E103-W01

No.

Parameter item

Parameter value

Notes

1

RF chip

ESP8266EX

Espressif

2

Size

16 * 24 * 3mm

With PCB antenna

3

Weight

1.5g

With PCB antenna

4

PCB

4-layer

Impedance debugging

5

Frequency Band

2.4~2.4835 GHz

6

Connector

2.00mm

SMD

7

Supply voltage

3.0 ~ 3.6V DC

Note: the voltage higher than 3.6V is forbidden

8

Operation Range

100m

Test condition:clear and open area& maximum power, height:> 2m

9

Transmitting power

20dBm

About 100mW

10

AT support

Built-in intelligent processing

Can be read by AT command.

11

Wi-Fi version

802.11 b/g/n

12

Communication interface

UART

13

Antenna type

PCB

50Ω impedance

14

Operating temperature

-40 ~ +85℃

Industrial-grade

15

Operating humidity

10% ~ 90%

No condensation

16

Storage temperature

-40 ~ +125℃

Industrial-grade

Pin

Name

Type

Function

1

RST

I

External reset signal (Low voltage level: Active)

2

ADC

I

ADC input pin

3

CH_PD

I

Module enable, need be pulled up

4

GPIO16

I

module wake up(from deep sleep state), high level effectively

5

GPIO14

IO

PWM1/GPIO14

6

GPIO12

IO

PWM0/GPIO12

7

GPIO13

IO

GPIO13

8

VCC

-

VDC:3.0V~3.6V(above 300mA)

9

CSO

-

For internal FLASH using, N/A.

10

MISO

-

11

GPIO9

-

12

GPIO10

-

13

MOSI

-

14

SCLK

-

15

GND

-

GND

16

GPIO15

I

GPIO15

GPIO2

GPIO0

Boot

17

GPIO2

I

0

1

1

Boot from FLASH

18

GPIO0

I

0

1

0

Download firmware from UART

19

GPIO4

IO

PWM2/GPIO4

20

GPIO5

IO

PWM3/GPIO5

21

RXD

I

UART input pin, support AT command

22

TXD

O

UART output pin, support AT command

GPIO2 is already been internal pulled up

 In transparent-transmission on power-up mode, GPIO2 will indicate the status of module. The module has connected a led to this pin. Users can get the status of the module by observing LED. Besides, you may connect GPIO2 to the external MCU.

 LED indication when module works in power-on transparent transmission mode:

Intermittent double flash:cannot connect to AP access point.

Intermittent single flash:connect to AP access point, but cannot connect to TCP server.

Quench:connect to AP access point and TCP server.