and connectors
4
5
6
5
4
3
2
1
USB, SWD, Power V_USB USBLC6-2P6
5
VBUS
D
3 1
TXD-USB_DM RXD-USB_DP
D2 D1
2
SensorTile Connector
V_USB
U1
USB-MICRO 1 2 3 4 5
4 6
D3 D4
C1
GND
USB D
VDDUSB VIN VDD
SH2 SH1
100nF
MIC_CLK
RXD-USB_DP TXD-USB_DM SAI_SCK 5V
J2
VIN C
V_USB
3V3
VDD
1 2 3
BM10B(0.8)-16DP-0.4V(51) CN2 G2
G1
2 4 6 8 10 12 14 16
1 3 5 7 9 11 13 15
G4
G3
SWDIO SWDCLK TILE_RESET GPIO3 GPIO2 SAI_SD SAI_MCLK SAI_FS
VDDUSB C
SB8 SB9
SensorTile Footprint VIN
U4 1
EN
4.7uF
VDD
SWDIO TILE_RESET
R2 147K
MIC_CLK C15
R1 47K
SWD 1 2 3 4 5
SensorTile
VDD
4
4.7uF
RXD-USB_DP TXD-USB_DM SAI_SCK SAI_FS
1 2 3 4 5 6 7 8 9
18 17 16 15 14 13 12 11 10
B
SWDIO SWDCLK TILE_RESET GPIO3 GPIO2 SAI_SD SAI_MCLK
RESET 1
2
4 5 6 3
A
ADJ
VDDUSB VIN
2
C16
SWDCLK
GND
IN
3
B
3V3
LDK120M-R Max 200mA 5 OUT
TILE_RESET C14 100nF
A
STLCX01V1 Power and connectors 5
4
3
2
1
5
4
3
2
1
Fixing holes On the corners Hole: 2.2mm Head: 4mm
D
D
1 3V3 +
4.7uF
+
1 C9
4.7uF
1
VIO VDD DGND SCKI BCK
H_L H_R VPA PGND LRCK PAD
15 14 13 12 11
3V3
C12 4.7uF
C6 SB6
SAI_FS
47uF
R3
0R
47uF
R4
0R
3 4 5 2 1
C
PHONOJACK STEREO
P
SB5 SB7 +
1
J1 C4
+
SB3 SB2 SB4
U3
6 7 8 9 10
GPIO2 GPIO3 SAI_SD
MODE ADR SDA SCL DIN
3V3
+
1 2 3 4 5
C
AIL AIR VCC AGND VCOM
PCM1774RGP
C11 4.7uF
+
20 19 18 17 16
C8
C5
SAI_SCK SAI_MCLK
100nF
B
B
A
A
STLCX01V1 Audio DAC 5
4
3
2
1
5
4
3
2
1
3V3
Nucleo
R6
R5
4K7
4K7
D
D
CN5 5V 3V3
10 9 8 7 6 5 4 3 2 1
CN6
3V3_Nucleo 1 2 3 4 5 6 7 8
SB19
SB1 TILE_RESET C
1 2 3 4 5 6
8 7 6 5 4 3 2 1
I2C_SCL I2C_SDA
SB16 SB17
SPI_SCK SPI_MISO SPI_MOSI SPI_CS
SB15 SB14 SB13 SB12
SAI_SCK SAI_FS SAI_MCLK SAI_SD
SB18
MIC_CLK_3V3
GPIO3 GPIO2
GPIO3_3V3 GPIO2_3V3 C
UART_TX UART_RX
CN8 CN9
RXD-USB_DP TXD-USB_DM RXD-USB_DP TXD-USB_DM
SB11 SB21 SB10 SB20
10
ST2378ETTR
L1 CC2 L3 CC4 L5 CC6 L7 CC8
C10 100nF
VCC
20
B
CC1 L2 CC3 L4 CC5 L6 CC7 L8
19 18 17 16 15 14 13 12
GPIO2_3V3 GPIO3_3V3
MIC_CLK
UART_TX UART_RX
OE
GPIO3
2 3 4 5 6 7 8 9
GND
SB22 MIC_CLK_3V3 SB23
GPIO2
3V3
11
VL
U5
1
VDD
C13 100nF
B
VDD
A
A
STLCX01V1 Connectors and Level Translator 5
4
3
2
1
