ESP8266 Nodemcu1.0 CP2102原理图190727.pdf
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ESP8266 Nodemcu1.0 CP2102原理图190727.pdf
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D D
C C
B B
A A
ESP12
GPIO16
nRST
EN
GPIO0
GPIO2R2 12k
R5 12k
R1 12k
GND
VDD3V3
GPIO15
R3 12k
MTDO
EN
GPIO0
GPIO2
GPIO15
GND
VDD3V3
ADC
GPIO14
GPIO12
GPIO13
TXD0
RXD0
GPIO4
GPIO5
MTCK
MTDI
MTMS
MATTERS NEEDING ATTENTION
On every boot/reset/wakeup,
GPIO15 MUST keep LOW, GPIO2 MUST keep HIGH.
GPIO0 HIGH ->RUN MODE, LOW -> FLASH MODE.
When you need to use the sleep mode,GPIO16 and RST should be connected,
and GPIO16 will output LOW to reset the system at the time of wakeup.
+
C2
100uF TAJB107M006RNJ
GND
nRSTR4 12k
C1
100nF
GND
RST
1
ADC/TOUT
2
EN
3
GPIO16/WAKE
4
GPIO14/HSPICLK
5
GPIO12/HSPIQ
6
GPIO13/HSPID/CTS0/RXD2
7
VDD
8
GND
15
GPIO15/HSPICS/RTS0/TXD2
16
GPIO2/TXD1
17
GPIO0/SPICS2
18
GPIO4
19
GPIO5
20
GPIO3/RXD0
21
GPIO1/SPICS1/TXD0
22
SPI_MOSI/SD_CMD
9
SPI_MISO/SD_D0
10
GPIO9/SD_D2
11
GPIO10/SPI_CS/SD_D3
12
SPI_INT/SD_D1
13
SPI_CLK/SD_CLK
14
U1
ESP_12
VDD3V3
SPI_MOSI
SPI_MISO
GPIO9 GPIO10
SPI_INT
SPI_CLK
GNDGND
D_N
D_P
R15 470
TXD0
RXD0
VCC
1
D-
2
D+
3
ID
4
GND
5
MH1
6
MH2
7
MH3
8
MH4
9
U6
USB_Micro_5S_B
nRST
GPIO0
C12
100nF
VDDUSB
C11
10uF
VT4
S8050
VT3
S8050
R20 12k
R22 12k
VDDUSB
OTG_ID
AUTO PROGRAM CIRCUIT
DTR RTS RST GPIO0
1 1 1 1
0 0 1 1
1 0 0 1
0 1 1 0
DTR
RTS
DCD
1
RI
2
GND
3
D+
4
D-
5
VDD
6
REGIN
7
VBUS
8
RST
9
NC
10
SUSPEND
11
SUSPEND
12
NC
13
NC
14
NC
15
NC
16
NC
17
NC
18
NC
19
NC
20
NC
21
NC
22
CTS
23
RTS
24
RXD
25
TXD
26
DSR
27
DTR
28
GND
29
U5 CP2102
D_P
D_NVDD3V3
DCD
RI
GND
DTR
DSR
RTS
CTS
GND
GND
GND
ACTIVE
C10
100nF
C9
10uF
GND
USB UART
POWER
Working Output: 3.3V 800mA
Working Current Limit: 1000mA
Max Current: 1000mA
Max Supply Voltage: 20V
Voltage Dropout:1.2V@800mA
VDD5VVDDUSB
GND/ADJ
1
VOUT
2
VIN
3
U7 NCP1117ST33T3GVDD5V VDD3V3
GND
C14
10uF
GND GND
C13
10uF 25V
D2
1N5819/SS14/S4(SOD_323)
IO
GPIO16
nRST
EN
GPIO14
GPIO12
GPIO13
GPIO0
GPIO2
GPIO15
TXD0
RXD0
GPIO4
GPIO5
TXD2
RXD2
TXD1
ADC_EX
ADC
PIN1
1
PIN2
2
PIN3
3
PIN4
4
PIN5
5
PIN6
6
PIN7
7
PIN8
8
PIN9
9
PIN10
10
PIN11
11
PIN12
12
PIN13
13
PIN14
14
PIN15
15
J3
THT_Male_P_1x15
PIN1
1
PIN2
2
PIN3
3
PIN4
4
PIN5
5
PIN6
6
PIN7
7
PIN8
8
PIN9
9
PIN10
10
PIN11
11
PIN12
12
PIN13
13
PIN14
14
PIN15
15
J4
THT_Male_P_1x15
GPIO3
RESV
GPIO1
HSPICLK
HSPIQ
HSPID
HSPICS
D0
D1
D2
D3
D4
D5
D6
D7
D8
RX
TX
A0
VDD3V3
GND
VDD3V3
GND
VDD5V
GND
VDD3V3
GND
GPIO10
SPI_INT
SPI_CLK
SPI_MOSI
SPI_MISO
GPIO9
SD_CLK
SD_D0
SD_CMD
SD_D1
SD_D3
SD_D2
SD3
SD2
KEY
GPIO16
R16
470
R17
0(NC)
VDD3V3
GND
S3
KEY_RST/USER
nRST
R18
470 R19
470
GND
S4
KEY_FLASH
GPIO0
LED2
BLUE
Use this resistor only in sleep mode
This LED SHOULD BLUE or WHITE to make sure
enough voltage drop
ADC
ADC
R21
220k(1%)
R23
100k(1%)
GND
ADC_EX
Use 1% resistor here.
