1 2 3 4 5 6 7 8 9 10 11

1 2 3 4 5 6 7 8 9 10 11

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

Date:

KiCad E.D.A. kicad 5.0.2-bee76a070ubuntu18.04.1

Rev: B1Size: A2

Id: 1/1

Title: ESP32-EVB_Rev_B1

File: ESP32-ADF_Rev_B.sch

Sheet: /

OLIMEX LTD.

https://www.olimex.com

+

-

-

PWR1

PWRJ-2mm(YDJ-1134)

GND

GND1

PWR_FLAG

GND

K 1A 2

D2

SM

BJ6.0

A(D

O-2

14A

A)

PWR_FLAG

C1

47uF

/6.3

V/2

0%

/X5R

/C0805

C2

47uF

/6.3

V/2

0%

/X5R

/C0805

+5V

R4

2.2

k

K 1A 2

PW

RLE

D1

LE

D/R

ED

/06

03

GNDGNDGNDGND

GND

EN1

GND2

LX3

IN4

FB5

U2

SY8089AAAC(SOT23-5)

Vout=0.6*(1+Ra/Rb)

L22.2uH/1.5A/DCREN IO01 1 1 10 0 1 11 0 0 10 1 1 0

R54

NA/R0603

+3.3V

GPIO4_U1TXD

USB to UART

ESP_EN

GN

D 12RST1

T1107A(6x3,8x2,5MM)

+3.3V

C3

47uF

/6.3

V/2

0%

/X5R

/C0805

C4

47uF

/6.3

V/2

0%

/X5R

/C0805

R37

220R

A1 1

A2 2

CC3

U10

BAT54C(SOT23-3)D_Com

GPIO18_I2C-SDA

12

BUT2

T1107A(6x3,8x2,5MM)

R33

220R

GN

D GPI39_BUT_MODE R44

10k

GPIO23_I2C-SCL

K1

A2

CO

MP

LE

TE

2

LE

D/G

RE

EN

/06

03

R43

2.2

k

GND

GPIO22_GLED

C38

100nF/50V/20%/Y5V

C37

100nF/50V/20%/Y5V

GND

GND

GPIO15_MISO

GPIO14_SCK

GPIO2_MOSI

GPIO17_CS

GPIO15_MISO

GPIO14_SCK

GPIO2_MOSI

GPIO2_MOSI

GPIO0_MCLK

GPIO5_SCLK

GPIO25_LRCK

GPIO26_DSDIN

GPI35_ASDOUT

+BATT

PVDDL1

INR10

VOL12

OUTRP13

PGNDR14

OUTRN15

PVDDR16

OUTLN2

PGNDL3

OUTLP4

#SHDN5

VREF6

INL7

GND8

VDD9

U7

PAM8003

GND

+BATT

C31

47uF/6.3V/20%/X5R/C0805

C33

47uF/6.3V/20%/X5R/C0805

C34

100nF/50V/20%/Y5V/C0603

+ -

1 2

LS

PK

1

DW

02

R

12

FB1FB0805

12

FB2FB0805

C30

270pF

C32

270pF

GNDGND

+ -

1 2

RS

PK

1

DW

02

R

12

FB3FB0805

12

FB4FB0805

C35

270pF

C36

270pF

GNDGND

C29 1uFGND

GPIO21_SHDN

GPIO21_SHDN

C27 1uF

R31

10k

C28 1uF

R32

10k

MCLK1

VREF10

ROUT111

LOUT112

HPGND13

ROUT214

LOUT215

HPVDD16

AVDD17

AGND18

ADCVREF19

DVDD2

VMID20

RIN221

LIN222

RIN123

LIN124

NC25

CE/AD026

CDATA/SDA27

CCLK/SCL28

GND_THERMAL29

PVDD3

DGND4

SCLK5

DSDIN6

LRCK7

ASDOUT8

NC9

U6

ES8388(QFN28)

1.1 1.2

2.1 2.2

3.1 3.2

4.1 4.2

RM1

RA1206_(4x0603)_4B8_22R

R11 22R

GPI35_ASDOUT

GPIO26_DSDIN

GPIO25_LRCK

GPIO0_MCLK

GPIO5_SCLK

GND

R6 220R(100R)

C13

100nF

10k

47

k1

23

Q1

DTC114YKA

2-L

3-R

GND

1

2

3

4

5

AUDIO_JACK_5PIN1

PJ-W47S-05D2-LF_V2

C17 47uF

C16 47uF

GND

GND

R25

27K

+3.3V

GPIO19_HPD

GPIO19_HPD

1

2

MIC2

micR27

2.2K

R29

1K

C26

10uF

GND

C20

1uF

GND

1

2

MIC1

micR26

2.2K

R28

1K

C25

10uF

GND

C19

1uF

GND

R16

4.7R

C18

10uF

GND

C14 47uF

C15 47uF

GND

GPIO18_I2C-SDA

GPIO23_I2C-SCL

+3.3VA

+3.3VA

+3.3VA

C9

10uF

GND

C8

10uF

GND

+BATT

GND

C12

10uF

GND

C11

10uF

GND

C10

10uF

GND

R3

10K

R2

n.a.

