Data Sheet

ManualsBrandsShangHai Ehong Technology ManualsElectronicsBLE Module

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EH-ES101

Ehong

®

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RF

16

Use an internal antenna or connect to an

external antenna.

GND

17

Powered ground

GND

18

Powered ground

ADC2

19

ADC input 2

ANATEST1

20

Antenna test pin1

Used for indicate RF’s TX/RX

event, also can user for

extern antenna switch

DIO8

21

General purpose digit I/O

See IO function map

DIO14/TEST0

22

General purpose digit I/O / Analog

output

See IO function map

DIO7/BOOT

23

General purpose digit BOOT pin

See IO function map, used

for BOOT pin(vcc) for jump to

bootloader when power on

ADC1

24

ADC input 1

DIO4

25

General purpose digit I/O

See IO function map

RESET

26

System reset pin

Active low level

GND

27

Powered ground

VBAT1

28

Powered VCC

1.8-3.6V

Table 1：PIN

Terminal Description

Pin name

a

GPIO mode”000”

Mode serial1”001”

Mode serial0”100”

Mode serial2”101”

Type

Signal

Type

Signal

Type

Signal

Type

Signal

IO0

I/O

GPIO 0

I

UART_CTS

I/O

SPI_CLK

-

-

IO1

I/O

GPIO 1

O

UART_RTS

I/O

SPI_CS1

I

PDM_DAT

A

IO2

I/O

GPIO 2

O

PWM0

O

SPI_OUT

O

PDM_CLK

IO3

I/O

GPIO 3

O

PWM1

I

SPI_IN

O

-

IO4

I/O

GPIO 4

I

UART_RXD

I/O

I2C2_CLK

O

PWM0

IO5

I/O

GPIO 5

O

UART_TXD

I/O

I2C2_DAT

O

PWM1

IO6

I/O

GPIO 6

O

UART_RTS

I/O

I2C2_CLK

I

PDM_DAT

A

IO7

-

-

I

UART_CTS

I/O

I2C2_DAT

O

PDM_CLK

IO8

I/O

GPIO 8

O

UART_TXD

I/O

SPI_CLK

I

PDM_DAT

A

IO9

I/O

GPIO 9

I

SWCLK

I

SPI_IN

-

-

IO10

I/O

GPIO 10

I

SWDIO

O

SPI_OUT

-

-

IO11

I/O

GPIO 11

I

UART_RXD

I/O

SPI_CS1

-

-

IO12

OD

GPIO 12

b

I

-

I/O

I2C2_DAT

-

-

IO14

I/O

GPIO 14

I/O

I2C1_CLK

I/O

SPI_CLK

O

-

Table 2：IO function MAP