Nodemcu 1.0 CP2102 Sch
RSV
RSV
SD1
CMD
SD0
CLK
GND
3V3
EN
RST
GND
VIN
3V3
GND
GND
3V3
PIC101
PIC102
COC1
PIC201
PIC202
COC2
PIC901
PIC902
COC9
PIC1001
PIC1002
COC10
PIC1101
PIC1102
COC11
PIC1201
PIC1202
COC12
PIC1301
PIC1302
COC13
PIC1401
PIC1402
COC14
PID201
PID202
COD2
PIJ301
PIJ302
PIJ303
PIJ304
PIJ305
PIJ306
PIJ307
PIJ308
PIJ309
PIJ3010
PIJ3011
PIJ3012
PIJ3013
PIJ3014
PIJ3015
COJ3
PIJ401
PIJ402
PIJ403
PIJ404
PIJ405
PIJ406
PIJ407
PIJ408
PIJ409
PIJ4010
PIJ4011
PIJ4012
PIJ4013
PIJ4014
PIJ4015
COJ4
PILED201
PILED202
COLED2
PIR101
PIR102
COR1
PIR201
PIR202
COR2
PIR301
PIR302
COR3
PIR401
PIR402
COR4
PIR501
PIR502
COR5
PIR1501
PIR1502
COR15
PIR1601
PIR1602
COR16
PIR1701
PIR1702
COR17
PIR1801
PIR1802
COR18
PIR1901
PIR1902
COR19
PIR2001
PIR2002
COR20
PIR2101
PIR2102
COR21
PIR2201
PIR2202
COR22
PIR2301
PIR2302
COR23
PIS301
PIS302
COS3
PIS401
PIS402
COS4
PIU101
PIU102
PIU103
PIU104
PIU105
PIU106
PIU107
PIU108
PIU109
PIU1010
PIU1011
PIU1012
PIU1013
PIU1014
PIU1015
PIU1016
PIU1017
PIU1018
PIU1019
PIU1020
PIU1021
PIU1022
COU1
PIU501
PIU502
PIU503
PIU504
PIU505
PIU506
PIU507
PIU508
PIU509
PIU5010
PIU5011
PIU5012
PIU5013
PIU5014
PIU5015
PIU5016
PIU5017
PIU5018
PIU5019
PIU5020
PIU5021
PIU5022
PIU5023
PIU5024
PIU5025
PIU5026
PIU5027
PIU5028
PIU5029
COU5
PIU601
PIU602
PIU603
PIU604
PIU605
PIU606
PIU607
PIU608
PIU609
COU6
PIU701
PIU702
PIU703
COU7
PIVT301
PIVT302
PIVT303
COVT3
PIVT401
PIVT402
PIVT403
COVT4
PIU5011
NLACTIVE
PIJ302
PIR2101
PIR2302
PIU102
NLADC
PIJ301
PIR2102
NLADC0EX
PIU5023
NLCTS
PIU505
PIU602
NLD0N
PIU504
PIU603
NLD0P
PIU501
NLDCD
PIU5027
NLDSR
PIR2002
PIU5028
PIVT402
NLDTR
PIJ3012
PIR302
PIU103
NLEN
PIC102
PIC202
PIC902
PIC1002
PIC1102
PIC1202
PIC1302
PIC1402
PIJ3010
PIJ3014
PIJ407
PIJ4014
PIR501
PIR2301
PIS302
PIS402
PIU1015
PIU503
PIU5029
PIU605
PIU606
PIU607
PIU608
PIU609
PIU701
NLGND
PIJ404
PIR102
PIR1902
PIU1018
PIVT403
NLGPIO0
PIJ405
PIR202
PIU1017
NLGPIO2
PIJ403
PIU1019
NLGPIO4
PIJ402
PIU1020
NLGPIO5
PIJ305
PIU1011
NLGPIO9
PIJ304
PIU1012
NLGPIO10
PIJ409
PIU106
NLGPIO12
PIJ4010
PIU107
NLGPIO13
PIJ408
PIU105
NLGPIO14
PIJ4011
PIR502
PIU1016
NLGPIO15
PIJ401
PILED202
PIR1702
PIU104
NLGPIO16
PIJ303
PILED201
PIR1601
PIR1501
PIU5026
PIR1701
PIR1801
PIS301
PIR1901
PIS401
PIR2001
PIVT301
PIR2201
PIVT401
PIU509
PIU5010
PIU5012
PIU5013
PIU5014
PIU5015
PIU5016
PIU5017
PIU5018
PIU5019
PIU5020
PIU5021
PIU5022
PIC101
PIJ3013
PIR402
PIR1802
PIU101
PIVT303
NLnRST
PIU604
NLOTG0ID
PIU502
NLRI
PIR2202
PIU5024
PIVT302
NLRTS
PIJ4012
PIR1502
PIU1021
NLRXD0
PIJ309
PIU1014
NLSPI0CLK
PIJ306
PIU1013
NLSPI0INT
PIJ308
PIU1010
NLSPI0MISO
PIJ307
PIU109
NLSPI0MOSI
PIJ4013
PIU1022
PIU5025
NLTXD0
PIC201
PIC901
PIC1001
PIC1401
PIJ3011
PIJ406
PIJ4015
PIR101
PIR201
PIR301
PIR401
PIR1602
PIU108
PIU506
PIU507
PIU702
NLVDD3V3
PIC1301
PID202
PIJ3015
PIU703
NLVDD5V
PIC1101
PIC1201
PID201
PIU508
PIU601
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