WIFI_Kit_8原理图 - CSDN文库

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B B

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2018/3/19 11:43:34

E:\DreamSpark\ArduinoSeries\WIFI_Kit_8\导出原理图.SchDoc

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Sheet ofTime:

A3

VDDA

1

LNA

2

VDD3P3

3

VDD3P3

4

VDD_RTC

5

TOUT

6

CHIP_EN

7

EPD_DCDC

8

MTMS

9

MTDI

10

VDDPST

11

MTCK

12

MTDO

13

GPIO2

14

GPIO0

15

GPIO4

16

VDDPST

17

SD_DATA_2

18

SD_DATA_3

19

SD_CMD

20

SD_CLK

21

SD_DATA_0

22

SD_DATA_1

23

GPIO5

24

U0RXD

25

U0TXD

26

XTAL_OUT

27

XTAL_IN

28

VDDD

29

VDDA

30

RES12K

31

EXT_RSRB

32

GND

33

U2

ESP8266EX

GND

10pFC1

10pFC2

!CS!

1

!HOLD!(D3)

7

!WP!(D2)

3

GND

4

SCK

6

SI(D0)

5

SO(D1)

2

VCC

8

U3

W25Q32FVSS

GND

3.3V

1uF

C9

GND

5.6pF

C6

E1

Antenna

L1

NC

L2

NC

GND GND

GND

3.3V

10uF

C7

0.1uF

C8

1uF

C4

GND

URXD

UTXD

GND

R1

12K

GPIO5

GPIO12

GPIO13

GPIO14

GPIO15

GPIO2

GPIO0

GPIO4

GPIO16

CHIP_EN

ADC_IN

GND

GND

+5V

CTS

DTR

D_N

D_P

RTS

GND

GND

+5V

DTR

GPIO0

NRST

RTS

GPIO15

GPIO0

NRST

1uF

C5

1uF

C3

+5V

R2

10K

GND

GND

R10

10K

R14

10K

R8

220K

R7

100K

GND

GND GND

2.2uF

C14 R15 10K

R13 10K

R12 10K

3.3V

#RST

9

#SUSPEND

15

CTS

18

D+

3

D-

4

DCD

24

DSR

22

DTR

23

GND

2

GPIO0/TXLED

14

GPIO1/RXLED

13

GPIO2

12

GPIO3

11

NC

10

REGIN

7

RI

1

RTS

19

RXD

20

SUSPEND

17

TXD

21

VBUS

8

VDD

6

VIO

5

VPP

16

CP2104

VIO: 1.8-VDD

GND

0

U1

CP2104

UTXD

URXD

NRST

C2P

1

C2N

2

C1P

3

C1N

4

VBAT

5

NC

6

VSS

7

VDD

8

RES

9

SCL

10

SDA

11

IREF

12

VCOMH

13

VCC

14

JP1

OLED_0.91_I2C_14Pin

1uFC10

1uFC11

390K

R9

GND

2.2uF

C13

0.1uF

C12

390KR6

10K

R5

10K

R4

GND

RST_OLED

SDA

SCL

GND

GND

3.3V+5V

GND

GND

GND

3.3V+5V

GND

URXD

UTXD

GPIO0

GPIO2

GPIO4

GPIO5

A0

GPIO12

GPIO13

GPIO14

GPIO15

GPIO16

NRST

CTS

DTR

1

2

3

4

5

6

7

8

9

10

11

12

JP2

Header 12

1

2

3

4

5

6

7

8

9

10

11

12

JP3

Header 12

CHIP_EN

CHIP_EN

1 2

Y1

26M

GND

B

C

E

T2

S9014

B

C

E

T1

S9014

+5V

R18

1K

D2 LED0

VBAT

R17 10K

10uF

C18

GND GND

STAT

1

VSS

2

VBAT

3

VDD

4

PROG

5

U5

MIC73831

1

2

JP4

Header 2

GND

GND

GND

D_N

D_P

GND

3.3VIN

1

GND

2

EN

3

NC

4

OUT

5

U4

AP2112-3.3

1uF

C16

10uF

C15

12

D1

1N5819

1uF

C17

+5V

VBAT

1

2

3

4

5

USB1

Header 5

S1

RESET

S2

BTN-0

GND

3.3V

NRST

R19 10KGPIO0

+5V

0.1uF

C19

GND

A1

ESP8266 & 0.91 Inch OLED display

CP2104

Programming Logic

Header & Key

3.3V LDO

Charging circuit

R17 = 10K I = 100mA

R17 = 5K I = 200mA

R17 = 2K I = 500mA

R17 = 1K I = 1A

LED0 Blink -- Power on

Bright -- Charging

Shut down -- Charging over

Heltec Automation

www.heltec.cn

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