1 2 3 4 5 6 7 8 9 10 11 12

CHIP_PU

XTAL_P XTAL_N

U1

C
PMBT3904
C3 22pF 3 2
GND XOUT GND
B 10K R3 DTR
Q1 4 1 C4 22pF
GND XIN GND

E
40MHZ

A GND A
VDD3V3 GND

E
PMBT3904
Q2
B R5 10K RTS
C9

USB转串口

C1
C

100nF C2
GND
100nF

VIO

1uF/6.3V
5 S6 IO21
VIO
IO0 U0TXD

100nF
GND VDD3V3
7 14 IO0 U0RXD

CHIP_PU
REGIN GPIO0 SW-PB
13 IO22

100K
GND GPIO1
6 12 20K R2
VDD GPIO2 GND

C82
11 C67 100nF

R12
GPIO3

R11
2 C7 3.3nF

XTAL_N
XTAL_P
GND VDD3V3

C8
C17 100nF 100K R4 GND
VDD3V3 GND

R1
8 9 C15 1uF/6.3V
VBUS VBUS RST S5

10nF
17
D- 4 SUSPEND_HIGH 15 KEY1
R6 33R
D- SUSPEND_LOW GND

10K

10K
SW-PB VDD3V3

22uF/16V C10

C12

C13
C11
D+ 3

48
47
46
45
44
43
42
41
40
39
R7 33R

C80

100nF C14
D+ S1
U3 1
RI 24

VDDA
XTAL_P
XTAL_N
VDDA
DCD

CAP1
CAP2

GPIO21
U0TXD/IO01
U0RXD/IO03
GPIO22
10 23 DTR SW-PB C66 100nF V3V

47uF/16V

1uF/6.3V
100nF

100nF
NC DTR
C21

16 22
C22

VPP DSR
21 R8 33R U0RXD
TXD GND VDD3V3
20 R9 33R U0TXD
RXD
47pF

47pF

19 RTS 1 38 IO19
RTS 18 1 L1 L2 2 VDDA GPIO19
ESP32 VDD3P3_CPU 37
CTS 0R 2.0nH LIN_IN

TIANX
CP2014 XX1 C18 1.0pF 3 VDD3P3 U2 GPIO23 36 IO23
4 35 IO18

C19

C20
VDD3P3 GPIO18
IO36 5 34 IO5
SENSOR_VP/IO36 GPIO5
GND 2 270pF/NC IO37 6 33 SDI/SD1
270pF/NC IO38 7 SENSOR_CAPP/IO37 SD_DATA_1/IO08 32 SDO/SD0
SENSOR_CAPN/IO38 SD_DATA_0/IO07

NC

NC

C76
IO39 8 31 SCK/CLK
GND CHIP_PU 9 SENSOR_VN/IO39 SD_CLK/IO06 30 SCS/CMD
CHIP_PU SD_CMD/IO11

C79
AD 10 29 SWP/SD3
GND GND KEY1 11 VDET_1/IO34 SD_DATA_3/IO10 28 SHD/SD2
VDET_2/IO35 SD_DATA_2/IO09
Humi 12 32K_XP/IO32 GPIO17 27 IO17
BAT_ADC 13 26
32K_XN/IO33 VDD_SDIO
IO25 14 25 DATA
GPIO25 GPIO16

VDD3P3_RTC
BAT

MTMS/IO14

MTDO/IO15
MTCK/IO13
MTDI/IO12
VDD_SDIO

GPIO26
GPIO27
R10

GPIO2
GPIO0
GPIO4
GND

C25
100K%1 R78 100K%1
D8 1N5817 R72 10K

1uF/6.3V
V3V

15
16
17
18
19
20
21
22
23
24
100nF C23

C24
BAT_ADC R74 10K

C26
22uF/16V
HT7750S-SOT89-3

PWR_EN
L3

10nF
3 2

GND
47uH LX VOUT VREF

IO26
IO27
IO14
IO12

IO13
IO15
GND

IO2
IO0
U12
B B

1
BAT GND

GND
U4 JC5333 100nF C30
Q3 3 2
GND

IN OUT V3V
GND 10uF/10V C35
100K

C28

100nF C29

SI2301
1

VREF VDD3V3
47uF/10V

GND
R80

R15 1K VREF

GND GND C27

GND
10uF/10V
10uF/16V
C37

C38

GND
C39

C Q4 E PMBT3904 C31 C32 100nF

GND
U5 100nF
12 16 C33
100nF
47uF/16V

22uF/16V

RST VDD
U8 R14 100K%1 11 CLK1 2K%1 R13 VDD_SDIO
B

1 5 9
+5V IN OUT CLK0
2 10K R18 PWR_EN C36 1.5nF 10 C40
GND CLK0
3 4 VDD3V3
EN NC GND
R19

R20

R16 10K%1

4
AP2112K-3.3V(RT9013) 7 R17 51K%1 2 U6A U7 100nF
Q4 5 - 1 R88 1K CT1 SCS/CMD 1 8
Q5 4 3 SDO/SD0 2 CS VCC 7 SHD/SD2
C42 100nF
Q6 衰减器运放 + DO HOLD
GND 6 SWP/SD3 3 6 SCK/CLK
100K

