D1
LED
D2
LED
D3
LED
BUZ1
BUZZER
R1
220R
R2
220R
R3
220R
R10
220R
R9
220R
R8
220R
R7
220R
R6
220R
R5
220R
R4
220R
R11
220R
R12
4k7
R13
4k7
R14
4k7
R15
4k7
Q1
PN2222
Q2
PN2222
Q3
PN2222
Q4
PN2222
1
2
3
4
12
11
10
9
8
7
5
6
HS420561K-32
S1
3.3V
3.3V
QB
1
QC
2
QD
3
QE
4
QF
5
QG
6
QH_1
7
GND
8
VCC
16
QA
15
SER
14
OE
13
RCLK
12
SRCLK
11
SRCLR
10
QH_2
9
U2
SN74HC595N
3.3V
GND_1
1
3V3
2
EN
3
SENSOR_VP
4
SENSOR_VN
5
IO34
6
IO35
7
IO32
8
IO33
9
IO25
10
IO26
11
IO27
12
IO14
13
IO12
14
GND_2
15
IO13
16
SD2
17
SD3
18
CMD
19
CLK
20
SD0
21
SD1
22
IO15
23
IO2
24
IO0
25
IO4
26
IO16
27
IO17
28
IO5
29
IO18
30
IO19
31
NC
32
IO21
33
RXD0
34
TXD0
35
IO22
36
IO23
37
GND_3
38
GND_4
39
U1
ESP-WROOM-32
SW1