5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
ESP32 Module
Power Supply
Micro USB 5V&USB-UART
Auto program
DTR RTS-->EN IO0
1 1 1 1
0 0 1 1
1 0 0 1
0 1 1 0
SWITCH BUTTON
Connector
Reserve adjustable ouput value!
IO22
IO23
TXD0
RXD0
IO21
SD0
CLK
IO19
IO0
IO4
IO18
IO15
IO2
SD1
EN
IO2
GND
EN
SENSOR_VP
SENSOR_VN
IO34
IO35
IO32
IO33
IO25
IO26
IO27
IO14
IO12
GND
IO22
TXD0
RXD0
IO21
IO19
IO18
IO4
IO0
GND
IO13
SD2
SD3
CMD
CLK
SD0
SD1
IO15
USB_PWR
USB_DN
USB_DP
D-
D+
USB_DP
RTS
DTR
EN
IO0
RXD0 TXD
IO15
IO13
CTS
RTS
TXD0 RXD
DTR
DSR
RTS
CTS
RXD
TXD
USB_DN
DCD
RI
GND
IO0 EN
ACTIVE
EN
SENSOR_VP
SENSOR_VN
IO34
IO35
IO32
IO33
IO25
IO26
IO27
IO14
IO12
IO13
SD2
SD3
CMD
GND
EXT_5V
IO16
IO5
IO17
IO17
IO5
IO16
IO23
GND
VDD33
GND
VDD33
GND
VDD33
GNDGND
GND
EXT_5V
EXT_5V
GND
VDD33
GND
GND
GND
EXT_5V
GND
VDD33
GNDGND
GND
GND
VDD33
Title
Size
Document Number Rev
Date: Sheet of
<Doc> <RevCode>
<Title>
B
1 1Wednesday, September 14, 2016
Title
Size
Document Number Rev
Date: Sheet of
<Doc> <RevCode>
<Title>
B
1 1Wednesday, September 14, 2016
Title
Size
Document Number Rev
Date: Sheet of
<Doc> <RevCode>
<Title>
B
1 1Wednesday, September 14, 2016
R23 470R(1%)
R20 0R(1%)(NC)
R19 0R(1%)(NC)
D1
RED LED
R2
2K(1%)
R18 0R(1%)
SW2
R17 0R(1%)
D5
ESD05V88D-LC
R15 5K(1%)(NC)
SW1
R4 470R(1%)R3 470R(1%)
C3
22uF/25V(10%)
C15 1nF/50V(10%)
D3 1N5819
U2
NCP1117
GND/ADJ
1
VOUT
2
VIN
3
J1
USB_CON8
VBUS
1
D-
2
D+
3
GND
5
NC
4
GND
6
GND
7
GND
8
GND
9
C14 1nF/50V(10%)
D4
ESD05V88D-LC
D2 ESP32_MODULE
GND1
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
GND3
38
IO23
37
IO22
36
TXD0
35
RXD0
34
IO21
33
IO20
32
IO19
31
IO18
30
IO5
29
IO17
28
IO16
27
IO4
26
IO0
25
GND2
15
IO13
16
SD2
17
SD3
18
CMD
19
CLK
20
SD0
21
SD1
22
IO15
23
IO2
24
U1
CP2102_QFN_P28
DCD
1
RI
2
GND
3
D+
4
D-
5
VDD
6
REGIN
7
VBUS
8
RST
9
NC1
10
SUSPEND
11
SUSPEND
12
NC2
13
NC3
14
NC4
15
NC5
16
NC6
17
NC7
18
NC8
19
NC9
20
NC10
21
NC11
22
CTS
23
RTS
24
RXD
25
TXD
26
DSR
27
DTR
28
PGND
29
C21
100uF/6.3V(20%)
C20
10uF/25V(10%)
C23
10uF/25V(10%)(NC)
C19
0.1uF/25V(10%)
R7
5K(1%)(NC)
C9
1nF/50V(10%)
J2
CON20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
R24
0R(1%)
J3
CON20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Q2
S8050(NPN)
R25
3.3K(1%)(NC)
C16
0.1uF/25V(10%)
R11
12K(1%)
R22 12K(1%)
Q1
S8050(NPN)
C1
10uF/25V(10%)
R21 12K(1%)
C22
1uF/10V(10%)
C18
10uF/25V(10%)
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