GND

+3.3V

0x20

AUDIO

TOUCH BUTTONS

R34 510R

R36 510R

R38 510R

R39 510R

GPIO33_PLAY

GPIO32_SET

GPIO13_VOLM

GPIO27_VOLP

GPIO33_PLAY

GPIO32_SET

GPIO13_VOLM

GPIO27_VOLP

GPI36_BUT_REC

GPI39_BUT_MODE

GPIO12_V

GPI34_RX

GPI34_RX

GPIO17_CS

GPIO16_TX

GPIO16_TX

GPIO22_GLED

BATTERY

CHARGERCHRGb

1

GND2

VBAT3

VCC4

PROG5

U4

BL4054B-42TPRN(SOT23-5)

Vin1

Vss2

CE3

nc4

Vout5

U1

AP1231-33

TESTPAD1

TESTPAD2

TESTPAD3

TESTPAD4

MH0

Vout1

GND2

VCC3

U8

VS1838B

GND

IR receiver

D_N

D_P

GPIO4_U1TXD

R1 220R

R5

1K

R7

1K

1.

1.

1. When ESP32-WROVER, take in mind that

2.

2.

2.

2.

2.

2.

2. GPIO6 to GPIO11 are connected to

are not recommended for other uses!

ESP-WROOM-32

ESP32-WROVER &

GPIO16 and GPIO17 are not connected!

MODULEs

Note:

the SPI flash integrated on the module and

GND1

GPIO25/DAC_1/ADC2_CH8/RTC_GPIO6/EMAC_RXD010

GPIO26/DAC_2/ADC2_CH9/RTC_GPIO7/EMAC_RXD111

GPIO27/ADC2_CH7/TOUCH7/RTC_GPIO17/EMAC_RX_DV12

GPIO14/ADC2_CH6/TOUCH6/RTC_GPIO16/MTMS/HSPICLK/HS2_CLK/SD_CLK/EMAC_TXD213

GPIO12/ADC2_CH5/TOUCH5/RTC_GPIO15/MTDI/HSPIQ/HS2_DATA2/SD_DATA2/EMAC_TXD314

GND15

GPIO13/ADC2_CH4/TOUCH4/RTC_GPIO14/MTCK/HSPID/HS2_DATA3/SD_DATA3/EMAC_RX_ER16

GPIO9/SD_DATA2/SPIHD/HS1_DATA2/U1RXD17

GPIO10/SD_DATA3/SPIWP/HS1_DATA3/U1TXD18

GPIO11/SD_CMD/SPICS0/HS1_CMD/U1RTS19

VDD33(3V3)2

GPIO6/SD_CLK/SPICLK/HS1_CLK/U1CTS20

GPIO7/SD_DATA0/SPIQ/HS1_DATA0/U2RTS21

GPIO8/SD_DATA1/SPID/HS1_DATA1/U2CTS22

GPIO15/ADC2_CH3/TOUCH3/MTDO/HSPICS0/RTC_GPIO13/HS2_CMD/SD_CMD/EMAC_RXD323

GPIO2/ADC2_CH2/TOUCH2/RTC_GPIO12/HSPIWP/HS2_DATA0/SD_DATA024

GPIO0/ADC2_CH1/TOUCH1/RTC_GPIO11/CLK_OUT1/EMAC_TX_CLK25

GPIO4/ADC2_CH0/TOUCH0/RTC_GPIO10/HSPIHD/HS2_DATA1/SD_DATA1/EMAC_TX_ER26

NC(GPIO16/HS1_DATA4/U2RXD/EMAC_CLK_OUT)27

NC(GPIO17/HS1_DATA5/U2TXD/EMAC_CLK_OUT_180)28

GPIO5/VSPICS0/HS1_DATA6/EMAC_RX_CLK29

EN3

GPIO18/VSPICLK/HS1_DATA730

GPIO19/VSPIQ/U0CTS/EMAC_TXD031

NC32

GPIO21/VSPIHD/EMAC_TX_EN33

GPIO3/U0RXD/CLK_OUT234

GPIO1/U0TXD/CLK_OUT3/EMAC_RXD235

GPIO22/VSPIWP/U0RTS/EMAC_TXD136

GPIO23/VSPID/HS1_STROBE37

GND38

THERMAL_PAD39

GPI36/SENSOR_VP/ADC_H/ADC1_CH0/RTC_GPIO04

GPI39/SENSOR_VN/ADC1_CH3/ADC_H/RTC_GPIO35

GPI34/ADC1_CH6/RTC_GPIO46

GPI35/ADC1_CH7/RTC_GPIO57

GPIO32/XTAL_32K_P/ADC1_CH4/TOUCH9/RTC_GPIO98

GPIO33/XTAL_32K_N/ADC1_CH5/TOUCH8/RTC_GPIO89

U3

ESP32-WROVER(_PCB,_IPEX,-xB)_and_ESP-WROOM-32-Universal

+B

AT

T

R8

1K

R9

1K

(n.a

.)

GND

C39

47uF/6.3V/20%/X5R/C0805

GPIO12

GPIO21

PATCHED!!!C40

1uF/6.3V/20%/X5R/C0603

GND

extra mounted near Q4

GPIO19_HPD

P

patched: extra wire on board