7
Schematic diagrams
Figure 4.
X-NUCLEO-LED12A1 expansion board circuit schematic
LED CONNECTORS
NUCLEO MORPHO CONNECTORS
ADDR=58h
ADDR=5Ah
ADDR=59h
Place close to J13
ADDR=5Bh
ARDUINO
CONNECTORS
U2
LED1202
IRQn
1
CS0
2
CS1
3
CS2
4
CS3
5
CS4
6
CS5
7
GND
8
CS6
9
CS7
10
VIN
15
CS11
14
CS10
13
CS9
12
CS8
11
SCL
20
SDA
19
A1
18
A0
17
VLDO
16
R4
10K
CN9 CONN1x8
2.54mm
1
2
3
4
5
6
7
8
C12
1u 16V
C15
1u 16V
J13
Phoenix 1725656
1
2
R1
0R
C13
1u 16V
R16 NM
R6
10K
U4
LED1202
IRQn
1
CS0
2
CS1
3
CS2
4
CS3
5
CS4
6
CS5
7
GND
8
CS6
9
CS7
10
VIN
15
CS11
14
CS10
13
CS9
12
CS8
11
SCL
20
SDA
19
A1
18
A0
17
VLDO
16
+
C11
180u 16V
C4
1u 16V
R12
10K
R15 NM
R18 NM
C6
1u 16V
R1336K
J15
HEADERx3 2.54
1
2
3
U5
LDL112PT-TR
VOUT
2
GND
3
VIN
4
EN
5
ADJ
1
CN6
CONN1x8
2.54mm
1
2
3
4
5
6
7
8
C14
1u 16V
J18
CONN PLUG 26x2 1.27mm Right Angle
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
CN7
CONN19x2 2.54 Low Insertion Force
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
R5
10K
R7
10K
CN5
CONN1x10
2.54mm
1
2
3
4
5
6
7
8
9
10
R17 NM
C3
1u 16V
C2
1u 16V
R3
10K
CN10
CONN19x2 2.54 Low Insertion Force
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
U3
LED1202
IRQn
1
CS0
2
CS1
3
CS2
4
CS3
5
CS4
6
CS5
7
GND
8
CS6
9
CS7
10
VIN
15
CS11
14
CS10
13
CS9
12
CS8
11
SCL
20
SDA
19
A1
18
A0
17
VLDO
16
C10
22u 16V
R2
10K
CN8
CONN1x6
2.54mm
1
2
3
4
5
6
R11
0R
R14
10K
C1
1u 16V
U1
LED1202
IRQn
1
CS0
2
CS1
3
CS2
4
CS3
5
CS4
6
CS5
7
GND
8
CS6
9
CS7
10
VIN
15
CS11
14
CS10
13
CS9
12
CS8
11
SCL
20
SDA
19
A1
18
A0
17
VLDO
16
C5
1u 16V
3V3
L1_CS0
L1_CS1
L1_CS2
L1_CS3
L1_CS4
SCL
SDA
L1_CS5
SCL
SDA
L1_CS6
L1_CS7
L1_CS8
L1_CS9
L1_CS10
L1_CS11
LED_IRQ
3V3
LED_IRQ
3V3
L3_CS0
L3_CS11
L1_CS0
L1_CS11
L3_CS1
L3_CS10
L1_CS1
L1_CS10
L3_CS2
L3_CS9
L1_CS2
L1_CS9
L3_CS3
L3_CS8
L1_CS3
L1_CS8
L3_CS0
L3_CS1
L3_CS2
L3_CS3
L3_CS4
L3_CS4
L3_CS5
GND L3_CS6 L3_CS7
L1_CS4
L1_CS5
GND
L1_CS6
L1_CS7
L3_CS5
L3_CS6
SCL
SDA
SCL
SDA
LED_IRQ
3V3
L2_CS0
L2_CS11
L2_CS1
L2_CS10
L2_CS2
L2_CS9
L2_CS3
L2_CS8
L2_CS4
L2_CS5
GND L2_CS6 L2_CS7
3V3
3V3
SDA
SCL
LED_IRQ
VLED
3V7
3V3
SCL
SDA
LED_IRQ
3V3
L4_CS0
L4_CS11
L4_CS1
L4_CS10
L4_CS2
L4_CS9
L4_CS3
L4_CS8
L4_CS4
L4_CS5
GND
L4_CS6
L4_CS7
L3_CS11
L3_CS10
L3_CS9
L3_CS8
L3_CS7
L4_CS0
L4_CS1
L4_CS2
L4_CS3
L4_CS4
L4_CS5
L4_CS6
L4_CS7
L4_CS8
L4_CS9
L4_CS10
L4_CS11
L2_CS11
L2_CS10
L2_CS9
L2_CS8
L2_CS7
L2_CS6
L2_CS5
L2_CS4
L2_CS3
L2_CS2
L2_CS1
L2_CS0
5V
5V
3V7
3V3
3V3
5V
VLED
LED_IRQ
I_3
I_2
I_5
I_4
I_1
I_2
I_3
I_4
I_5
I_2
I_3
I_4
I_5
I_1
SCL
SDA
I_1
UM2879
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Rev 2
page 9/17
UM2879
Schematic diagrams
