−
−
+
+
−
−
+
+
1
1
5
5
10
10
15
15
20
20
25
25
30
30
j
j
i
i
h
h
g
g
f
f
e
e
d
d
c
c
b
b
a
a
5V
G
3.3
4
3
2
1
0
21
20
10
9
8
7
6
5
C3
R1 · 220 Ω
RV1 · 10 kΩ
U1 · ESP32-C3 SuperMini
D1 · red
U1 · ESP32-C3 SuperMini
RV1 · 10 kΩ
R1 · 220 Ω
D1 · red
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
12
12
13
13
14
14
15
15
17
17
a
a
b
b
c
c
d
d
e
e
i
i
MODEL · DC simulation
USB 27.1 mA
I 330 µA
6.7 mA
6.7 mA
4.99 V
0 V
3.3 V
1.65 V
3.19 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
3.3 V
1.65 V
0 V
1.71 V
1.71 V
0 V
−
−
+
+
−
−
+
+
1
1
5
5
10
10
15
15
20
20
25
25
30
30
j
j
i
i
h
h
g
g
f
f
e
e
d
d
c
c
b
b
a
a
5V
G
3.3
4
3
2
1
0
21
20
10
9
8
7
6
5
C3
D1 · red
R1 · 220 Ω
RV1 · 10 kΩ
U1 · ESP32-C3 SuperMini
U1 · ESP32-C3 SuperMini
RV1 · 10 kΩ
R1 · 220 Ω
D1 · red
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
12
12
13
13
14
14
15
15
17
17
a
a
b
b
c
c
d
d
e
e
i
i
MODEL · DC simulation
USB 27.1 mA
I 330 µA
6.7 mA
6.7 mA
4.99 V
0 V
3.3 V
1.65 V
3.19 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
3.3 V
1.65 V
0 V
1.71 V
1.71 V
0 V
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