UM2170
Schematic
diagrams
DocID030279 Rev 1
17/24
Figure 19: STEVAL-ILL082V1_Remote circuit schematic
3V
SP1MOD_I2C1_SCL
SP
1M
O
D
_I
2C
1_
SD
A
3V
3V
SP1MOD_I2C1_SCL
SP1MOD_I2C1_SDA
3V
3V
SP1MOD_SWDIO
SP1MOD_SWCLK
NRST
3V
3V
SP1MOD_LED_USER1
SP1MOD_LED_USER2
SP1MOD_INT
SP1MOD_SHDN
SP1MOD_LED_USER2
3V
SP1MOD_I2C1_SDA
SP1MOD_I2C1_SCL
SP1MOD_SW2
SP1MOD_SW1
NRST
SP1MOD_SWCLK
SP1MOD_TXRXLED
3V
SP1MOD_INT
SP1MOD_SWDIO
3V
SP1MOD_SW1
SP1MOD_SW2
SP1MOD_SHDN
SP1MOD_SHDN
SP1MOD_SW1
SP1MOD_SW2
SP1MOD_TXRXLED
SP1MOD_LED_USER1
NRST
3V
868 MHz
DNM
C3
100nF
R5 470K
D2 LED
R11
DNM
R2
DNM
R10
DNM
BT1
BATTERY
C2
10µF
R18
10K
R15 10K
R6 470K
C10
100nF
R7
DNM
U1
SP1ML
TXRXLED
1
SHDN
2
GPIO0
3
GPIO1
4
MODE0
5
MODE1
6
VDD
7
GND
8
CTS
16
RTS
15
RXD
14
TXD
13
RESET
12
BOOTMODE
11
SWCLK
10
SWDIO
9
U2
DNM
SCL/SPC
1
SDA/SDI/SDO
2
SDO/SA0
3
CS
4
IN
T2
5
IN
T1
6
Vdd_
IO
7
Vdd
8
GND
9
GND
10
GND
11
Re
s
12
Re
s
13
Re
s
14
C4
100pF
D1
LED
D5
R14
10K
C9
100nF
C1 DNM
SW1
SW2
R9 470E
C7
100nF
R8 DNM
J1
CON5
1
2
3
4
5
C5
DNM
D6
J2
JUMPER
1
2
R12 470E
D3
BAT54J
D3
R16
470K
R4 470K
D4
BAT54J
R17
470K
SW3
RESET
R3 470K
U3
DNM
VDD
1
SCL/SPC
2
CS
6
GND
5
SD
A/
SD
I/S
DO
4
DRD
Y
3
R1
DNM
R13
10K
ESDALC6V1-1U2
ESDALC6V1-1U2