Q7 WP CLK

11
CD4060BM Q8 14 4 5 SDI/SD1
100K

C46 22uF/10V 13 GND GND W25Q64 DI/1O0

Q9 15 TL034IDR
Q10 1
Q12
C47 GND 2
GND Q13
47uF/10V -VREF 8 GND Q14 3 GND GND
C41 100nF

C43

100nF C44
C45 10uF/10V GND
-VREF

输出频率是 1.545KHZ

10uF/16V
RB1 10K
V3V

R50

R51
GND
U15
1 8

4.7K
GND GND VDD
2 7 U0
CSB GND

1K
IO25 3 6 1 6 IO26
SDI VDDIO V3V VCC SCL
IO26 4 5 2 5
SCK SDO 3 ADDR DVI 4 IO25

C77
BME280 GND SDA

C74

C78
BH1750FVI

100nF
R53
C C

1uF/6.3V
100nF
C50 22pF R22 36K%1 R23 36K%1 R21 36K%1
D2

R24 5.1K%1 GND TL034IDR GND

GND
12 U6D GND

10K
+
1N4148

14 R25 10K%1 AD
跨阻放大器 13 D6(0805) 0R

R32
-

D3
10 U6C GND V3V GND

680nF C49
5 + 8 D4 1N4148
GND +
7 9 TL034IDR
- VDD3V3 VDD3V3

IO15
IO13
IO12
IO14
IO27
IO39
IO38
IO37
IO36

IO23
IO17

IO18
IO19
6 U6B RL 10K%1 RJ ~R%1 36K%1 R26 V3V P6

IN4148

IO2

IO5
- GND

NC
TL034IDR 1
绝对值电路 +5V IO21 2 1
2
CL

CJ

IO22 3
反相放大电路 3
4
4
GND
6.8nF

4P
C~

R27 36K%1 GND

10

12
13
14

12

10
11

11
1
2
3
4
5
6
7
8
9

9
8
7
6
5
4
3
2
1
C48 CI P1

12P
GND

1
2
3
4
5
6
7
8
9
10
11
12
13
14

12
11
10
9
8
7
6
5
4
3
2
1
13P P2
RS

GND

GND
CT2 1K%1

R28
1uF/10V C53

1M%1
Humi D5 1N4148

VBUS V3V

Bytton
GND
C62 100nF
+5V GND
0603ESDA-MLP

0603ESDA-MLP

R00
2K R29 C34 10uF/10V 10uF/10V C68 V3V
Q5 VBAT VREF LM2660M
VBAT GND
5
6

100nF C58 R34 C88 100nF 8 1

V+ FC
GND A1 GND UC GND B12 GND (3.7V~~4.2V) TLC555DR 2 C1+ OSC 7 P8
NC
NC

4.7K
SI2307 8 4 C57 100uF/25V 4 6 1
8 4 C1- LV GND 1
4

UO GND 470pF C60 R35 300R%1 7 7 3 3 10K%1 R31 Bytton 3 GND U10 OUT 5 DATA 2 2
1

B9 1.6K%1 6 2 3
PWR1 VBUS 6 2 3
VCC
E1

A4 B8 CC1 3 FASU R43 5 1 4

VBUS UBUS1 SBU2 BAT 5U11 1 4
CC1 A5 B7 D- Blue LED1 1 GND
D7

CC DN- CHRG
D+ A6 TYPEY-C B6 D+ 5 C59 100uF/25V -VREF 4P
DP1+ DP+ PROG GND
R33

D- A7 B5 100nF C65 GND

GND

C63

C64

DN1- VCONN
A8 B4
A9 SUB1 PWR VBUS TP4054
VBUS UBUS2
B1 GND
GND
GND
GND
GND

10uF/10V

GND GND
2
IN5819

D GND A12 GND D

锂电池充电电路
100nF
2K
100K/NC
1
2
3
4

100K R36
GND
P5 1
R42

2
GND 锂电池
GND VBUS

GND GND
GND
R30 5.1K
GND

Title
CC1

Size Number Revision

A1
Date: 2020/6/4 Sheet of
File: D:\土壤测试水+盐项目\ 土壤计.SchDocDrawn By:

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